Chemistry interview questions and answers

31)
Which one among the following metals is used in fireworks to make a brilliant white light?
  • Sodium
  • Magnesium
  • Aluminium
  • Silver
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  • Answer
  • b) Magnesium
32)
Which one of the following is its softest?
  • Sodium
  • Iron
  • Aluminium
  • Copper
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  • Answer
  • a) Sodium
33)
Which of the following is not a natural polymer?
  • Nylon
  • Teflon
  • PVC
  • Cellulose
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  • Answer
  • d) Cellulose
34)
Which one of the following is the hardest alkali metal?
  • Li
  • K
  • Na
  • Cs
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  • Answer
  • a) Li
35)
Which one of the following carbohydrates is used for silvering of mirror?
  • Sucrose
  • Maltose
  • Fructose
  • Glucose
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  • Answer
  • d) Glucose