Allied solutions

Allied solutions

Grade 7

Language of Chemistry | Exercise

Question 2

Q1) Select the correct answer fromA,B,C,D and E for each statement given below:

A: Hydrogen

B: Copper (II) Oxide

C: Oxygen

D: Copper (II) Hydroxide

E: Ammonia

  1. The black residue obtained on heating copper carbonate.

  2. The basic gas obtained when two gases react in the presence of a catalyst and the reaction is exothermic.

  3. The gas obtained when potassium chloride is heated in the presence of a catalyst.

  4. The pale blue precipitated obtained when copper [II] sulphide reacts with sodium hydroxide.

  5. The gas which reacts with oxygen to give a neutral liquid.

Solution:

  1. B: Copper (II) Oxide
  2. A: Hydrogen
  3. C: Oxygen
  4. D: Copper (II) Hydroxide
  5. E: Ammonia

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 2

Q1) Select the correct answer fromA,B,C,D and E for each statement given below:

A: Hydrogen

B: Copper (II) Oxide

C: Oxygen

D: Copper (II) Hydroxide

E: Ammonia

  1. The black residue obtained on heating copper carbonate.

  2. The basic gas obtained when two gases react in the presence of a catalyst and the reaction is exothermic.

  3. The gas obtained when potassium chloride is heated in the presence of a catalyst.

  4. The pale blue precipitated obtained when copper [II] sulphide reacts with sodium hydroxide.

  5. The gas which reacts with oxygen to give a neutral liquid.

Solution:

  1. B: Copper (II) Oxide
  2. A: Hydrogen
  3. C: Oxygen
  4. D: Copper (II) Hydroxide
  5. E: Ammonia

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube