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1
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
2
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is correct order of $$C-X$$ bond strength in $$\mathrm{CH}_3-X$$ ?

A
$$\mathrm{CH}_3 \mathrm{F}>\mathrm{CH}_3 \mathrm{Cl}>\mathrm{CH}_3 \mathrm{Br}>\mathrm{CH}_3 \mathrm{I}$$
B
$$\mathrm{CH}_3 \mathrm{Cl}>\mathrm{CH}_3 \mathrm{Br}>\mathrm{CH}_3 \mathrm{l}>\mathrm{CH}_3 \mathrm{~F}$$
C
$$\mathrm{CH}_3 \mathrm{I}>\mathrm{CH}_3 \mathrm{Br}>\mathrm{CH}_3 \mathrm{Cl}>\mathrm{CH}_3 \mathrm{~F}$$
D
$$\mathrm{CH}_3 \mathrm{F}>\mathrm{CH}_3 \mathrm{Br}>\mathrm{CH}_3 \mathrm{Cl}>\mathrm{CH}_3 \mathrm{I}$$
3
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

The reaction $$2 \mathrm{R}-\mathrm{Cl}+\mathrm{CoF}_2 \longrightarrow 2 \mathrm{R}-\mathrm{F}+\mathrm{CoCl}_2$$ is an example of ............... .

A
Swarts reaction
B
Sandmeyer's reaction
C
Wurtz-fittig reaction
D
Finkelstein reaction
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following methods is not suitable for the preparation of alkyl chlorides?

A
Addition of $$\mathrm{HCl}$$ to alkene
B
Treating alcohols with Lucas reagent
C
By heating alcohols with thionyl chloride
D
Chlorination of alkanes in presence of sunlight
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