Bleaching action of moist Sulphur dioxide is because of:
- (A) Its basic property
- (B) Its acidic property
- (C) Its oxidizing property
- (D) Its reducing property
- (C) Its oxidizing property
X-rays are produced when a stream of electrons is X-ray tube:
- (A) Meet a thin ray of light
- (B) Strike a metal target
- (C) Hit the glass wall of the tube
- (D) Pass through a strong magnetic field
- (B) Strike a metal target
Which color is produced by Arsenic during flame test?
- (A) Red
- (B) Green
- (C) Blue
- (D) Crimson
- (C) Blue
What is ‘Bakelite’?
- (A) Solution
- (B) Acid
- (C) Base
- (D) Polymer
- (D) Polymer
The chemical name of bleaching powder is:
- (A) Calcium Carbonate
- (B) Calcium Oxychloride
- (C) Calcium Bicarbonate
- (D) Sodium bicarbonate
- (B) Calcium Oxychloride
Which of the following is the best insulator?
- (A) Carbon
- (B) Paper
- (C) Ebonite
- (D) Graphite
- (C) Ebonite
Which one of the following is the best insulator?
- (A) Paper
- (B) Wood
- (C) Glass
- (D) Cloth
- (C) Glass
Which of the following is the best insulator of heat?
- (A) Iron
- (B) Water
- (C) Nitrogen
- (D) Alcohol
- (C) Nitrogen
Which of the following is the best thermal insulator?
- (A) Aluminum
- (B) Air
- (C) Iron
- (D) Water
- (B) Air
Neoprene is a polymer of:
- (A) Chloroprene
- (B) Isoprene
- (C) Butane
- (D) Pentane
- (A) Chloroprene
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