
Consider the following statements
1. Clusters of atoms that act as an ion are called polyatomic ions.
2. In ionic compounds, the charge on each ion is used to determined the chemical formula of the compound.
Which of the statement(s) given above is/are correct?


Important Questions on Chemistry




Consider the following statements concerning X-rays:
They produce heat when absorbed by matter.
They are generated when fast-moving electrons strike a metal target.
They can penetrate through a thin sheet of aluminium.
Which of the statements given above are correct?

Which of the following statements regarding heavy water are correct?
. It is extensively used as a moderator in nuclear reactors.
. It cannot be used in exchange reactions to study reaction mechanisms.
. Viscosity of heavy water is relatively smaller than that of ordinary water.
. The dielectric constant of heavy water is smaller than that of ordinary water.
Select the correct answer using the codes given below:


