Amalgams are:

Which of the following is the lightest metal?

Which of the following metals remain in liquid for under normal conditions?

Potassium Permanganate is used for purifying drinking water, because

Which of the following is an element?

What is the unit for measuring the amplitude of a sound?

Reading of a barometer going down is an indication of

Decibel is the unit for

One fathom is equal to

Fathom is the unit of