Multiple Choice Questions

Metals and Non-Metals

Updated for CBSE 2027
Board Exam Preparation
128+ Practice Questions
Notes

Practice Questions with Answers

Total 128 questions available

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Q. 1
Which of these pairs will react where one substance takes the place of another:
A
Magnesium Chloride and aluminum metal
B
Silver nitrate solution and copper metal
C
Ferrous sulphate solution and silver metal
D
Sodium chloride solution and copper metal
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Q. 2
Why do metals function as reducing agents?
A
They can absorb electrons
B
They have high melting points
C
They can release electrons
D
They have high density
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Q. 3
The essential condition required for rusting of iron is the pressure of
A
Moist oxygenated air
B
Moisture
C
Smooth and shining
D
Rough and granular
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Q. 4
Which metal oxides dissolve in water to produce alkalis?
A
Aluminum oxide
B
Zinc oxide
C
Sodium oxide
D
Iron oxide
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Q. 5
Which among the given alloys contain non-metal as one of its constituents?
A
Amalgam
B
Gunmetal
C
Brass
D
None of these
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Q. 6
Which of the following alloys contain non-metal as one of their constituents?
A
Amalgam
B
Brass
C
Bronze
D
Steel
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Q. 7
What property of metal oxides contributes to their insolubility in water?
A
Their acidic nature
B
Their basic nature
C
Their molecular structure
D
Their color
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Q. 8
The main constituents of cement are
A
Only copper reacts with water
B
Both zinc and copper react with dil. HCl
C
calcium oxide, silicon dioxide, Aluminium oxide
D
calcium oxide, Iron oxide, Sulphur dioxide
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Q. 9
Element M is a metal and its chloride has the formula MCl2. The element most likely belongs to which group of the periodIC table'?
A
59
B
2
C
4
D
12
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Q. 10
Which one of the following properties is not generally exhibited by ionic compounds?
A
Solubility in water
B
High melting and boiling points
C
Electrical conductivity in molten state
D
Electrical conductivity in solid state
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Q. 11
The best electrical conductor is
A
aluminium
B
copper
C
silver
D
Iron
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Q. 12
Annealing is done to
A
increase Transparancy
B
Has low melting point
C
High melting and boiling points
D
decrease brittleness
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Q. 13
Where do the metals which can displace hydrogen from water at room temperature appear in the reactivity series ?
A
Ordinary water
B
Distilled water
C
near the top
D
at the bottom
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Q. 14
Carnallite is the mineral of
A
Cr
B
Na
C
Mg
D
All of these
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Q. 15
Which metal forms an oxide that can act as both acidic and basic?
A
Sodium
B
Calcium
C
Copper
D
Aluminum
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Q. 16
Which of the following is a ferrous alloy
A
Steel
B
Solder
C
Zinc
D
Gallium
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Q. 17
Predict the metal when 2 mL each of concentrated HCI, HNO3 and a mixture of concentrated HCI and concentrated HNO3 in the ratio of 3: 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal got dissolved in test tube C respectively.
A
Pt
B
Al
C
Au
D
Cu
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Q. 18
A list of metals arranged in the order of their decreasing activities is known as:
A
Sulphur
B
Iodine
C
Reactivity series
D
Periodic table
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Q. 19
"is malleable and ......" This statement best describes,
A
a compound
B
Stainless steel
C
a nonmetal
D
a metal
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Q. 20
Which among the given alloys contain non-metal as one of its constituents?
A
Amalgam
B
Brass
C
None of these
D
water
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Q. 21
The metal liquid at room temperature is
A
Stainless steel
B
Alnico
C
Mercury
D
Aluminum
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Q. 22
Which substance commonly triggers reactions with metals?
A
Carbon dioxide
B
Nitrogen gas
C
Oxygen
D
Water vapor
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Q. 23
What happens when calcium is treated with water?
(i) It does not react with water.
(ii) It reacts violently with water.
(iii) It reacts less violently with water.
(iv) Bubbles of hydrogen gas formed stickhe to surface of calcium.
