MCQ
Which one of the following has the minimum boiling point
- A$1-$Butene
- B$1-$Butyne
- C$n-$Butane
- ✓Isobutane
✓
Answer
Correct option: D.
Isobutane
d
(d)Among the isomeric alkanes, the normal isomer has a higher boiling point than the branched chain isomer. The greater the branching of the chain, the lower is the boiling point. The $n-$alkane have larger surface area in comparison to branched chain isomer (as the shape approaches that of a sphere in the branched chain isomers). Thus, intermolecular forces are weaker in branched chain isomers, there fore they have lower point in comparision to straight chain isomers.
(d)Among the isomeric alkanes, the normal isomer has a higher boiling point than the branched chain isomer. The greater the branching of the chain, the lower is the boiling point. The $n-$alkane have larger surface area in comparison to branched chain isomer (as the shape approaches that of a sphere in the branched chain isomers). Thus, intermolecular forces are weaker in branched chain isomers, there fore they have lower point in comparision to straight chain isomers.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
${H_3}P{O_3}$ is
→Select equations having endothermic step
→$(A)\,S_{\left( g \right)}^ - \,\, \to \,\,S_{\left( g \right)}^{2 - }\,$
$(B)\,Na_{\left( g \right)}^ + \, + \,Cl_{\left( g \right)}^ - \,\, \to \,\,NaCl\,(s)$
$(C)\,{N_{\left( g \right)}}\, \to \,\,N_{\left( g \right)}^ - $
$(D)\,Al_{\left( g \right)}^{2 + }\, \to \,\,Al_{\left( g \right)}^{3 + }$
$NaOH$ is a strong base because
→How many aldol products (excluding stereoisomers) are obtained in given reaction-
→$CH_3-CH_2-CHO \, + $ (image) $\xrightarrow[{0 - 5{}^ \circ C}]{{O\mathop H\limits^ \ominus }} \, ?$
The linear structure is assumed by
From the following which compound on heating readily sublimes
The product formed in the following multistep reaction is:
During the complete combustion of methane $CH_4$ , what change in hybridisation does the carbon atom undergo?
→The conjugate acid of $H_2PO_4^-$ is
→The major product of the following reaction is :
