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Metals and Their Compounds

200 MCQ questions with answers and explanations · page 8 of 8

Test yourself▶ 25 question test▶ 50 question test

Q176. When heated in air, vermilion gets converted into oxide of….

  1. AMercury
  2. BAntimony
  3. CCopper
  4. DCadmium
Show answer & explanation

Answer: A) Mercury

Q177. Which of the following does not form an oxide when reacted with oxygen?

  1. AMagnesium
  2. Blead
  3. CTin
  4. DSilver
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Answer: C) Tin

Q178. Solder is an alloy of which of the following?

  1. ACu and Sn
  2. BFe and Zn
  3. CPb and Sn
  4. DAg and Zn
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Answer: C) Pb and Sn

Q179. Lead is mainly extracted from which ore?

  1. AGalena
  2. BCerussite
  3. CCinnabar
  4. DHematite
Show answer & explanation

Answer: A) Galena

Q180. The following metal pollutes the air when petrol is burnt in vehicles

  1. AMercury
  2. Bcadmium
  3. Clead
  4. Dcarbon dioxide
Show answer & explanation

Answer: C) lead

Q181. Which of the following is the most stable element?

  1. Aoxygen
  2. Bnitrogen
  3. CRadium
  4. Dlead
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Answer: D) lead

Q182. Which of the following metals is used in storage batteries?

  1. Acopper
  2. Blead
  3. Caluminum
  4. Dzinc
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Answer: B) lead

Q183. Red Lead is

  1. APtSO⁴
  2. BPbO²
  3. CPh³O⁴
  4. DPbCO³
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Answer: C) Ph³O⁴

Q184. Lead pipes are not suitable for carrying drinking water because

  1. AThese react with water mixed with air to form toxic lead hydroxide.
  2. BA thick layer of lead carbonate begins to form on it.
  3. CThese start getting corroded by air.
  4. DThey react with water to form land oxides.
Show answer & explanation

Answer: A) These react with water mixed with air to form toxic lead hydroxide.

Q185. The chemical name of 'Galena' is

  1. Alead sulphate
  2. Blead oxide
  3. Clead sulphide
  4. Dcalcium sulphate
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Answer: C) lead sulphide

Q186. The trade name of lead oxide (PbO) is

  1. ALitharge
  2. BGalena
  3. CCinnabar
  4. DRutile
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Answer: A) Litharge

Q187. Which of the following metals is as strong as steel but half its weight?

  1. APlatinum
  2. BTitanium
  3. Ccopper
  4. Dzinc
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Answer: B) Titanium

Q188. Which of the following is called the 'metal of the future'?

  1. ASteel
  2. Bcopper
  3. CIron
  4. DTitanium
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Answer: D) Titanium

Q189. What is cadmium pollution associated with?

  1. AMinamata disease
  2. BBlack foot disease
  3. Cdyslexia
  4. DItai Itai
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Answer: D) Itai Itai

Q190. Which of the following metals is used in the manufacture of aircraft?

  1. AChromium
  2. BTitanium
  3. CPalladium
  4. Dlead
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Answer: C) Palladium

Q191. Which of the following metals is in liquid state at room temperature?

  1. Asodium
  2. BRadium
  3. CGallium
  4. DSilicon
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Answer: C) Gallium

Q192. It is known as 'White Gold'.

  1. Apetroleum
  2. BPlatinum
  3. Csilver
  4. Dpure gold
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Answer: B) Platinum

Q193. Known as 'Adam the Catalyst'

  1. APlatinum
  2. BNickel
  3. CPalladium
  4. DAlumina
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Answer: A) Platinum

Q194. Which of the following is the hardest metal?

  1. ASleep
  2. BIron
  3. CPlatinum
  4. Dtungsten
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Answer: C) Platinum

Q195. In an incandescent electric bulb, the filament is made of which metal?

  1. Aaluminum
  2. Bcopper
  3. Ctungsten
  4. Dsilver
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Answer: C) tungsten

Q196. Which of the following metals is used as the filament of light bulbs?

  1. AIron
  2. Bmolybdenum
  3. Csilver
  4. Dtungsten
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Answer: D) tungsten

Q197. Which metal was earlier called 'wolfram'?

  1. Atungsten
  2. BMolybdenum
  3. CZinc
  4. DRadium
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Answer: A) tungsten

Q198. Which of the following materials is very hard and very ductile?

  1. Acarborundum
  2. Btungsten
  3. CCast Iron
  4. DNichrome
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Answer: B) tungsten

Q199. Which of the following heating elements is used in electric press?

  1. Acopper wire
  2. Bnichrome wire
  3. Clead wire
  4. Diron wire
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Answer: B) nichrome wire

Q200. 'Degana' located in Rajasthan is famous for the production of what?

  1. Alimestone
  2. Bmarble
  3. CPlatinum
  4. Dtungsten
Show answer & explanation

Answer: B) marble

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