MCQ
At $400\,K, 1\, mol$ of a hydrocarbon completely burned. It gives $132\, g$ of a gas along with $72\, g$ of water vapour then hydrocarbon may be
- A$CH_4$
- ✓$C_3H_8$
- C$C_2H_4$
- D$C_4H_{10}$
✓
Answer
Correct option: B.
$C_3H_8$
b
$\mathop {\mathop {{{\text{C}}_3}{{\text{H}}_8}({\text{g}})}\limits_{1{\mkern 1mu} {\text{mol}}} }\limits_{44\,g} + \mathop {5{{\text{O}}_2}({\text{g}})}\limits_{5{\mkern 1mu} {\text{mol}}\quad } \to \mathop {\mathop {3{\text{C}}{{\text{O}}_2}({\text{g}})}\limits_3 }\limits_{ = 132\,g} + \mathop {\mathop {4{{\text{H}}_2}{\text{O}}({\text{g}})}\limits_4 }\limits_{ = 72\,g} $
$\mathop {\mathop {{{\text{C}}_3}{{\text{H}}_8}({\text{g}})}\limits_{1{\mkern 1mu} {\text{mol}}} }\limits_{44\,g} + \mathop {5{{\text{O}}_2}({\text{g}})}\limits_{5{\mkern 1mu} {\text{mol}}\quad } \to \mathop {\mathop {3{\text{C}}{{\text{O}}_2}({\text{g}})}\limits_3 }\limits_{ = 132\,g} + \mathop {\mathop {4{{\text{H}}_2}{\text{O}}({\text{g}})}\limits_4 }\limits_{ = 72\,g} $
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