231605
Which one of the following has the highest nucleophilicity?
1 $\mathrm{OH}^{-}$
2 $\mathrm{CH}_{3}^{-}$
3 $\mathrm{NH}_{2}^{-}$
4 $\mathrm{F}^{-}$
Explanation:
That nucleophile which have no any -I effective group, is strongest nucleophile. Therefore $\mathrm{CH}_{3}^{\ominus}$ have highest nucleophilicity. Hence (b) option is correct. The order of nucleophilicity is- $\mathrm{CH}_{3}^{\ominus}>\mathrm{N}^{\ominus} \mathrm{H}_{2}>\mathrm{O}^{\ominus} \mathrm{H}>\mathrm{F}^{\ominus}$
UPTU/ UPSEE-2017
GENERAL ORGANIC CHEMISTRY
231606
The nature of 2,4,6-trinitrophenol is
1 neutral
2 basic
3 acidic
4 weak basic
Explanation:
The structure of 2,4,6-trinitro phenol is It is also known as picric acid. It is acidic in nature and it is very strong acid because it have $3-\mathrm{NO}_{2}$ group which pull the $-\mathrm{O}-\mathrm{H}$ electron towards itself and benzene ring also delocalized. Therefore its $\mathrm{pK}_{\mathrm{a}}$ value is 0.78 , which is very low. Hence 'c' option is correct.
MHT CET-2012
GENERAL ORGANIC CHEMISTRY
231607
Which of the following is the strongest base?
1
2
3
4
Explanation:
+I effect increase the basicity and delocalization decrease. In benzyl amine the benzene ring is not directly attached to benzene. Hence its basicity is higher than the other. Hence ' $d$ ' option is correct. The order of basicity is-
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231610
Which of the following represents the correct order of the acidity in the given compound?
I-effect increase the acidity and $+\mathrm{I}$ effect decrease the acidity. If electronegativity is high the effect of-I effective group is increase. Therefore the order of acidity is- $\mathrm{CH}_{3} \mathrm{COOH}<\mathrm{BrCH}_{2} \mathrm{COOH}<\mathrm{ClCH}_{2} \mathrm{COOH}<$ $\mathrm{FCH}_{2} \mathrm{COOH}$ Hence, option 'b' is correct
NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL ORGANIC CHEMISTRY
231605
Which one of the following has the highest nucleophilicity?
1 $\mathrm{OH}^{-}$
2 $\mathrm{CH}_{3}^{-}$
3 $\mathrm{NH}_{2}^{-}$
4 $\mathrm{F}^{-}$
Explanation:
That nucleophile which have no any -I effective group, is strongest nucleophile. Therefore $\mathrm{CH}_{3}^{\ominus}$ have highest nucleophilicity. Hence (b) option is correct. The order of nucleophilicity is- $\mathrm{CH}_{3}^{\ominus}>\mathrm{N}^{\ominus} \mathrm{H}_{2}>\mathrm{O}^{\ominus} \mathrm{H}>\mathrm{F}^{\ominus}$
UPTU/ UPSEE-2017
GENERAL ORGANIC CHEMISTRY
231606
The nature of 2,4,6-trinitrophenol is
1 neutral
2 basic
3 acidic
4 weak basic
Explanation:
The structure of 2,4,6-trinitro phenol is It is also known as picric acid. It is acidic in nature and it is very strong acid because it have $3-\mathrm{NO}_{2}$ group which pull the $-\mathrm{O}-\mathrm{H}$ electron towards itself and benzene ring also delocalized. Therefore its $\mathrm{pK}_{\mathrm{a}}$ value is 0.78 , which is very low. Hence 'c' option is correct.
MHT CET-2012
GENERAL ORGANIC CHEMISTRY
231607
Which of the following is the strongest base?
1
2
3
4
Explanation:
+I effect increase the basicity and delocalization decrease. In benzyl amine the benzene ring is not directly attached to benzene. Hence its basicity is higher than the other. Hence ' $d$ ' option is correct. The order of basicity is-
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231610
Which of the following represents the correct order of the acidity in the given compound?
I-effect increase the acidity and $+\mathrm{I}$ effect decrease the acidity. If electronegativity is high the effect of-I effective group is increase. Therefore the order of acidity is- $\mathrm{CH}_{3} \mathrm{COOH}<\mathrm{BrCH}_{2} \mathrm{COOH}<\mathrm{ClCH}_{2} \mathrm{COOH}<$ $\mathrm{FCH}_{2} \mathrm{COOH}$ Hence, option 'b' is correct
231605
Which one of the following has the highest nucleophilicity?
