Which plant is used in the treatment of blood pressure?
- (A) Cinchona
- (B) Garlic
- (C) Dhatura
- (D) Serpentina
- (D) Serpentina
Which chemical is used for preserving fruit juices?
- (A) Ammonium sulfate
- (B) Sodium hydroxide
- (C) Sodium benzoate
- (D) Potassium nitrate
- (C) Sodium benzoate
Which of the following mineral is used in cement industry and plaster of Paris?
- (A) Marble
- (B) China clay
- (C) Fire clay
- (D) Gypsum
- (D) Gypsum
Which of the following is used in beauty parlors for hair setting?
- (A) Silicon
- (B) Cobalt
- (C) Sulfur
- (D) Bromine
- (C) Sulfur
Horns of most mammals are composed of:
- (A) Bones
- (B) Chitin
- (C) Keratin
- (D) Cartilage
- (C) Keratin
Silk is produced by ______ of silkworm.
- (A) Larva
- (B) Egg
- (C) Pupa
- (D) Embryo
- (A) Larva
From which stage of “silk moth” is silk obtained?
- (A) Larva
- (B) Pupa
- (C) Adult
- (D) Cocoon
- (D) Cocoon
The dress made out of which material is the safest to wear while cooking?
- (A) Silk
- (B) Nylon
- (C) Cotton
- (D) Terelene
- (C) Cotton
What kind of clothes should not be worn while cooking?
- (A) Rayon
- (B) Silk
- (C) Polyester
- (D) Cotton
- (C) Polyester
The element required for solar energy conversion is:
- (A) Beryllium
- (B) Silicon
- (C) Tantalum
- (D) Titanium
- (B) Silicon
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