Question

Multiple Choice question (Choose the correct option)

(A) Which poisonous gas is formed as a result of incomplete combustion? (a) Coal Gas (b) Carbon Monoxide (c) Carbon Dioxide (d) Nitrogen Dioxide

(B) To extinguish a flame, which of these methods can be used? (a) Reduce temperature to below ignition temperature.

(b) Remove combustible substance

(c) Cut off air supply (d) Any one of these

The hottest zone of a candle flame is (a) Non Luminous Zone (b) Luminous Zone

(c) Dark Zone

(d) Blue Zone at the base of the wick

(D) Which of these is a solid pollutant?

(a) SPN (b) Carbon Monoxide (c) Nitrogen Dioxide (d) Sulphur Dio

(E) Which of these fuels has the (a) CNG (b) Coal

highest calorific value? (c) Hydrogen (d) Petrol​

Answer 1

1 C

2B

3C

I

Explanation:

i cant understand the others hope it helps

Answer 2

Answer:

1. hydrogen
2. bhbsusvw CV uubwnkw in m
3. mahjabin
4. no suhwnwu
5. nsishjs