40
Subjective
Match the reagent from Column I which on reaction with $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2$ gives some product given in Column II as per the codes given below
| Column I | Column II | ||
|---|---|---|---|
| A. | $\mathrm{O}_3 / \mathrm{Zn}+\mathrm{H}_2 \mathrm{O}$ | 1. | Acetic acid and $\mathrm{CO}_2$ |
| B. | $\mathrm{KMnO}_4 / \mathrm{H}^{+}$ | 2. | Propan-1-ol |
| C. | $\mathrm{KMnO}_4 / \mathrm{OH}^{-}$ | 3. | Propan-2-ol |
| D. | $\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}$ | 4. | Acetaldehyde and formaldehyde |
| E. | $\mathrm{B}_2 \mathrm{H}_6 / \mathrm{NaOH}^{+}$and $\mathrm{H}_2 \mathrm{O}_2$ | 5. | Propane-1, 2-diol |
Explanation
A. $\rightarrow$ (4)
B. $\rightarrow$ (1)
C. $\rightarrow$ (5)
D. $\rightarrow(3)$
E. $\rightarrow(2)$
| Column I | Column II | ||
|---|---|---|---|
| A. | $\mathrm{O}_3 / \mathrm{Zn}+\mathrm{H}_2 \mathrm{O}$ | 1. |  |
| B. | $\mathrm{KMnO}_4 / \mathrm{H}^{+}$ | 2. | $\mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\mathrm{H}^{+}]{\mathrm{KMnO}_4} \underset{\text { Aceticacid }}{\mathrm{CH}_3 \mathrm{COOH}}+\mathrm{CO}_2$ |
| C. | $\mathrm{KMnO}_4 / \mathrm{OH}^{-}$ | 3. |  |
| D. | $\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}$ | 4. | $\mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\text { (Markn addition) }]{\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}} \underset{\text { Propan-2-ol }}{\mathrm{CH}_3-\mathrm{CH}(\mathrm{OH})-\mathrm{CH}_3}$ |
| E. | $\mathrm{B}_2 \mathrm{H}_6 / \mathrm{NaOH}^{+}$and $\mathrm{H}_2 \mathrm{O}_2$ | 5. |  |
41
Subjective
Match the hydrocarbons in Column I with the boiling points given in Column II.
| Column I | Column II | ||
|---|---|---|---|
| A. | n-pentane | 1. | 282.5 K |
| B. | iso-pentane | 2. | 309 K |
| C. | neo-pentane | 3. | 301 K |
Explanation
A - (2), B - (3), C - (1)
| Column I | Column II | ||
|---|---|---|---|
| A. | n-pentane | 1. | 309 K due to no branch |
| B. | iso-pentane | 2. | 301 K due to one branch |
| C. | neo-pentane | 3. | 282.5 K due to two branches |
42
Subjective
Match the following reactants in Column I with the corresponding reaction products in Column II.
| Column I | Column II | ||
|---|---|---|---|
| A. | Benzene $+\mathrm{Cl}_2 \xrightarrow{\mathrm{AlCl}_3}$ | 1. | Benzoic acid |
| B. | Benzene $+\mathrm{CH}_3 \mathrm{Cl} \xrightarrow{\mathrm{AlCl}_3}$ | 2. | Methyl phenyl ketone |
| C. | Benzene $+\mathrm{CH}_3 \mathrm{COCl} \xrightarrow{\mathrm{AlCl}_3}$ | 3. | Toluene |
| D. | Toluene $\xrightarrow{\mathrm{KMnO}_4 / \mathrm{NaOH}}$ | 4. | Chlorobenzene |
| 5. | Benzene hexachloride |
Explanation
A - (4), B - (3), C - (2), D - (1)
| Reactants | Products | |
|---|---|---|
| A. | Benzene $+\mathrm{Cl}_2 \xrightarrow{\mathrm{AlCl}_3}$ |  |
| B. | Benzene $+\mathrm{CH}_3 \mathrm{Cl} \xrightarrow{\mathrm{AlCl}_3}$ |  |
| C. | Benzene $+\mathrm{CH}_3 \mathrm{COCl} \xrightarrow{\mathrm{AlCl}_3}$ |  |
| D. | Toluene $\xrightarrow{\mathrm{KMnO}_4 / \mathrm{NaOH}}$ |  |
43
Subjective
Match the reactions given in Column I with the reaction types in Column II.
| Column I | Column II | ||
|---|---|---|---|
| A. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{H}_2 \mathrm{O} \xrightarrow{\mathrm{H}^{+}} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}$ | 1. | Hydrogenation |
| B. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{H}_2 \xrightarrow{\mathrm{Pd}} \mathrm{CH}_3-\mathrm{CH}_3$ | 2. | Halogenation |
| C. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{Cl}_2 \longrightarrow \mathrm{Cl}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}$ | 3. | Polymerisation |
| D. | $3 \mathrm{CH} \equiv \equiv\mathrm{CH} \xrightarrow[\text { Heat }]{\text { Cutube }} \mathrm{C}_6 \mathrm{H}_6$ | 4. | Hydration |
| 5. | Condensation |
Explanation
A - (4), B - (1), C - (2), D - (3)
| Reactions | Types of reaction | |
|---|---|---|
| A. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{H}_2 \mathrm{O} \xrightarrow{\mathrm{H}^{+}} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}$ | Hydration Addition of water |
| B. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{H}_2 \xrightarrow{\mathrm{Pd}} \mathrm{CH}_3-\mathrm{CH}_3$ | Hydrogenation Addition of hydrogen |
| C. | $\mathrm{CH}_2==\mathrm{CH}_2+\mathrm{Cl}_2 \longrightarrow \mathrm{Cl}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}$ | Halogenation Addition of halogen |
| D. | $3 \mathrm{CH} \equiv \equiv\mathrm{CH} \xrightarrow[\text { Heat }]{\text { Cutube }} \mathrm{C}_6 \mathrm{H}_6$ | Polymerisation |
 |
44
MCQ (Single Correct Answer)
Assertion (A) The compound tetraene has the following structural formula.
It is cyclic and has conjugated $8 \pi$-electron system but it is not an aromatic compound. Reason (R) $(4 n+2) \pi$ electrons rule does not hold good and ring is not planar.
A
Both A and R are correct and R is the correct explanation of A
B
Both $A$ and $R$ are correct but $R$ is not the correct explanation of $A$
C
Both A and R are not correct
D
A is not correct but R is correct