Question

1. Refining of petroleum is based on difference in
(a)boiling points (b) melting points
(c) freezing points (d) ignition
temperatures
2. which of the following are inexhaustible natural resources
(a)Air (b) sunlight (c) None (d)Both
3. By processing of coal in industry,
you get
(a) coal gas (b) coal tar (c) coke
(d) (a),(b) and (c)
4. The lowest boiling fraction of a
petroleum is found at the
(a)bottom of the fractionating tower
(b) middle of the fractionating tower
(c) top of the fractionating tower
(d) bottom of the fractionating tower as residue
5. Coal is obtained by decomposition of
(a) dead vegetation on the earth
(b) marine organisms under under the sea
(c) None (d) Both​

Answer 1

hey mate here is ur answer

1)a) boiling points

2)b)sunlight

3) d) a, b, c

4)c)top of the fractionating tower

5)a) dead vegetation on earth

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