Acids, Bases and Salts

Mark ‘T’ if the statement is true and ‘F’ if it is false:

(i) Nitric acid turns red litmus blue. (T/F)

(ii) Sodium hydroxide turns blue litmus red. {T/F)

(iii) Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water. (T/F)

(id) Indicator is a substance which shows different colors in acidic and basic solutions. . (T/F)

(v) Tooth decay is caused by the presence of a base. (T/F)

• (1) F (ii) F (iii) T (iv) T (V) F

• (1) F (ii) F (iii) T (iv) T (V) T

• (1) F (ii) F (iii) F (iv) T (V) F

• (1) T (ii) F (iii) T (iv) T (V) F

Name the acid that is present fire extinguishers.

• Hydrochloric acid

• Nitric acids

• Sulphuric acid

________________ is a solution in which water is solvent? (all letter must be small and spelling must be correct.)

Pure rain is slightly acidic due to presence of which acid

• Acetic acid

• Carbonic acid

• Formic acid

• Amino acid

Tartaric acid (Acid present)

Name the food material.

• Tamarind

• Apple

• Orange

• Grapes

Water soluble bases are called.

(all letter must be small and spelling must be correct.)

Which acid are corrosive in nature.

(all letter must be small and spelling must be correct.)

Charged atoms or a group of charged atoms are called.

(all letter must be small and spelling must be correct.)

Who have high melting and boiling temperature.