1. Tardigrade
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  3. Chemistry
  4. The correct stability order for the following species is

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Q. The correct stability order for the following species isChemistry Question Image

AIIMSAIIMS 2016

Solution:

The correct order is $I > III > II > IV$
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$+M$ effect, hyperconjugation $(6 Hs )$ and $+I$ effect $(2- Me$ groups ) .
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$+M$ effect, hyperconjugation $(3Hs)$ and $+I$ effect $(1- Me$ group).
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Hyperconyjugation $(5Hs)$ and $+I$ effect.
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Hyperconjugation $(2Hs)$ and $+I$ effect.