Question

Q.1 MCQ:-
1. Which of these is not an inflammable substance?
a. LPG
b. CNG
c. Kerosene
d. Coal


2. Which of these is necessary for combustion to occur?
a. Presence of combustible substance
b. Presence of oxygen
c. Heating to ignition temperature
d. All of these


3. When we heat water in a paper bowl over a candle, the paper does not catch fire because
a. Paper is not inflammable
b. Paper gets wet
c. Due to water the ignition temperature of paper is not reached
d. This is not possible​

Answer 1

Answer:

1.CNG

2.all of these

3.paper is not flammable

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Answer 2

Answer:

CNG

Explanation:

compressed natural gas