Chemistry · 2013
Organic Chemistry: Some Basic Principles and TechniquesFundamental Concepts in Organic Reaction Mechanism
NEET 2013 · 18 May · Code Y · Q146
Arrange the following in increasing order of stability. (a) ( CH_3)_2 C - CH_2 CH_3 (b) ( CH_3)_3 C (c) ( CH_3)_2 C H (d) CH_3 C H_2 (e) C H_3
Arrange the following in increasing order of stability.
(a)
$\displaystyle \left(\mathrm{CH}_3\right)_2 \stackrel{\oplus}{\mathrm{C}}-\mathrm{CH}_2 \mathrm{CH}_3$
(b)
$\displaystyle \left(\mathrm{CH}_3\right)_3 \stackrel{\oplus}{\mathrm{C}}$
(c)
$\displaystyle \left(\mathrm{CH}_3\right)_2 \stackrel{\oplus}{\mathrm{C}} \mathrm{H}$
(d)
$\displaystyle \mathrm{CH}_3 \stackrel{\oplus}{\mathrm{C}} \mathrm{H}_2$
(e)
$\displaystyle \stackrel{\oplus}{\mathrm{C}} \mathrm{H}_3$
Official answer
(3)
e $\displaystyle <$ d $\displaystyle <$ c $\displaystyle <$ a $\displaystyle <$ b
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