‘Atomic theory’ of matter was given by A. Avogadro B. Dalton C. Newton D. Pascal

The correct answer is B. Dalton.

John Dalton was an English chemist and physicist who is considered the founder of modern atomic theory. He proposed that all matter is made up of tiny, indivisible particles called atoms. He also proposed that atoms of the same element are identical, but atoms of different elements have different properties. Dalton’s atomic theory was a major breakthrough in chemistry, and it is still used today as the foundation of chemistry.

Avogadro was an Italian physicist and chemist who is best known for his work on the atomic theory of matter. He proposed that equal volumes of all gases at the same temperature and pressure contain the same number of molecules. This is now known as Avogadro’s law. Avogadro’s work was important in developing the atomic theory of matter, and it is still used today in chemistry and physics.

Newton was an English physicist and mathematician who is considered one of the most influential scientists of all time. He is best known for his work on gravity, motion, and light. Newton’s work was important in developing the atomic theory of matter, but