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1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is NOT correct statement about $$\mathrm{S_N1}$$ reaction?

A
A more powerful nucleophile favours $$\mathrm{S_N1}$$ mechanism.
B
$$\mathrm{S_N1}$$ reaction proceeds via formation of carbocation intermediate.
C
$$\mathrm{S_N1}$$ reaction proceeds more rapidly in polar protic solvent.
D
The rate of $$\mathrm{S_N1}$$ mechanism is independent of the nature of nucleophile.
2
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is least reactive towards $\mathrm{S}_{\mathrm{N}} 1$ reactions?

A
$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Br}$
B
$\mathrm{CH}_3-\mathrm{CH}(\mathrm{Br})-\mathrm{CH}_3$
C
$\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{Br}$
D
$\mathrm{CH}_3-\mathrm{Br}$
3
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the name of reaction involving replacement of diazonium group by chloride using cuprous (I) salt ?

A
Wolff -Kishner reduction
B
Sandmeyer's reaction
C
Balz Schiemann reaction
D
Friedel Craft's reaction
4
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following pairs of aryl halides cannot be prepared directly by electrophilic substitution?

A
Aryl chloride and aryl bromide
B
Aryl fluoride and aryl chloride
C
Aryl bromide and aryl iodide
D
Aryl iodide and aryl fluoride
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