1 $\mathrm{OH}^{-}$
2 $\mathrm{CH}_{3}^{-}$
3 $\mathrm{NH}_{2}^{-}$
4 $\mathrm{F}^{-}$
Explanation:
That nucleophile which have no any -I effective group, is strongest nucleophile. Therefore $\mathrm{CH}_{3}^{\ominus}$ have highest nucleophilicity. Hence (b) option is correct. The order of nucleophilicity is- $\mathrm{CH}_{3}^{\ominus}>\mathrm{N}^{\ominus} \mathrm{H}_{2}>\mathrm{O}^{\ominus} \mathrm{H}>\mathrm{F}^{\ominus}$
UPTU/ UPSEE-2017
GENERAL ORGANIC CHEMISTRY
231606
The nature of 2,4,6-trinitrophenol is
1 neutral
2 basic
3 acidic
4 weak basic
Explanation:
The structure of 2,4,6-trinitro phenol is It is also known as picric acid. It is acidic in nature and it is very strong acid because it have $3-\mathrm{NO}_{2}$ group which pull the $-\mathrm{O}-\mathrm{H}$ electron towards itself and benzene ring also delocalized. Therefore its $\mathrm{pK}_{\mathrm{a}}$ value is 0.78 , which is very low. Hence 'c' option is correct.
MHT CET-2012
GENERAL ORGANIC CHEMISTRY
231607
Which of the following is the strongest base?
1
2
3
4
Explanation:
+I effect increase the basicity and delocalization decrease. In benzyl amine the benzene ring is not directly attached to benzene. Hence its basicity is higher than the other. Hence ' $d$ ' option is correct. The order of basicity is-
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231610
Which of the following represents the correct order of the acidity in the given compound?
I-effect increase the acidity and $+\mathrm{I}$ effect decrease the acidity. If electronegativity is high the effect of-I effective group is increase. Therefore the order of acidity is- $\mathrm{CH}_{3} \mathrm{COOH}<\mathrm{BrCH}_{2} \mathrm{COOH}<\mathrm{ClCH}_{2} \mathrm{COOH}<$ $\mathrm{FCH}_{2} \mathrm{COOH}$ Hence, option 'b' is correct
231605
Which one of the following has the highest nucleophilicity?
1 $\mathrm{OH}^{-}$
2 $\mathrm{CH}_{3}^{-}$
3 $\mathrm{NH}_{2}^{-}$
4 $\mathrm{F}^{-}$
Explanation:
That nucleophile which have no any -I effective group, is strongest nucleophile. Therefore $\mathrm{CH}_{3}^{\ominus}$ have highest nucleophilicity. Hence (b) option is correct. The order of nucleophilicity is- $\mathrm{CH}_{3}^{\ominus}>\mathrm{N}^{\ominus} \mathrm{H}_{2}>\mathrm{O}^{\ominus} \mathrm{H}>\mathrm{F}^{\ominus}$
UPTU/ UPSEE-2017
GENERAL ORGANIC CHEMISTRY
231606
The nature of 2,4,6-trinitrophenol is
1 neutral
2 basic
3 acidic
4 weak basic
Explanation:
The structure of 2,4,6-trinitro phenol is It is also known as picric acid. It is acidic in nature and it is very strong acid because it have $3-\mathrm{NO}_{2}$ group which pull the $-\mathrm{O}-\mathrm{H}$ electron towards itself and benzene ring also delocalized. Therefore its $\mathrm{pK}_{\mathrm{a}}$ value is 0.78 , which is very low. Hence 'c' option is correct.
MHT CET-2012
GENERAL ORGANIC CHEMISTRY
231607
Which of the following is the strongest base?
1
2
3
4
Explanation:
+I effect increase the basicity and delocalization decrease. In benzyl amine the benzene ring is not directly attached to benzene. Hence its basicity is higher than the other. Hence ' $d$ ' option is correct. The order of basicity is-
MHT CET-2011
GENERAL ORGANIC CHEMISTRY
231610
Which of the following represents the correct order of the acidity in the given compound?
I-effect increase the acidity and $+\mathrm{I}$ effect decrease the acidity. If electronegativity is high the effect of-I effective group is increase. Therefore the order of acidity is- $\mathrm{CH}_{3} \mathrm{COOH}<\mathrm{BrCH}_{2} \mathrm{COOH}<\mathrm{ClCH}_{2} \mathrm{COOH}<$ $\mathrm{FCH}_{2} \mathrm{COOH}$ Hence, option 'b' is correct