A
(iii) and (iv)
B
(i) and (iv)
C
(ii) and (iii)
D
(i) and (ii)
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Q. 24
Iron is galvonized by coating it with,
A
zinc
B
manganese
C
Deposited on cathode
D
Deposited on anode
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Q. 25
Which insulating material is used for coating the electrical wires?
A
Graphite
B
All of the above
C
PVC
D
Lead
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Q. 26
Why is it necessary to clean the magnesium ribbon before burning it in the air?
A
To get rid of the layer of oxide on it.
B
To make it work better.
C
To make it work worse.
D
All of these
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Q. 27
During smelting, an additional substance is added which combines with impurities to form a fusible product known as
A
Mud
B
Gangue
C
Flux
D
Slag
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Q. 28
An element reacts with oxygen to form a compound that has a high melting point and is soluble in water. Which element is most likely responsible?
A
Calcium
B
Silicon
C
Iron
D
Carbon
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Q. 29
The magnesium is used in
A
Electron alloy
B
All of these
C
Grignard reagent
D
Flash bulb
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Q. 30
Which metal doesn't react with weak hydrochloric acid?
A
Copper
B
Iron
C
Zinc
D
Sodium
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Q. 31
Which pair below will result in displacement reactions?
A
Magnesium chloride solution and aluminum metal.
B
Sodium chloride solution and copper metal.
C
Ferrous sulfate solution and silver metal.
D
Silver nitrate solution and copper metal.
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Q. 32
During electrolytic refining of zinc, it gets
A
Deposited on anode
B
Deposited on cathode as well as anode
C
Remains in the solution
D
Deposited on cathode
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Q. 33
Why are food cans covered with tin instead of zinc?
A
Zinc is less reactive than tin
B
Zinc is more reactive than tin
C
Zinc melts at a higher temperature than tin
D
Zinc is more expensive than tin
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Q. 34
Stainless steel is very useful material for our life. In stainless steel, iron is mixed with
A
Ni and Cu
B
Ni and Cr
C
Cu and Cr
D
Zn and Ni
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Q. 35
Which metal is displaced when zinc metal is put in the solution of copper sulphate ?
A
Zinc
B
Copper
C
Sulphate
D
All of these
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Q. 36
A purple-coloured solid halogen is
A
G
B
Br
C
I
D
L
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Q. 37
Which of the following properties are not shown in metals?
A
Sonorous in nature
B
Electric conductivity
C
Ductility
D
Dullness
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Q. 38
Which metal oxide demonstrates both acidic and basic properties?
A
Aluminum oxide
B
Zinc oxide
C
Sodium oxide
D
Potassium oxide
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Q. 39
Which one of the following metals do not react with cold as well as hot water?
A
Cu
B
Fe
C
Ca
D
Al
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Q. 40
The real bleaching agent present in bleaching powder is
A
Carbon
B
chlorine
C
none of the above
D
CaO
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Q. 41
What is the solubility behavior of most metal oxides in water?
A
They are all soluble.
B
They are all insoluble.
C
Some are soluble while others are insoluble.
D
They react violently with water.
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Q. 42
Which of the following is an example of condensaiton polymers?
A
Sulphur
B
nylon
C
neoprene
D
Iodine
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Q. 43
Which one of the following metals is found in liquid state at room temperature ?
A
Hg
B
Cr
C
Na
D
Fe
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Q. 44
The ability of metals to be drawn into thin wire is known as
A
magnesium
B
sodium
C
Ductility
D
Malleability
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Q. 45
Metal oxides are:
A
none of the above
B
acidic
C
neutral
D
basic
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Q. 46
Metal have ______no. of electrons in their outer most shell
A
3 to 6
B
1 to 2
C
1 to 3
D
2 to 5
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Q. 47
Iron is galvonized by coating it with
A
chromium
B
zinc
C
Aluminium
D
Sodium
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Q. 48
What occurs when metals react with oxygen?
A
They lose electrons
B
They gain electrons
C
They release neutrons
D
They absorb protons
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Q. 49
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identity the element from the following
A
Na
B
Mg
C
F
D
I
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Q. 50
An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that
A
Green solution slowly turns brown
B
Light green solution changes to blue
C
Lower end of test tube become slightly warm
D
A colourless gas with the smell of burning sulphur is observed
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Q. 51
Which statement best describes the reaction of metals with oxygen?
