Explain what would happen to the red litmus if the white solid were the other compound?

Explain what will happen to a plant cell if it is kept in a solution having higher water potential.

What would happen if gravity suddenly disappears?

Explain what is red shift and blue shift of light wave.

Explain what happens when acetylene is treated with ammonical solution of silver nitrate?

A cubic solid is made of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body-centre. What is the formula of the compound? What are the coordination numbes of P and Q?

If earth were to shrink suddenly, what would happen to the length of the day?

What would happen if the protective tin coating over an iron bucket is broken in some place?