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Which of the following has maximum stand...

Which of the following has maximum standard enthalpy of combustion per gram?

A

`C_(3) H_(8)`

B

`C_(4) H_(10)`

C

`C_(2) H_(4)`

D

`C_(2) H_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
During combustion. `C` is oxidized to `CO_(2)` and `H` is oxidized to `H_(2) O`. Thus, saturated hydrocarbons have higher caloriffic values than the corresponding unsaturated hydrocarbons. More the number of `C` and `H` atoms, greater is the calorific value.
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