Halogens are belonging to:

During uniform motion of an object along a straight line, its ___________ remains constant with time.

The catalyst is a substance through which the rates of chemical reactions ________.

Which of the following has low density and low melting point?

.______ is least reactive element belonging to group 17.

Which of the below allotropes of carbon is in the form of geodesic globe?

In which of the following classifications are the elements arranged in the order of their increasing atomic number?

Thin wires can be pulled from a metal piece. For which property of the metal is it responsible?