A
All metals react with oxygen at the same rate.
B
Different metals exhibit different reactivities towards oxygen.
C
Most metals do not react with oxygen.
D
Metals react with oxygen to form acids.
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Q. 52
Oxides of non-metals are:
A
acidic
B
neutral
C
basic
D
none of the above
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Q. 53
An alloy is:
A
a compound
B
a heterogeneous mixture
C
an element
D
a homogeneous mixture
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Q. 54
Which factor primarily influences the chemical properties displayed by metals?
A
Atomic weight
B
Melting point
C
Density
D
Electron releasing tendency
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Q. 55
Which is the least conductor of heat
A
Ductility
B
Lead
C
Silver
D
Platinum
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Q. 56
Which of the given metals is present in the anode mud during the electrolytic refining of copper?
A
Gold
B
Iron
C
Sodium
D
Magnesium
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Q. 57
An alloy is
A
An element
B
A compound
C
A homogeneous mixture
D
A heterogeneous mixture
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Q. 58
Which one of the following is used for making pencil lead ?
A
Gangue
B
Mud
C
Sulphur
D
Graphite
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Q. 59
Which of the following is the best conductor of electricity ?
A
Brass
B
Copper
C
Gold
D
Gunmetal
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Q. 60
Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?
A
Fe₂O3
B
FeO
C
Fe304
D
Fe₂O3 and Fe304
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Q. 61
Which statement accurately describes the nature of metal oxides?
A
All metal oxides are basic.
B
Metal oxides are acidic.
C
Metal oxides can exhibit both acidic and basic behavior.
D
Metal oxides are insoluble in water.
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Q. 62
Generally, non-metals are not lustrous. Which of the given nonmetals is lustrous?
A
Iodine
B
Nitrogen
C
Oxygen
D
Sulphur
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Q. 63
Which of the following element is a metalloid?
A
Carbon
B
Calcium
C
Iron
D
Silicon
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Q. 64
Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the given properties is not shown by Z?
A
Has low melting point
B
Conducts electricity in molten state
C
Occurs as solid
D
Has high melting point
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Q. 65
Which of the following is a solid at STP?
A
Silicon
B
Carbon
C
bromine
D
iodine
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Q. 66
Metalloids share the properties of
A
None
B
Metals
C
Both
D
Non-metals
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Q. 67
An alloy of Zn and Cu is dissolved in dil. HCl. Hydrogen gas is evolved. In this evolution of gas
A
Only zinc reacts with dil. HCl
B
Both zinc and copper react with dil. HCl
C
Only copper reacts with water
D
Only copper reacts with dil. HCl
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Q. 68
The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
A
Gr
B
Kr
C
Ar
D
Ne
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Q. 69
The metal liquid at room temperature is
A
Mercury
B
Sodium
C
Amalgam
D
Copper
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Q. 70
Which of the following is likely to happen when the current is started?
A
Copper will continue to be deposited on the iron plate.
B
No reaction will occur at the iron plate or at the copper plate.
C
The copper already deposited on the iron plate will go back into the solution.
D
Iron will be deposited on the copper plate.
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Q. 71
Which among the given alloys contains mercury as one of its constituents?
A
Covalent bonds
B
Zinc amalgam
C
Solder
D
Alnico
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Q. 72
The lightest liquid metal is
A
Ni
B
Cs
C
Fr
D
Gi
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Q. 73
The metal that melts even when kept on the palm is
A
Bronze
B
Mercury
C
Brass
D
Nickel
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Q. 74
The ability of metals to be drawn into thin wire is known as
A
Monazite
B
Ductility
C
Malleability
D
Haemetite
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Q. 75
Cinnabar is an ore of
A
Brass
B
Mercury
C
Lead
D
Bronze
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Q. 76
In general, the number of electrons in the outermost shell of a metal atom is
A
1 to 3
B
1
C
3
D
3 to 1
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Q. 77
Electrical conduction
A
Dullness
B
Electrical conduction
C
Ductility
D
Sonorous in nature
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Q. 78
What is the formula for cinnabar?
A
HgS
B
HgS₂
C
HgS4
D
None of these
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Q. 79
What is the most common metal found in the Earth's crust?
