The businessman kept this amount in the no-interest

Choose the wrong statement

Which of the following elements is a member of the actinoid series?

Which of the following isotope of hydrogen is radioactive in nature?

In which medium, velocity of sound is maximum?

Which type of bond is formed by the sharing of electrons?

Which is the best fire-extinguisher?

The device that converts AC into DC is:

In which form is iron ore primarily found in nature?

Which of the following is an example of a colloidal solution?

Alkali metals have ______.

I. low melting points

II. low densities