324334
Assertion : Nitrobenzene does not undergo Fiedel Crafts alkylation. Reason : Nitrobenzene is used as solvent in laboratory and industry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Nitrobenzene is unreactive in Friedel-Crafts reactions due to the strong deactivating effect of the nitro group, which withdraws electrons, making the benzene ring less attractive to electrophiles. Given reason is true but not the actual explanation. So the option (2) is correct.
CHXII13:AMINES
324335
Assertion : \(1^{\circ}\) or \(2^{\circ}\) nitroalkanes dissolve in strong alkalies like \(\mathrm{NaOH}\) to form salts. Reason : Nitroalkanes are weakly acidic in nature.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Primary and secondary nitroalkanes exhibit weak acidity, allowing them to dissolve in strong alkalies like \(\mathrm{NaOH}\), forming salts through removal of \(\alpha\)-hydrogen by hydroxide ion and resonance stabilization of the resulting carbanion. So the option (1) is correct.
324334
Assertion : Nitrobenzene does not undergo Fiedel Crafts alkylation. Reason : Nitrobenzene is used as solvent in laboratory and industry.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Nitrobenzene is unreactive in Friedel-Crafts reactions due to the strong deactivating effect of the nitro group, which withdraws electrons, making the benzene ring less attractive to electrophiles. Given reason is true but not the actual explanation. So the option (2) is correct.
CHXII13:AMINES
324335
Assertion : \(1^{\circ}\) or \(2^{\circ}\) nitroalkanes dissolve in strong alkalies like \(\mathrm{NaOH}\) to form salts. Reason : Nitroalkanes are weakly acidic in nature.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Primary and secondary nitroalkanes exhibit weak acidity, allowing them to dissolve in strong alkalies like \(\mathrm{NaOH}\), forming salts through removal of \(\alpha\)-hydrogen by hydroxide ion and resonance stabilization of the resulting carbanion. So the option (1) is correct.
