- 1(current)
Q. No.Select the correct option based on statements below:
| Assertion (A): | It is difficult to replace chlorine with -OH in chlorobenzene in comparison to that in chloroethane. |
| Reason (R): | Chlorine carbon (—Cl) bond in chlorobenzene has a partial double bond character due to resonance. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe above reaction is known as:
1. Finkelstein reaction
2. Swarts reaction
3. Hunsdiecker reaction
4. HVZ reaction
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
| Assertion (A): | The presence of a nitro group at ortho or para position increases the reactivity of haloarenes towards nucleophilic substitution. |
| Reason (R): | The nitro group, being an electron-withdrawing group, decreases the electron density over the benzene ring. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOn sulphonation of C6H5Cl, the product obtained is-
1. m-Chlorobenzene sulphonic acid is formed
2. Benzene sulphonic acid is formed
3. o-Chlorobenzene sulphonic acid is formed
4. o-and p-Chlorobenzene sulphonic acid is formed
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA compound among the following with the maximum reactivity toward electrophilic aromatic substitution is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCompound among the following that can be used as
the halide component in the Friedel-Crafts reaction :
1. Chlorobenzene
2. Bromobenzene
3. Chloroethene
4. Isopropyl chloride
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
| Assertion (A): | Nitration of chlorobenzene leads to the formation of m-nitrochlorobenzene. |
| Reason (R): | —NO2 group is an m-directing group. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
| Assertion (A): | In monohaloarenes, further electrophilic substitution occurs at ortho and para positions. |
| Reason (R): | The halogen atom is a ring deactivator. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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