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1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reaction is an example of Rosenmund reduction?

A
$$\mathrm{R}-\mathrm{CO}-\mathrm{R} \xrightarrow[\text { KoH, ethylene glycol }]{\mathrm{NH}_2-\mathrm{NH}_2, \Delta} \mathrm{R}-\mathrm{CH}_2-\mathrm{R}$$
B
$$\mathrm{R}-\mathrm{CHO} \xrightarrow[\Delta]{\mathrm{Zn}-\mathrm{Hg} / \text { conc. } \mathrm{HCl}} \mathrm{R}-\mathrm{CH}_3+\mathrm{H}_2 \mathrm{O}$$
C
$$\mathrm{R}-\mathrm{CO}-\mathrm{Cl} \xrightarrow[\text { Pd- } \mathrm{BaSO}_4]{\mathrm{H}_2} \mathrm{R}-\mathrm{CHO}+\mathrm{HCl}$$
D
$$\mathrm{R}-\mathrm{CN} \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{SnCl}_2 / \mathrm{Cl}} \mathrm{R}-\mathrm{CHO}+\mathrm{NH}_4 \mathrm{Cl}$$
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

To obtain 3-methylbutan-2-ol from acetaldehyde, the Grignard's reagent used is

A
CH$$_3$$MgBr
B
CH$$_3$$CH$$_2$$CH$$_2$$MgBr
C
CH$$_3$$CH$$_2$$MgBr
D
MHT CET 2021 24th September Morning Shift Chemistry - Aldehyde and Ketone Question 35 English Option 4
3
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following aldehyde has buttery odour?

A
Crotonaldehyde
B
Benzaldehyde
C
Butyraldehyde
D
Cinnamaldehyde
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify product B in following reaction.

Propanone $$\xrightarrow{\mathrm{Ba}(\mathrm{OH})_2} \mathrm{~A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}$$

A
2-Methylpentan-3-one
B
4-Hydroxy-4-methylpentan-2-one
C
4-Methylpent-3-en-2-one
D
2-Methylpent-2-en-4-one
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