1
MHT CET 2026 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following on reaction with Grignard's reagent followed by hydrolysis forms tertiary alcohol ?
A
$\text{HCHO}$
B
$\text{CH}_3\text{CHO}$
C
$\text{CH}_3\text{-CH}_2\text{-CHO}$
D
$\text{CH}_3 - \text{CO} - \text{CH}_3$
2
MHT CET 2026 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following reaction represents Rosenmund reduction ?
A
$\text{R}-\text{CO}-\text{Cl} \xrightarrow[\large{\text{Pd}-\text{BaSO}_4}]{\large{\text{H}_2}} \text{R}-\text{CHO} + \text{HCl}$
B
$\text{R}-\text{CN} \xrightarrow[\large{\text{H}_3\text{O}^+}]{\large{\text{SnCl}_2,\text{HCl}}} \text{R}-\text{CHO} + \text{NH}_4\text{Cl}$
C
$\text{R}-\text{CHO} \xrightarrow[\large{\Delta}]{\large{\text{Zn}-\text{Hg conc.HCl}}} \text{R}-\text{CH}_3 + \text{H}_2\text{O}$
D
$\text{R}-\text{CO}-\text{R} \xrightarrow[\large{\text{ii) KOH, HO}-\text{CH}_2-\text{CH}_2-\text{OH},\ \Delta}]{\large{\text{i) H}_2\text{N}-\text{NH}_2}} \text{R}-\text{CH}_2-\text{R}$
3
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the reagent used for Rosenmund reduction.

A

$\quad \mathrm{H}_2 / \mathrm{Ni}$

B

$\mathrm{H}_2 / \mathrm{Pd}, \mathrm{BaSO}_4$

C

$\mathrm{Na}-\mathrm{Hg} / \mathrm{H}_2 \mathrm{O}$

D

$\mathrm{SnCl}_2-\mathrm{H}_2 \mathrm{O}$

4
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the reaction so that carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with Zinc-amalgam and concentrated hydrochloric acid.

A

Wolf-Kishner reduction.

B

Stephan reaction.

C

Clemmensen reduction.

D

Etard reaction.

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