1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Identify the compound which gives an optically active haloalkane on reaction with $\mathrm{H}_2$ / Ni on heating.
| A | B | C | D |
|---|---|---|---|
 |
 |
 |
 |
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
Identify the final product formed when Toluene undergoes a series of reactions with reagents given in the order:
(i) $$\mathrm{Cl}_2$$ / Sunlight
(ii) $$\mathrm{H}_2 \mathrm{O} / 373 \mathrm{~K}$$
(iii) Acetophenone / $$\mathrm{OH^-}$$ at $$293 \mathrm{~K}$$
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
Arrange the following compounds in the increasing order of their reactivity when each of them is reacted with chloroethane / anhydrous AlCl$$_3$$.
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
Match the names of reactions given in Column I with the appropriate reactions given in Column II.
| No. | Name of reaction | No. | Equations representing reactions |
|---|---|---|---|
| (A) | Sandmeyer | (P) | $$ 2 \mathrm{C}_6 \mathrm{H}_5 \mathrm{Cl}+\mathrm{Na} \text { (dry ether) } \rightarrow \text { Diphenyl. } $$ |
| (B) | Fittig | (Q) | $$ \mathrm{CH}_3-\mathrm{CHBr}-\mathrm{CH}_3+\mathrm{AgF} \rightarrow \mathrm{CH}_3-\mathrm{CHF}-\mathrm{CH}_3+\mathrm{AgBr} $$ |
| (C) | Swarts | (R) | $$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Br}+\mathrm{Nal} \text { ( Acetone) } \rightarrow \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{I}+\mathrm{NaBr} $$ |
| (D) | Finkelstein | (S) | $$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{~N}_2+\mathrm{Cl}-+\mathrm{Cu}_2 \mathrm{Br}_2 / \mathrm{HBr} \rightarrow \mathrm{C}_6 \mathrm{H}_5 \mathrm{Br}+\mathrm{N}_2 $$ |
Questions Asked from Haloalkanes and Haloarenes (MCQ (Single Correct Answer))
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