Question

(Multiple choice questions
1. CO turns lime water milky because .............
A. calcium hydroxide is formed B. Calcium oxide is formed
C. Calcium carbonate is formed D. Calcium sulphate is formed
2. Molecular mass of CO is ............
A. 3
B. 14 C. 48 D. 44
.............is not a property of carbon dioxide.
A. Combustibility B. Heavier than air C. Soluble in water D. Odourless
4. Dry ice is obtained from CO, at ............temperature.
A. O
B. -56.6
C. -78.5
D. -109.3
5. The Statement ............is wrong regarding the use of CO,
A. Ecofriendly drycleaning
B. removal of caffene from coffee
C. Fire extinguisher
D. Purificants in petrolium
Questions
What are the uses of co in everyday life?​

Answer 1

Answer:

1 c) calcium carbonate is formed

2 if it is CO2 then the answer is d) 44,    but if it is CO , then the answer will be 28

3) a) combustibility

4 c) -78.5

Explanation: