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Question

Synthetic petrol is prepared by using a mixture of:
coal gas + $H_{2}$ gas
semi water gas
water gas + $H_{2}$ gas
carburatted water gas

A

coal gas +

H_{2}

gas

B

water gas +

H_{2}

gas

C

carburatted water gas

D

semi water gas

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Solution

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One of the most important process of producing synthetic fuels is the Bergius process.

In which, coal is heated with hydrogen gas to produce a mixture of hydrocarbons via the process of hydrogenation.

General reaction:
$n C + (n - x + 1) H_{2} \to C_{n} H_{2 n - 2 x + 2}$

where x is degree of unsaturation.

Synthetic fuel or synfuel is a liquid fuel, or sometimes gaseous fuel, obtained from syngas, a mixture of carbon monoxide and hydrogen, in which the syngas was derived from gasification of solid feedstocks such as coal or biomass or by reforming of natural gas.

Option A is correct.

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