Chemistry Questions Answers

• 1. Who is regarded as father of modern chemistry ?

  1. Ruterford
  2. Einstein
  3. Lavoisier
  4. C.V. Raman

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 2. Which is not a type of elements ?

  1. Metals
  2. Non Metals
  3. Metalloids
  4. Gases

  Answer And Explanation

  Answer: Option D

  Explanation:

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• 3. Which acid is present in lemon ?

  1. marlic acid
  2. citric acid
  3. lactic acid
  4. tartaric acid

  Answer And Explanation

  Answer: Option B

  Explanation:

  citric acid is present in lemon.

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• 4. Identify the wrong statement in the following

  1. Atomic radius of the elements increases as one moves down the first group of the periodic table
  2. Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the
  3. Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
  4. Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 5. Rare gases are

  1. mono atomic
  2. di atomic
  3. tri atomic
  4. None of above

  Answer And Explanation

  Answer: Option A

  Explanation:

  Rare gases are mono atomic.

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• 6. The term PVC used in the plastic industry stands for

  1. polyvinyl chloride
  2. polyvinyl carbobate
  3. phosphor vanadiu chloride
  4. phosphavinyl chloride

  Answer And Explanation

  Answer: Option A

  Explanation:

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• 7. What among following is used to produce artificial rain ?

  1. copper oxide
  2. carbon monoxide
  3. silver iodide
  4. silver nitrate

  Answer And Explanation

  Answer: Option C

  Explanation:

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