Question

32. Match the substances in Column A with their applications given in Column B.

Column 1	Column 2
Marie Curie	Safety Lamp
John dalton	Helium
William Ram'sey	Nobel Prize Winner
Sir Humphry davy	Atomic theory

Answer 1

(A) Marie Curie - (iii) Nobel Prize Winner

• Marie Curie was a physicist and chemist who is most recognised for her breakthrough radiation research.
• She was the first woman to earn two Nobel Prizes, one in physics and the other in chemistry.

(B) John dalton - (iv) Atomic theory

• John Dalton was a chemist and physicist. He demonstrated that matter is made up of tiny, indivisible particles known as 'atoms.'
• In order to do so, he suggested the atomic theory, which became known as “Dalton's atomic theory.”

(C) William Ramsey - (ii) Helium

• Helium was discovered by William Ramsey.
• Sir William Ramsey, a Scottish physicist, was the first to discover the noble gases' inert gases.

(D) Sir Humphry davy - (i) Safety Lamp

• Sir Humphry Davy devised the safety lamp in 1815.
• The safety lamp was created to allow miners to safely ignite the lamp without allowing the heat to explode harmful gas.

Column I	Column II
(A) Marie Curie	(iii) Nobel Prize Winner
(B) John dalton	(iv) Atomic theory
(C) William Ramsey	(ii) Helium
(D) Sir Humphry davy	(i) Safety Lamp