Chemistry Questions Answers

• 43. Which is also called Stranger Gas ?

  1. Xenon
  2. Neon
  3. Argon
  4. Nitrous oxide

  Answer :

  Option A

• 44. The major component used in preparation of different types of glasses is :

  1. Sodium borate
  2. Sodium silicate
  3. Silica
  4. Calcium silicate

  Answer :

  Option C

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

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

  Answer :

  Option A

• 46. Alloys made with mercury as one metal are called ?

  1. mixtures
  2. emulsions
  3. solders
  4. amalgams

  Answer :

  Option D

• 47. What is Calcium sulphate ?

  1. epsom salt
  2. blue vitriol
  3. gypsum salt
  4. potash alum

  Answer :

  Option C

• 48. Oxides of metals are alkaline.

  1. TRUE
  2. FALSE

  Answer :

  Option A

• 49. Which have maximum number of isotopes ?

  1. Bromine
  2. Aluminium
  3. Polonium
  4. Carbon

  Answer :

  Option C