A
Iron
B
Calcium
C
Aluminium
D
Sodium
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Q. 80
Which of the following element is a metalloid?
A
Silicon
B
Calcium
C
Nitrogen
D
Solder
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Q. 81
An alloy is
A
Aluminium
B
Zinc
C
A mixture
D
A element
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Q. 82
The most reactive metal of the following is
A
iron
B
Calcium
C
Silicon
D
sodium
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Q. 83
Iron is galvonized by coating it with
A
zinc
B
manganese
C
nickel
D
chromium
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Q. 84
Volatile metals are purified by
A
Oxidation
B
Liquation
C
Electrolytic refining
D
Distillation
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Q. 85
Galvanisation is a method of protecting iron from rudftng by coating with a thin layer of
A
Zinc
B
Gold
C
Silver
D
Aluminium
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Q. 86
Because of high electropositively, the atom of metals can easily form
A
Negatively ions
B
Occurs as solid
C
Positive ions
D
Diamond
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Q. 87
What is the role of metals in chemical reactions?
A
Absorbing electrons
B
Releasing electrons
C
Gaining protons
D
Gaining electrons
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Q. 88
The best electrical conductor is,
A
Diamond
B
gold
C
silver
D
aluminium
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Q. 89
The reaction, Zinc + Copper sulphate solution → Zinc sulphate solution + Copper,idicates that the metal which appear lower in the reactivity series is,
A
Cu2+
B
Zn
C
Cu
D
Zn2+
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Q. 90
What happens to the surface of some metals when exposed to moist air for a long time?
A
They become transparent
B
They corrode
C
They become brittle
D
They become ductile
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Q. 91
Which one of the following four metals would be displaced from the solution of its salts by other three metals ?
A
Ag
B
Mg
C
Zn
D
Cu
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Q. 92
The soldering wire is an alloy of
A
Phosphors
B
Ductility
C
Copper and aluminium
D
Lead and tin
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Q. 93
Predict the nature of the element if the electronic configurations of three elements X, Y and Z are X -2, 8, Y-2, 8, 7 and Z-2, 8, 2 respectively?
A
X is a metal.
B
Y is a non-metal and Z is a metal.
C
Y is a metal.
D
Z is a non-metal.
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Q. 94
The ability of metals to be drawn into thin wire is known as
A
Conductivity
B
Ductility
C
Malleability
D
Sonorousity
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Q. 95
Which metal is mentioned as being a liquid at room temperature?
A
Iron
B
Aluminium
C
Mercury
D
Sodium
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Q. 96
The composition of aqua-regia is
A
Conc.HCl : Dil. HNO₃ = 3 : 1
B
Dil.HCl : Dil. HNO₃ = 3 : 1
C
Dil.HCl : Conc. HNO₃ = 3 : 1
D
Conc.HCl : Conc. HNO₃ = 3 : 1
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Q. 97
What type of oxides do metals generally form when they react with oxygen?
A
Acidic oxides
B
Neutral oxides
C
Amphoteric oxides
D
Basic oxides
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Q. 98
How do most metal oxides behave in water?
A
They form acids.
B
They form alkalis.
C
They form salts.
D
They remain unchanged.
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Q. 99
The most abundant metal in the earth crust is
A
O
B
Co2
C
Zn
D
Al
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Q. 100
What is the process of extracting metals from their ores known as?
A
Metallurgy
B
Metabolism
C
Metamorphosis
D
Metaphysics
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Q. 101
Which of the following is used for making magnets
A
Soft and dull
B
Smooth and shining
C
alnico
D
magnalium
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Q. 102
Soda Acid for extinguisher contains
A
sodium carboante and carbonic acid
B
Deposited on anode
C
Deposited on cathode as well as anode
D
sodium hydrogen carboante and sulphuric acid
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Q. 103
Silver articles become black on prolonged exposure to air. This is due to the formation of:
A
Ag₂S and Ag3N
B
Ag₂O
C
Ag³N
D
Ag₂S
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Q. 104
Of these, the most ductile metal is ___________ .
A
Ag
B
Al
C
Au
D
Cu
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Q. 105
Which among the given statements is incorrect for magnesium metal?
