Who was the first human space traveller?
- (A)Â Buzz Aldrin
- (B)Â Frank Borman
- (C)Â Yuri Gagarin
- (D)Â Gherman Titov
- (C)Â Yuri Gagarin
Which of the following is the lightest metal?
- (A)Â Mercury
- (B)Â Silver
- (C)Â Lithium
- (D)Â Lead
- (C)Â Lithium
Which gas is used in fire extinguishers to extinguish the fire?
- (A)Â Nitrogen
- (B)Â Neon
- (C)Â Carbon dioxide
- (D)Â Carbon monoxide
- (C)Â Carbon dioxide
Which of the following metals was first discovered by man?
- (A)Â Iron
- (B)Â Copper
- (C)Â Silver
- (D)Â Aluminum
- (B)Â Copper
Gas balloons and airships are filled with:
- (A)Â Helium
- (B)Â Hydrogen
- (C)Â Argon
- (D)Â Nitrogen
- (A)Â Helium
Which for mm of phosphorous is used in safety matches?
- (A)Â White phosphorous
- (B)Â Red phosphorous
- (C)Â Yellow phosphorous
- (D)Â Black phosphorous
- (B)Â Red phosphorous
The element common to all acids is:
- (A)Â Carbon
- (B)Â Hydrogen
- (C)Â Sulfur
- (D)Â Oxygen
- (B)Â Hydrogen
Which of the following is not a gland?
- (A)Â Stomach
- (B)Â Liver
- (C)Â Kidney
- (D)Â Pancreas
- (C)Â Kidney
Insulin is secreted by:
- (A)Â Spleen
- (B)Â Liver
- (C)Â Pancreas
- (D)Â Kidney
- (C)Â Pancreas
Wood is the main raw material for the manufacture of:
- (A)Â Paint
- (B)Â Paper
- (C)Â Ink
- (D)Â Gunpowder
- (B)Â Paper