Question

A. Choose the correct option.
1. Which of these takes place in sufficient amount of air or oxygen?
b. Incomplete combustion
a. Complete combustion
c. Rapid combustion
d. Explosion
2. Which of the following is not an essential condition for combustion?
a. Combustible substance
b. attainment of ignition temperature
c. Fire extinguisher
d. Supporter of combustion
3. The coolest zone of a candle flame
a. Inner zone
b. Middle zone
c. Outer zone
4. Which of the following fuel has the highest calorific value?
a. LPG
b. Hydrogen
d. Diesel
d. Green zone
c. Petrol
5. Which of these has the lowest carbon content?
d. Coke
a. Anthracite
b. Bituminous coal
c. Lignite
6. Which of the following is not a petroleum product?
a. Petrol
b. Diesel
c. Hydrogen
d. kerosene​

Answer 1

Answer:

Complete combustion

Explanation:

if you take oxygen in the body the body needs more oxygen

Answer 2

Answer:

1 Complete Combustion

2 Fire Extinguisher

3 Inner Zone

4 LPG

5 Lignite

6 Hydrogen