- Which of the following can be beaten into thin sheets?
(a) Zinc
(b) Phosphorus
(c) Sulphur
(d) Oxygen - Which of the following statements is correct?
(a) All metals are ductile.
(b) All non-metals are ductile.
(c) Generally, metals are ductile.
(d) Some non-metals are ductile. - Which of the following is not a metal?
(a) copper
(b) sulphur
(c) aluminium
(d) iron - The substance that will be flattened on beating with a hammer is
(a) crystal of iodine
(b) lump of sulphur
(c) piece of coal
(d) zinc granule - Arun has learnt that non-metals on beating with a hammer are generally broken into pieces.
Which of the following is a nonmetal?
(a) iron nail
(b) aluminium wire
(c) copper plate
(d) piece of coal - Materials which can be drawn into wires are called ductile. Which of the following is not a ductile
material?
(a) silver
(b) copper
(c) sulphur
(d) aluminium - Metals are generally hard. Which of the following metals is an exception and can be cut with a
knife?
(a) iron
(b) sodium
(c) gold
(d) magnesium - Metals are generally solid. Which of the following metals is in the liquid state at room
temperature?
(a) mercury
(b) silver
(c) aluminium
(d) sodium - Metals generally react with dilute acids to produce hydrogen gas. Which one of the following
metals does not react with dilute hydrochloric acid?
(a) magnesium
(b) aluminium
(c) iron
(d) copper - Which of the following reacts with cold water vigorously?
(a) carbon
(b) sodium
(c) magnesium
(d) sulphur - The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as
sodium hydroxide solution is
(a) copper
(b) iron
(c) aluminium
(d) sodium - Which of the following non-metals reacts and catches fire on exposure to air?
(a) phosphorus
(b) nitrogen
(c) sulphur
(d) hydrogen - Generally metallic oxides are basic and non-metallic oxides are acidic in nature. Solution of
which of the following oxides in water will change the colour of blue litmus to red?
(a) sulphur dioxide
(b) magnesium oxide
(c) iron oxide
(d) copper oxide - Which of the following property is not responsible for copper to be used as electrical conduction
wires?
(a) ductility
(b) colour
(c) good conductor of electricity
(d) it is solid - The ability of metals to be drawn into thin wire is known as
(a) ductility
(b) malleability
(c) sonorousity
(d) conductivity - Aluminium is used for making cooking utensils. Which of the following properties of
aluminium are responsible for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i) and (iv) - Which of the following property is generally not shown by metals?
(a) Electrical conduction
(b) Sonorous in nature
(c) Dullness
(d) Ductility - Which one of the following metals do not react with cold as well as hot water?
(a) Na
(b) Ca
(c) Mg
(d) Fe - Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with
steam?
(a) FeO
(b) Fe2O3
(c) Fe3O4
(d) Fe2O3 and Fe3O4 - 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 stick to the surface of calcium
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (ii)
(d) (iii) and (iv) - Generally metals react with acids to give salt and hydrogen gas. Which of the following acids
does not give hydrogen gas on reacting with metals (except Mn and Mg)?
(a) H2SO4
(b) HCl
(c) HNO3
(d) All of these - Which of the following are not ionic compounds?
(i) KCl (ii) HCl (iii) CCl4 (iv) NaCl
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iii) - Which one of the following properties is not generally exhibited by ionic compounds?
(a) Solubility in water
(b) Electrical conductivity in solid state
(c) High melting and boiling points
(d) Electrical conductivity in molten state - Which of the following metals exist in their native state in nature?
(i) Cu (ii) Au (iii) Zn (iv) Ag
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv) - Metals are refined by using different methods. Which of the following metals are refined by
electrolytic refining?
(i) Au (ii) Cu (iii) Na (iv) K
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii) and (iv) - Silver articles become black on prolonged exposure to air. This is due to the formation of
(a) Ag3N
(b) Ag2O
(c) Ag2S
(d) Ag2S and Ag3N - Galvanisation is a method of protecting iron from rusting by coating with a thin layer of
(a) Gallium
(b) Aluminium
(c) Zinc
(d) Silver - Stainless steel is very useful material for our life. In stainless steel, iron is mixed with
(a) Ni and Cr
(b) Cu and Cr
(c) Ni and Cu
(d) Cu and Au - If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating.
It is due to the formation of
(a) CuSO4
(b) CuCO3
(c) Cu(NO3)2
(d) CuO - Generally, metals are solid in nature. Which one of the following metals is found in liquid state
at room temperature?
(a) Na
(b) Fe
(c) Cr
(d) Hg - Which of the following metals are obtained by electrolysis of their chlorides in molten state ?
(i) Na (ii) Ca (iii) Fe (iv) Cu
(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii) - Generally, non-metals are not lustrous. Which of the following nonmetal is lustrous?
(a) Sulphur
(b) Oxygen
(c) Nitrogen
(d) Iodine - Which one of the following four metals would be displaced from the solution of its salts by
other three metals?
(a) Mg
(b) Ag
(c) Zn
(d) Cu - 2 mL each of concentrated HCl, HNO3 and a mixture of concentrated HCl 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. The metal could be
(a) Al
(b) Au
(c) Cu
(d) Pt - An alloy is
(a) an element
(b) a compound
(c) a homogeneous mixture
(d) a heterogeneous mixture - During electrolytic refining of zinc, it gets
(a) deposited on cathode
(b) deposited on anode
(c) deposited on cathode as well as anode
(d) remains in the solution - An electrolytic cell consists of
(i) positively charged cathode (ii) negatively charged anode
(iii) positively charged anode (iv) negatively charged cathode
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (ii) ad (iv) - 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. Identify the element from the following
(a) Mg
(b) Na
(c) P
(d) Ca - Alloys are homogeneous mixtures of a metal with a metal or nonmetal. Which among the
following alloys contain non-metal as one of its constituents?
(a) Brass
(b) Bronze
(c) Amalgam
(d) Steel - Which among the following statements is incorrect for magnesium metal?
(a) It burns in oxygen with a dazzling white flame
(b) It reacts with cold water to form magnesium oxide and evolves hydrogen gas
(c) It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas
(d) It reacts with steam to form magnesium hydroxide and evolves hydrogen gas - Which among the following alloys contain mercury as one of its constituents?
(a) Stainless steel
(b) Alnico
(c) Solder
(d) Zinc amalgam - Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which
of the following properties is not shown by Z?
(a) Has high melting point
(b) Has low melting point
(c) Conducts electricity in molten state
(d) Occurs as solid - The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 7 and Z —
2, 8, 2. Which of the following is correct?
(a) X is a metal
(b) Y is a metal
(c) Z is a non-metal
(d) Y is a non-metal and Z is a metal - Although metals form basic oxides, which of the following metals form an amphoteric oxide?
(a) Na
(b) Ca
(c) Al
(d) Cu - Generally, non-metals are not conductors of electricity. Which of the following is a good
conductor of electricity?
(a) Diamond
(b) Graphite
(c) Sulphur
(d) Fullerene - Electrical wires have a coating of an insulting material. The material, generally used is
(a) Sulphur
(b) Graphite
(c) PVC
(d) All can be used - Which of the following non-metals is a liquid?
(a) Carbon
(b) Bromine
(c) Phosphorus
(d) Sulphur - Which of the following can undergo a chemical reaction?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
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