Chemical Bonding — Chemistry STD 10 — Question

Give one example of a reaction between the ammonia and hydrogen chloride gases which produces a solid
compound.

What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.

When gases react their volumes bear a simple ratio to each other, under the same conditions of temperature and pressure. Who proposed this gas law?

Electrode used as cathode in electrorefining of impure copper.

Name the gas which turns acidified potassium dicromate solution green.

Name two substances in the following case:
Contain only molecules.

Give balanced reactions for the following conversion:
Ammonia solution to an amphoteric hydroxide.

Name the following:
The rocky impurities present in an ore.

Write balanced equation for the following reaction:
Reduction of copper oxide by hydrogen.