Question

fultiple choice questions:
Combustion occurs readily in the presence of:
(a) nitrogen
(b) oxygen
(c) carbon dioxide (d) none of
The mixing of carbon monoxide with the blood inside our body leads to
(a) formation of carbon dioxide
(b) carbon monoxide poisoning
(c) stopping of supply of oxygen
(d) (a) and (c)
The burning of wood, coal, candle, etc., represents
combustion
(ay rapid
(b) slow
(c) spontaneous (d) none of
Coke is an example of
fuel.
(a) gaseous
(b) liquid
(c) solid
(d) it is not a
Which of the following types of fuel leaves residue after burning?
(Solid fuel
(b) Liquid fuel (c) Gaseous fuel (d) All of thes
Which of the following is the most useful form of coal containing more than 90% carbon
(a) Bituminous coal (b) Anthracite
(C) Lignite
(d) None of
y short answer questions:
Coal is a fossil fuel made of conbon
hydrogen and
and eigen
The word petroleum is derived from batso
and_______​

Answer 1

Answer:

1. (b) oxygen

2.(b) or (d)

3.(b) slow

4.(c) solid

5.(a) solid fuel

6.(b) anthracite

7. ___

8. The word petroleum is derived from - Petra (rock) and Oleum (oil)

Answer 2

Answer:

1.oxygen

2.stopping of supply of oxygen

3. slow

4.gas

5.solid fuels

6.Anthracite

7. oxygen