Questions

Alkali metals are assigned which group in the Modern Periodic Table?

The hardest natural substance is

The number of valence electrons in an atom of Phosphorous is

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

We protested that we (was going) all the way to Haridwar.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

We lost our self-confidence and pride when the marks (were read) out in class.

Hindustan Socialist Republican Association was founded by

The famous Sanchi Stupa was commissioned by

Which one of the following elements has the lowest atomic mass?