If the pH value is lesser than 7, then solution is:
- (A) Alkaline
- (B) Acidic
- (C) Neutral
- (D) Reactive
- (B) Acidic
For neutralization of acidity of stomach, we are used:
- (A) Salt
- (B) Alkalis
- (C) Acid
- (D) Water
- (B) Alkalis
What is the chemical formula of calcium chloride?
- (A) CaCl2
- (B) CaCO4
- (C) CaCO3
- (D) NaHCO3
- (A) CaCl2
Solution in which water is used as a solvent are known as:
- (A) Universal solution
- (B) Homogenous solution
- (C) Aqueous solution
- (D) Mixed solution
- (C) Aqueous solution
The aqueous solution is _______ of electricity.
- (A) Bad conductor
- (B) Good conductor
- (C) Bad insulator
- (D) Good insulator
- (B) Good conductor
When acids react with carbonates giving:
- (A) Hydrogen
- (B) Nitrogen
- (C) Carbon dioxide
- (D) Salt & water
- (C) Carbon dioxide
When acids react with alkalis giving:
- (A) Carbon dioxide
- (B) Hydrogen
- (C) Salt & water
- (D) Nitrogen
- (C) Salt & water
Salts turn the litmus paper into which color?
- (A) Red
- (B) No change of color
- (C) Blue
- (D) Purple
- (B) No change of color
What is the pH value of acid rain?
- (A) Less than 5.6
- (B) More than 5.6
- (C) Equal to 7.7
- (D) More than 7.7
- (A) Less than 5.6
The name of the acid which is used to clean toilet is:
- (A) Acetic acid
- (B) Sulfuric acid
- (C) Nitric acid
- (D) Hydrochloric acid
- (D) Hydrochloric acid