Who received Bharat Ratna and Nishan-e-Pakistan?

Newton's first law of motion gives the concept of –

In a compound, the elements are always present in definite proportions by:

How can a mixture of sand and salt be separated?

What is the hybridization of carbon in ethyne (C₂H₂)?

Adding which substance gives a blue color to glass?

_______ is a common name of ethanoic acid.

Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?

The device which transfer the signal from low resistance region to high resistance region is –

Bleaching powder is represented as ______.

Anemometer is used to measure –