Assertion:  is 3-methyl butanoic acid. |
| Reason: In poly functional group, the substituent should be given lower number than the principal functional group. |
| Read the assertion and reason carefully to mark the correct option out of the options given below: |
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: B
Solution :
[c] As, the functional group is \[-COOH\], the numbering is done from RHS to give minimum number to carbon atom bearing the functional group. Rewriting the above structure \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,\,\,\,\,\,}{\mathop{CH-}}\,}}\,C{{H}_{2}}-COOH\]. The chain consists of four carbon atoms. Hence it?s a derivative of butane. The substituent is the methyl group. So the above compound is 3-methyl butanoic acid.
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