The chemical formula for Methane is:
- (A) CH8
- (B) CH6
- (C) CH4
- (D) CH2
- (C) CH4
Which color comes between orange and green in a rainbow?
- (A) Blue
- (B) Red
- (C) Indigo
- (D) Yellow
- (D) Yellow
The lowest color in a rainbow is:
- (A) Indigo
- (B) Violet
- (C) Blue
- (D) Green
- (B) Violet
The hottest part of gas flame is known as the:
- (A) Dark zone
- (B) Blue zone
- (C) Luminous zone
- (D) Non-luminous zone
- (B) Blue zone
Which is the least hot part in the gasflame?
- (A) Blue zone
- (B) Luminous zone
- (C) Dark zone
- (D) Non-luminous zone
- (C) Dark zone
What does “Gobar Gas” contain?
- (A) Butane
- (B) Octane
- (C) Methane
- (D) Propane
- (C) Methane
The acid destroys vegetation because it contains:
- (A) Ultraviolet rays
- (B) Sulfuric acid
- (C) Nitric acid
- (D) Carbon dioxide
- (B) Sulfuric acid
Which of the following substances has the highest specific heat?
- (A) Iron
- (B) Copper
- (C) Mercury
- (D) Water
- (D) Water
What color is made by mixing green with yellow?
- (A) Coral
- (B) Pale
- (C) Lime
- (D) Lilac
- (C) Lime
Wood is the raw material for the manufacture of:
- (A) Paint
- (B) Papers
- (C) Ink
- (D) Gun powder
- (B) Papers
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