Who has been appointed as the new chairman of the

Which of the following is the correct set-up for electrolytic refining of silver?

A compound that is a white solid which absorbs water vapour from the air is

What is the name of the outermost layer of the Earth?

One mole of any gas at standard temperature and pressure contains a volume of________?

Which of the following is a macronutrient?

Which vitamin is produced in the skin when exposed to sunlight?

Which is the longest bone in the human body?

What is the name of the reaction in which acid reacts with base to form salt and water?

The part of leaf by which it is attached to the stem is called ______.