Chemistry · 2020
JEE Main · 2 September 2020, Shift 1 · Q45
Consider the following reactions: (i) Glucose+ROH → dry HCl Acetal →[( CH_3 CO )_2 O ] x eq. of acetyl derivative (ii) Glucose → Ni / H_2 A →[( CH_3…
Consider the following reactions :
(i)
Glucose+ROH $\displaystyle \xrightarrow{\text { dry } \mathrm{HCl}}$ Acetal $\displaystyle \xrightarrow[\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}]{x \text { eq. of }}$ acetyl derivative
(ii)
Glucose $\displaystyle \xrightarrow{\mathrm{Ni} / \mathrm{H}_2} \mathrm{~A} \xrightarrow[\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}]{y \text { eq. of }}$ acetyl derivative
(iii)
Glucose $\displaystyle \xrightarrow[\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}]{z \text { eq. of }}$ acetyl derivative
' $\displaystyle x$ ', ' $\displaystyle y$ ' and ' $\displaystyle z$ ' in these reactions are respectively.
Official answer
(2)
$\displaystyle 4$, $\displaystyle 6$ & $\displaystyle 5$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.