TNPSC Chemistry Questions and Answers in English Pdf - 2

Question: 6

Which of the following is used as an anti freezing substance in the self-starting engines?

(A) Methanol

(B) Ethylene glycol

(C) Ethanol

(D) Propyl alcohol

Question: 7

Which of the following compounds are responsible for “acid rain”?

(A) Nitrogen dioxide

(B) Sulphur dioxide

(C) Both (a) and (b)

(D) None of the above

Question: 8

Which one of the following types of glass can cut off ultraviolet rays?

(A) Crookes glass

(B) Jena glass

(C) Pyrex glass

(D) Soda glass

Question: 9

Monazite is an ore of

(A) Iron

(B) Titanium

(C) Thorium

(D) Zarconium

Question: 10

Long distance photography is facilitated by

(A) Ultraviolet rays

(B) Infrared rays

(C) X-rays

(D) Visible light