NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL ORGANIC CHEMISTRY
231551
Which of the following species is an electrophile?
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{NH}_{3}$
3 $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
4 $\mathrm{SO}_{3}$
Explanation:
$\mathrm{H}_{2} \ddot{\mathrm{O}} \rightarrow$ It have lone pair $\mathrm{e}^{\ominus}$ hence it is nucleophile $\mathrm{NH}_{3} \rightarrow$ It have lone pair electron. Hence it is nucleo phile. $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH} \rightarrow$ It have lone pair and $+\mathrm{I}$ effect Hence it is nucleophile. $\mathrm{SO}_{3} \rightarrow$ It have vacant d-orbital hence it is electrophile.
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231554
Identify the functional group that has electron donating inductive effect.
1 $-\mathrm{COOH}$
2 $-\mathrm{CN}$
3 $-\mathrm{CH}_{3}$
4 $-\mathrm{NO}_{2}$
Explanation:
When these functional group attached by benzene ring then Hence $-\mathrm{CH}_{3}$ is a electron donating inductive effect. Thus 'c' option is correct.
MHT CET-2018
GENERAL ORGANIC CHEMISTRY
231555
Which one is the most acidic compound?
1
2
3
4
Explanation:
-I- effective group increase the acidity. Higher the -I- effective group higher is the acidity. $+\mathrm{I}-$ effect decrease the acidity delocalisation of phenoride ion also increase the acidity of phenol. Therefore, 2,4,6trinitro phenol is most acidic. Hence 'c' obtion is correct. The order of acidity is-
NEET 2017
GENERAL ORGANIC CHEMISTRY
231557
Which of the following will be most stable diazonium salt $\mathrm{RN}_{2}^{+} \mathbf{X}^{-}$?
The benzene diazonium salt is most stable because its $(+)$ charge delocalized in benzene ring. Hence benzene diazonium salt is most stable. The order of stability is -
231551
Which of the following species is an electrophile?
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{NH}_{3}$
3 $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
4 $\mathrm{SO}_{3}$
Explanation:
$\mathrm{H}_{2} \ddot{\mathrm{O}} \rightarrow$ It have lone pair $\mathrm{e}^{\ominus}$ hence it is nucleophile $\mathrm{NH}_{3} \rightarrow$ It have lone pair electron. Hence it is nucleo phile. $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH} \rightarrow$ It have lone pair and $+\mathrm{I}$ effect Hence it is nucleophile. $\mathrm{SO}_{3} \rightarrow$ It have vacant d-orbital hence it is electrophile.
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231554
Identify the functional group that has electron donating inductive effect.
1 $-\mathrm{COOH}$
2 $-\mathrm{CN}$
3 $-\mathrm{CH}_{3}$
4 $-\mathrm{NO}_{2}$
Explanation:
When these functional group attached by benzene ring then Hence $-\mathrm{CH}_{3}$ is a electron donating inductive effect. Thus 'c' option is correct.
MHT CET-2018
GENERAL ORGANIC CHEMISTRY
231555
Which one is the most acidic compound?
1
2
3
4
Explanation:
-I- effective group increase the acidity. Higher the -I- effective group higher is the acidity. $+\mathrm{I}-$ effect decrease the acidity delocalisation of phenoride ion also increase the acidity of phenol. Therefore, 2,4,6trinitro phenol is most acidic. Hence 'c' obtion is correct. The order of acidity is-
NEET 2017
GENERAL ORGANIC CHEMISTRY
231557
Which of the following will be most stable diazonium salt $\mathrm{RN}_{2}^{+} \mathbf{X}^{-}$?
The benzene diazonium salt is most stable because its $(+)$ charge delocalized in benzene ring. Hence benzene diazonium salt is most stable. The order of stability is -
231551
Which of the following species is an electrophile?
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{NH}_{3}$
3 $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
4 $\mathrm{SO}_{3}$
Explanation:
$\mathrm{H}_{2} \ddot{\mathrm{O}} \rightarrow$ It have lone pair $\mathrm{e}^{\ominus}$ hence it is nucleophile $\mathrm{NH}_{3} \rightarrow$ It have lone pair electron. Hence it is nucleo phile. $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH} \rightarrow$ It have lone pair and $+\mathrm{I}$ effect Hence it is nucleophile. $\mathrm{SO}_{3} \rightarrow$ It have vacant d-orbital hence it is electrophile.
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231554
Identify the functional group that has electron donating inductive effect.
1 $-\mathrm{COOH}$
2 $-\mathrm{CN}$
3 $-\mathrm{CH}_{3}$
4 $-\mathrm{NO}_{2}$
Explanation:
When these functional group attached by benzene ring then Hence $-\mathrm{CH}_{3}$ is a electron donating inductive effect. Thus 'c' option is correct.
MHT CET-2018
GENERAL ORGANIC CHEMISTRY
231555
Which one is the most acidic compound?
1
2
3
4
Explanation:
-I- effective group increase the acidity. Higher the -I- effective group higher is the acidity. $+\mathrm{I}-$ effect decrease the acidity delocalisation of phenoride ion also increase the acidity of phenol. Therefore, 2,4,6trinitro phenol is most acidic. Hence 'c' obtion is correct. The order of acidity is-
NEET 2017
GENERAL ORGANIC CHEMISTRY
231557
Which of the following will be most stable diazonium salt $\mathrm{RN}_{2}^{+} \mathbf{X}^{-}$?
The benzene diazonium salt is most stable because its $(+)$ charge delocalized in benzene ring. Hence benzene diazonium salt is most stable. The order of stability is -
231551
Which of the following species is an electrophile?
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{NH}_{3}$
3 $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
4 $\mathrm{SO}_{3}$
Explanation:
$\mathrm{H}_{2} \ddot{\mathrm{O}} \rightarrow$ It have lone pair $\mathrm{e}^{\ominus}$ hence it is nucleophile $\mathrm{NH}_{3} \rightarrow$ It have lone pair electron. Hence it is nucleo phile. $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH} \rightarrow$ It have lone pair and $+\mathrm{I}$ effect Hence it is nucleophile. $\mathrm{SO}_{3} \rightarrow$ It have vacant d-orbital hence it is electrophile.
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231554
Identify the functional group that has electron donating inductive effect.
1 $-\mathrm{COOH}$
2 $-\mathrm{CN}$
3 $-\mathrm{CH}_{3}$
4 $-\mathrm{NO}_{2}$
Explanation:
When these functional group attached by benzene ring then Hence $-\mathrm{CH}_{3}$ is a electron donating inductive effect. Thus 'c' option is correct.
MHT CET-2018
GENERAL ORGANIC CHEMISTRY
231555
Which one is the most acidic compound?
1
2
3
4
Explanation:
-I- effective group increase the acidity. Higher the -I- effective group higher is the acidity. $+\mathrm{I}-$ effect decrease the acidity delocalisation of phenoride ion also increase the acidity of phenol. Therefore, 2,4,6trinitro phenol is most acidic. Hence 'c' obtion is correct. The order of acidity is-
NEET 2017
GENERAL ORGANIC CHEMISTRY
231557
Which of the following will be most stable diazonium salt $\mathrm{RN}_{2}^{+} \mathbf{X}^{-}$?
The benzene diazonium salt is most stable because its $(+)$ charge delocalized in benzene ring. Hence benzene diazonium salt is most stable. The order of stability is -
