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CNG,LNG,LPG

When CNG unde...

Question

When CNG undergoes complete combustion, the products formed are:

C O_{2}

and

H_{2} O

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C O_{2}

S O_{2}

and

H_{2} O

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C O_{2}

only

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C O_{2}

C O

and

H_{2} O

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Solution

The correct option is A $C O_{2}$ and $H_{2} O$
The Complete Combustion of Natural Gas yields carbon dioxide and water. Complete combustion happens when the hydrocarbon burns in an excess of air. An excess of air means that there is more than enough oxygen to cause all of the carbon to turn into carbon dioxide.

The methane gas burns with a clear blue flame.

methane + oxygen $\to$ carbon dioxide + water + energy

$C H_{4} (g) + 2 O_{2} (g) \to C O_{2} (g) + 2 H_{2} O (l)$

The reaction is exothermic. The heat released from burning natural gas is used for central heating and to generate electricity.

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