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The no of mono substituted derivatives o...

The no of mono substituted derivatives of pyridine is ________

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Which of the following substituted benzene derivative would furnish three isomers when one more electrophilic substituent is introduced? Select the correct answer using the codes given below.

Which of the following substituted benzene derivative would furnish three isomers when one more electrophilic substituent is introduced? Select the correct answer using the codes given below.

Write the IUPAC names of the following substituted benzene derivatives:

The compound prepared by substitution reaction of benzene is

Give the order of reactivity of various acid derivatives towards nucleophilic substitution. Solution

Electrophilic substitution on mono substituted benzene is determined by electronic effects +1, -M groups are ortho, para directors, where as -1,-M groups are meta directions. When there is a competition between inductive and mesomeric effects, the latter wins over. Electrophilic substitution on disubstituted benzene is determined by the combined effect of both groups. Usually activating group wins over deactivating group. When one of the groups has a lone pair of electrons, that will determine the product formation. Usually a third group will not enter the position in between the two existing groups due to steric reasons. Identify the incorrect statement

Electrophilic substitution on mono substituted benzene is determined by electronic effects +1, -M groups are ortho, para directors, where as -1,-M groups are meta directions. When there is a competition between inductive and mesomeric effects, the latter wins over. Electrophilic substitution on disubstituted benzene is determined by the combined effect of both groups. Usually activating group wins over deactivating group. When one of the groups has a lone pair of electrons, that will determine the product formation. Usually a third group will not enter the position in between the two existing groups due to steric reasons.

Electrophilic substitution on mono substituted benzene is determined by electronic effects +1, -M groups are ortho, para directors, where as -1,-M groups are meta directions. When there is a competition between inductive and mesomeric effects, the latter wins over. Electrophilic substitution on disubstituted benzene is determined by the combined effect of both groups. Usually activating group wins over deactivating group. When one of the groups has a lone pair of electrons, that will determine the product formation. Usually a third group will not enter the position in between the two existing groups due to steric reasons. Major products of nitration of acetanilide is:

Rate of electrophilic substitution reaction in phenol is

AAKASH SERIES-HYDROCARBONS-ADDITIONAL PRACTICE SHEET ( LEVEL-II (LECTURE SHEET (ADVANCED) (INTEGER TYPE QUESTIONS )))
  1. The number of dichloro isomeric products possible of dichorination of ...

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  2. How many products are possible theoretically in the reaction of cis-2-...

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  3. How many isomers with melocular formula C6H(12) gives Acetaldehyde in ...

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  4. Identify no of chiral centers present in product obtained by following...

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  5. Number of carbon atoms collinear in CH2 = CH - CH2 - C-=C-CH2-C -= CH

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  6. How many different products (excluding stereoisomer) can be obtained b...

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  7. Examine the structured formula of following compounds and find how man...

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  8. If the following compound is treated with pd/c in excess of H2 gas, ho...

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  9. No. of moles of acetylene required for cyclic polymerization in a red ...

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  10. Electrophilic substitution product of benzene is Hexa chloro benzene. ...

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  11. The no of mono substituted derivatives of pyridine is

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  12. In catalytic oxidation of benzene vapours in presence of V2O5 to give ...

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  13. In ozonolysis of benzene no of gyoxal molecules are formed.

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  14. How many of the following addition reactions are syn addition reaction...

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  15. Of the following reactions how many reactions are considered as oxidat...

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  16. Of the following compound, find out number of conjugated unstaturated ...

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  17. Examine the structural formulas of followings of following compounds a...

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  18. Number of primary hydrogens in isobutane is

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  19. The number of alkene (structural) isomers possible, each of which on h...

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