A
It reacts with steam to form magnesium hydroxide and evolves hydrogen gas
B
All of these
C
It reacts with cold water to form magnesium oxide and evolves hydrogen gas
D
It burns in oxygen with a dazzling white flame
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Q. 106
With which substance do metals typically react to generate hydrogen gas?
A
Oxygen
B
Carbon dioxide
C
Nitrogen gas
D
Water
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Q. 107
Which metals can cause fires if they react quickly with oxygen and need to be stored in kerosene for safety?
A
Sodium, Potassium
B
Phosphorous, Magnesium
C
Calcium, Thallium
D
Tin, lead
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Q. 108
An example of a metal which is a liquid at room temperature
A
Mercury
B
Bromine
C
Oxygen
D
Nitrogen
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Q. 109
Where do the metals which can displace hydrogen from water at room temperature appear in the reactivity series ?
A
Occurs as solid
B
at the bottom
C
near the top
D
in the middle
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Q. 110
Which of the following metal cannot displaced hydrogen ?
A
Gold
B
Copper
C
Silver
D
All of these
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Q. 111
The compound obtained on reaction of iron with steam is/are:
A
Fe₂O3 and Fe3O4
B
Fe₂O3
C
Fe304
D
FeO
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Q. 112
Food cans are coated with tin and not with zinc because:
A
zinc is more reactive than tin.
B
zinc is costlier than tin.
C
zinc has a higher melting point than tin.
D
zinc is less reactive than tin.
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Q. 113
How do metals typically form ions?
A
By gaining electrons
B
By losing electrons
C
By gaining protons
D
By losing protons
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Q. 114
This element is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following.
A
P
B
Na
C
Ca
D
Mg
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Q. 115
Which of the following properties of aluminium makes it suitable for making cooking utensils?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
A
(i) and (iv)
B
ii) and (iii)
C
(i) and (iii)
D
(i) and (ii)
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Q. 116
Non-metals form covalent chlorides because
A
It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas
B
It does not react with water
C
they can share electrons with chlorine
D
they can give electrons to chlorine atoms to form chloride ions
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Q. 117
A student put a zinc rod in iron sulfate solution. After 10 hours, when the rod was removed, what was observed?
A
Zn rod become thinner.
B
The zinc rod became thicker due to iron deposition.
C
The zinc rod remained the same.
D
The zinc rod had holes.
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Q. 118
Insulation of electric wire is done by
A
vinyl chloride
B
neoprene
C
An element
D
A homogeneous mixture
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Q. 119
The elements or compounds which occur naturally in the earth crust are known as:
A
Minerals
B
Ores
C
None of these
D
Gangue
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Q. 120
The essential condition required for rusting of iron is the pressure of
A
Steel
B
Amalgam
C
Moist oxygenated air
D
Moisture
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Q. 121
Arrange the metals in the correct order from most reactive to least reactive:
A
Mg >Al > Zn > Fe
B
Al > Mg >Fe > Zn
C
Mg> Zn > Al > Fe
D
Al>Fe > Zn > Mg
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Q. 122
Copper is extracted from low grade ore by
A
pyrometallurgy
B
electrometallurgy
C
hydrometallurgy
D
all of the above processes
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Q. 123
Among the following select the metal found free in nature:
A
Cu
B
Zn
C
Ag
D
Au
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Q. 124
Electrical wires have a coating of an insulating material. The material generally used is
A
PVC
B
Graphite
C
Solder
D
All can be used
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Q. 125
Ores mined from the earth are usually comtaminated with large amounts of impurities such as soil, sand, etc called_____________.
A
Remains in the solution
B
Gravel
C
Gangue
D
Deposited on anode
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Q. 126
During smelting, an additional substance is added which combines with impurities to form a fusible product known as
A
Mud
B
Slag
C
Flux
D
Gangue
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Q. 127
Cake does not taste bitter due to presence of
A
tartaric acid
B
sodium carbonate
C
Gold
D
Iron
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Q. 128
Where do the metals which can displace hydrogen from water at room temperature appear in the reactivity series ?
A
Alnico
B
near the top
C
next to hydrogen
D
in the middle
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