Directive Influence of a Functional Group in Monosubstituted Benzene
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CHXI13:HYDROCARBONS

318320 How many of the following groups are meta directing deactivating groups?
\({\mathrm{-\mathrm{Br},-\mathrm{CF}_{3},-\mathrm{COR},-\mathrm{CN},-\mathrm{NHCOR},-\mathrm{C}_{6} \mathrm{H}_{5}}}\), \({\mathrm{-\mathrm{COOH},-\mathrm{SO}_{3} \mathrm{H},-\mathrm{OH},-\mathrm{NO}_{2}}}\)

1 6
2 4
3 3
4 5
CHXI13:HYDROCARBONS

318321 Predict the product ' Z ' formed in the following reaction:
supporting img

1 o-methylphenol
2 p-methylphenol
3 phenol
4 p-methylsulphonic acid
CHXI13:HYDROCARBONS

318322 Which of the following statement is incorrect regarding nitration of aromatic compounds?
I. The rate of nitration of benzene decreases at 323-333 K.
II. The rate of nitration of toluene is greater than that of benzene.
III. The rate of nitration of chlorobenzene is greater than that of benzene.
IV. Nitration is an electrophilic substitution reaction.
Choose the incorrect statement.

1 Only I
2 Both I and III
3 II and IV
4 All of these
CHXI13:HYDROCARBONS

318323 Assertion :
Activating groups are electron donors.
Reason :
Nitroso group is an activating group.

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.
CHXI13:HYDROCARBONS

318324 The most reactive among the following towards sulphonation is

1 toluene
2 chlorobenzene
3 nitrobenzene
4 m-Xylene
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CHXI13:HYDROCARBONS

318320 How many of the following groups are meta directing deactivating groups?
\({\mathrm{-\mathrm{Br},-\mathrm{CF}_{3},-\mathrm{COR},-\mathrm{CN},-\mathrm{NHCOR},-\mathrm{C}_{6} \mathrm{H}_{5}}}\), \({\mathrm{-\mathrm{COOH},-\mathrm{SO}_{3} \mathrm{H},-\mathrm{OH},-\mathrm{NO}_{2}}}\)

1 6
2 4
3 3
4 5
CHXI13:HYDROCARBONS

318321 Predict the product ' Z ' formed in the following reaction:
supporting img

1 o-methylphenol
2 p-methylphenol
3 phenol
4 p-methylsulphonic acid
CHXI13:HYDROCARBONS

318322 Which of the following statement is incorrect regarding nitration of aromatic compounds?
I. The rate of nitration of benzene decreases at 323-333 K.
II. The rate of nitration of toluene is greater than that of benzene.
III. The rate of nitration of chlorobenzene is greater than that of benzene.
IV. Nitration is an electrophilic substitution reaction.
Choose the incorrect statement.

1 Only I
2 Both I and III
3 II and IV
4 All of these
CHXI13:HYDROCARBONS

318323 Assertion :
Activating groups are electron donors.
Reason :
Nitroso group is an activating group.

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.
CHXI13:HYDROCARBONS

318324 The most reactive among the following towards sulphonation is

1 toluene
2 chlorobenzene
3 nitrobenzene
4 m-Xylene
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CHXI13:HYDROCARBONS

318320 How many of the following groups are meta directing deactivating groups?
\({\mathrm{-\mathrm{Br},-\mathrm{CF}_{3},-\mathrm{COR},-\mathrm{CN},-\mathrm{NHCOR},-\mathrm{C}_{6} \mathrm{H}_{5}}}\), \({\mathrm{-\mathrm{COOH},-\mathrm{SO}_{3} \mathrm{H},-\mathrm{OH},-\mathrm{NO}_{2}}}\)

1 6
2 4
3 3
4 5
CHXI13:HYDROCARBONS

318321 Predict the product ' Z ' formed in the following reaction:
supporting img

1 o-methylphenol
2 p-methylphenol
3 phenol
4 p-methylsulphonic acid
CHXI13:HYDROCARBONS

318322 Which of the following statement is incorrect regarding nitration of aromatic compounds?
I. The rate of nitration of benzene decreases at 323-333 K.
II. The rate of nitration of toluene is greater than that of benzene.
III. The rate of nitration of chlorobenzene is greater than that of benzene.
IV. Nitration is an electrophilic substitution reaction.
Choose the incorrect statement.

