Choose the correct option in which the given figure is

The weakest of all fundamental forces is –

Who proposed the 'Law of Octaves' in the periodic classification of elements?

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

Which of the following apparatus is used to test the acidity of the aqueous solution?

A galvanometer is used to:

The time period of a pendulum when taken to the Moon would:

Which of the following is a noble gas ?

What is the maximum value of deforming force up to which a material shows elastic property and above which the material loses it?

What is the chemical name for baking soda?

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