Which states of matter cannot be compressed at all?
- (A) Liquids
- (B) Solids
- (C) Semi-solids
- (D) Gases
- (B) Solids
The gas usually filled in electric bulb is:
- (A) Argon
- (B) Hydrogen
- (C) Helium
- (D) Oxygen
- (A) Argon
Which of the following gases is used in illuminating?
- (A) Methane
- (B) Neon
- (C) Ammonia
- (D) Nitrogen
- (A) Methane
Air is a/an:
- (A) Compound
- (B) Element
- (C) Mixture
- (D) Electrolyte
- (C) Mixture
Which of the following is the cleanest source of energy?
- (A) Bio-fuel
- (B) Fossil fuel
- (C) Nuclear power
- (D) Wind energy
- (D) Wind energy
Which of the following vitamin helps in blood clotting?
- (A) Vitamin A
- (B) Vitamin C
- (C) Vitamin D
- (D) Vitamin K
- (D) Vitamin K
According to Faraday’s Law, “EMF” stands for:
- (A) Electromagnetic field
- (B) Electromagnetic friction
- (C) Electromotive force
- (D) Electromotive field
- (C) Electromotive force
Which of the following gases is known as illuminating gas?
- (A) Ethane
- (B) Ethene
- (C) Ethyne
- (D) Propane
- (C) Ethyne
In firework, the green color is produced due to:
- (A) Sodium
- (B) Barium
- (C) Mercury
- (D) Potassium
- (B) Barium
Which of the following is the most soluble in water?
- (A) Sugar
- (B) Sulfur
- (C) Common salt
- (D) Camphor
- (A) Sugar