Question

-*- Multiple Choice Questions -*-
1) CO2 turns lime water milky because ......
a) Calcium carbonate is formed
b) Calcium oxide is formed
c) Calcium hydroxide is formed d) Calcium sulphate is formed
2) Which acid is formed with CO2 dissolves in water
a) Lactic acid b) Hydrochloric acid c) Carbonic acid d) Acetic acid
3) Dryice is obtained from CO2 at ............... temperature.
a) 0 b) -56.6 c) -78.5 d) –109.3
33​

Answer 1

Answer:

1 B , 2 B , 3 C if it helps you please like it or any correction do comment

Answer 2

Answer:

1] CO2 turns lime water milky because a) Calcium carbonate is formed.

2] c) carbonic acid 【H2CO3】.

3] b) -56.6.