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NEET 2024
Exam
NEET
Year
2024
Subject
Chemistry
Chapter
Hydrocarbons

NEET 2024 · Chemistry · Hydrocarbons

The alkane that can be oxidized to the corresponding alcohol by...

The alkane that can be oxidized to the corresponding alcohol by KMnO4\mathrm{KMnO}_4 as per the equation The alkane that can be oxidized to the corresponding alcohol by KMnO_4 as per the equation is, when:
is, when:

Options

  1. AR1=H;R2=H;R3=H\mathrm{R}_1=\mathrm{H} ; \mathrm{R}_2=\mathrm{H} ; \mathrm{R}_3=\mathrm{H}
  2. BR1=CH3;R2=CH3;R3=CH3\mathrm{R}_1=\mathrm{CH}_3 ; \mathrm{R}_2=\mathrm{CH}_3 ; \mathrm{R}_3=\mathrm{CH}_3
  3. CR1=CH3;R2=H;R3=H\mathrm{R}_1=\mathrm{CH}_3 ; \mathrm{R} 2=\mathrm{H} ; \mathrm{R}_3=\mathrm{H}
  4. DR1=CH3;R2=CH3;R3=H\mathrm{R}_1=\mathrm{CH}_3 ; \mathrm{R}_2=\mathrm{CH}_3 ; \mathrm{R}_3=\mathrm{H}

Correct answer

B. R1=CH3;R2=CH3;R3=CH3\mathrm{R}_1=\mathrm{CH}_3 ; \mathrm{R}_2=\mathrm{CH}_3 ; \mathrm{R}_3=\mathrm{CH}_3

Step-by-step solution

Generally alkanes resist oxidation but alkane with tertiary H atom(s) can be oxidised to corresponding alcohols by KMnO4\mathrm{KMnO}_4 The alkane that can be oxidized to the corresponding alcohol by KMnO_4 as per the equation is, when:
∴R1⇒CH3R2⇒CH3R3⇒CH3\therefore \mathrm{R}_1 \Rightarrow \mathrm{CH}_3 \quad \mathrm{R}_2 \Rightarrow \mathrm{CH}_3 \quad \mathrm{R}_3 \Rightarrow \mathrm{CH}_3
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