With reference to 'Silver articles', which of the following statements is/are correct? 1. Silver articles turn black after some time when exposed to air. 2. It happens due to coating of silver sulphide.

Consider the following statements: 1. Concentrated H₂SO₄ is used as a dehydrating agent in esterification reaction. 2. The hydrophilic part of soap is oil and it dissolves in water. 3. Nickel is used…

Which of the following are the constituents of a soda acid fire extinguisher?

Which of the folowing pairs will give displacement reactions ?

The chemical reaction K2​SO4​(aq.)+BaCl2​(aq.)→2KCl(aq.)+BaSO4​(solid) is an example of:

Catalyst used in hydrogenation of vegetable oil into vanaspati ghee is