46. Baking soda is a mixture of:
a) Sodium carbonate and acetic acid
b) Sodium carbonate and tartaric acid
c) Sodium hydrogen carbonate and tartaric acid
d) Sodium hydrogen carbonate and acetic acid
Explanation:
47. Which one of the following types of medicines is used for treating indigestion:
a) Antibiotic
b) Analgesic
c) Antacid
d) Antiseptic
Explanation:
48. Adding common salt to water will result in:
a) Increase in pH of water
b) Decrease in pH of water
c) No change in pH of water
d) Water gets warm
Explanation:
49. The IUPAC name of the given compound is:
CH3
CH3 —–|——CH3
CH3
a) 2-methyl butane
b) 2, 2dimethyl butane
c) 2,2-dimethyl propane
d) 2-ethyl, 2-methyl propane
Explanation:
50. Which of the following is used for dissolution of gold
a) Hydrochloric acid
b) Sulphuric acid
c) Nitric acid
d) Acquaragia
Explanation: