Which of the following is the highest element of the periodic table?
- (A) Oxygen
- (B) Nitrogen
- (C) Hydrogen
- (D) Carbon dioxide
- (C) Hydrogen
Which of the following acids is called king of chemicals?
- (A) Hydro-chloric acid
- (B) Sulfuric acid
- (C) Nitric acid
- (D) Acetic acid
- (B) Sulfuric acid
Which of the following is used for silvering of mirrors?
- (A) Silver nitrate
- (B) Pitchblende
- (C) Silver oxide
- (D) Zinc nitrate
- (A) Silver nitrate
Liquids that evaporate quickly are known as ________ liquids.
- (A) Light
- (B) Viscous
- (C) Transient
- (D) Volatile
- (D) Volatile
The solid carbon dissolved at a temperature of -80°? is called:
- (A) Lithium
- (B) Dry Ice
- (C) Cesium
- (D) Hyper oxides
- (B) Dry Ice
Which of the following is the chief source of aluminum?
- (A) Feldspar
- (B) Cargolite
- (C) Bauxite
- (D) Hematite
- (C) Bauxite
The “Dolomite” is an important ore of:
- (A) Iron
- (B) Copper
- (C) Silver
- (D) Magnesium
- (D) Magnesium
What is the chemical composition of laughing gas?
- (A) Helium and Nitrogen
- (B) Nitrogen and Hydrogen
- (C) Nitrogen and Oxygen
- (D) Hydrogen and Oxygen
- (C) Nitrogen and Oxygen
Which of the following gases is used to manufacture of chloroform?
- (A) Radon
- (B) Methane
- (C) Ether
- (D) Propane
- (B) Methane
Which atom does not have a neutron?
- (A) Oxygen
- (B) Helium
- (C) Hydrogen
- (D) Nitrogen
- (C) Hydrogen
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