1 Only I
2 Both I and III
3 II and IV
4 All of these
CHXI13:HYDROCARBONS

318323 Assertion :
Activating groups are electron donors.
Reason :
Nitroso group is an activating group.

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.
CHXI13:HYDROCARBONS

318324 The most reactive among the following towards sulphonation is

1 toluene
2 chlorobenzene
3 nitrobenzene
4 m-Xylene
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CHXI13:HYDROCARBONS

318320 How many of the following groups are meta directing deactivating groups?
\({\mathrm{-\mathrm{Br},-\mathrm{CF}_{3},-\mathrm{COR},-\mathrm{CN},-\mathrm{NHCOR},-\mathrm{C}_{6} \mathrm{H}_{5}}}\), \({\mathrm{-\mathrm{COOH},-\mathrm{SO}_{3} \mathrm{H},-\mathrm{OH},-\mathrm{NO}_{2}}}\)

1 6
2 4
3 3
4 5
CHXI13:HYDROCARBONS

318321 Predict the product ' Z ' formed in the following reaction:
supporting img

1 o-methylphenol
2 p-methylphenol
3 phenol
4 p-methylsulphonic acid
CHXI13:HYDROCARBONS

318322 Which of the following statement is incorrect regarding nitration of aromatic compounds?
I. The rate of nitration of benzene decreases at 323-333 K.
II. The rate of nitration of toluene is greater than that of benzene.
III. The rate of nitration of chlorobenzene is greater than that of benzene.
IV. Nitration is an electrophilic substitution reaction.
Choose the incorrect statement.

1 Only I
2 Both I and III
3 II and IV
4 All of these
CHXI13:HYDROCARBONS

318323 Assertion :
Activating groups are electron donors.
Reason :
Nitroso group is an activating group.

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.
CHXI13:HYDROCARBONS

318324 The most reactive among the following towards sulphonation is

1 toluene
2 chlorobenzene
3 nitrobenzene
4 m-Xylene
Join With Us for More Updates
CHXI13:HYDROCARBONS

318320 How many of the following groups are meta directing deactivating groups?
\({\mathrm{-\mathrm{Br},-\mathrm{CF}_{3},-\mathrm{COR},-\mathrm{CN},-\mathrm{NHCOR},-\mathrm{C}_{6} \mathrm{H}_{5}}}\), \({\mathrm{-\mathrm{COOH},-\mathrm{SO}_{3} \mathrm{H},-\mathrm{OH},-\mathrm{NO}_{2}}}\)

1 6
2 4
3 3
4 5
CHXI13:HYDROCARBONS

318321 Predict the product ' Z ' formed in the following reaction:
supporting img

1 o-methylphenol
2 p-methylphenol
3 phenol
4 p-methylsulphonic acid
CHXI13:HYDROCARBONS

318322 Which of the following statement is incorrect regarding nitration of aromatic compounds?
I. The rate of nitration of benzene decreases at 323-333 K.
II. The rate of nitration of toluene is greater than that of benzene.
III. The rate of nitration of chlorobenzene is greater than that of benzene.
IV. Nitration is an electrophilic substitution reaction.
Choose the incorrect statement.

1 Only I
2 Both I and III
3 II and IV
4 All of these
CHXI13:HYDROCARBONS

318323 Assertion :
Activating groups are electron donors.
Reason :
Nitroso group is an activating group.

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.
CHXI13:HYDROCARBONS

318324 The most reactive among the following towards sulphonation is

1 toluene
2 chlorobenzene
3 nitrobenzene
4 m-Xylene