Chemistry Questions Answers

• 36. Biogas majorly contains ?
  

  1. Ethane
  2. Methane
  3. Hydrogen
  4. CO

  Answer :

  Option B

• 37. The cyclotron is used to

  1. accelerating particles
  2. separating elements
  3. purifying metals
  4. making alloys

  Answer :

  Option A

• 38. Which gas is filled in refrigerators ?

  1. Chlorofluorocarbon
  2. Acetylene
  3. Methane
  4. Butane

  Answer :

  Option A

• 39. Which of the following is produced during the formation of photochemical smog ?

  1. Nitrogen Oxides
  2. Hydrocarbons
  3. Methane
  4. Ozone

  Answer :

  Option D

• 40. The luster of a metal is due to :

  1. high polishing
  2. high density
  3. chemical inertness
  4. presence of free electrons

  Answer :

  Option D

• 41. Sugars are converted in the liver into

  1. Glycogen
  2. Vitamin
  3. Monosaccharide
  4. None of above

  Answer :

  Option A

• 42. Rare gases are

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

  Answer :

  Option B

  Explanation:

  Rare gases are di atomic.