Fathometer is used to measure

The most commonly used bleaching agent is 

The metallurgical process in which a metal is obtained in a fused state is called

Which of the following is not a major source of proteins? 

The velocity of light was first measured by

What is the product formed when sodium bicarbonate is heated strongly? 

Who among the following evolved the concept of the relationship between mass and energy?

“The Long walk to Freedom” is the autobiography of __________.