Which chloro derivative of benzene among the following would undergo hydrolysis most readily with aqueous NaOH to furnish the corresponding hydroxy derivative?

  •  

  •  

  •  

  •  C6H5Cl

Which would be least reactive towards bromine?

  • Nitrobenzene

  • Anisole

  • Phenol

  • Chlorobenzene

Chlorobenzene is prepared commercially by:

  • Grignard reaction

  • Raschig process

  • Wurtz-Fittig reaction

  • Friedel-Crafts reaction

AgNO3(aq) gives yellow ppt. with:

  • KIO3 (aq)                       

  • KI (aq)

  • CHI3                               

  • CH2I2

Which of the following can be used as the halide component for Friedel-Crafts reaction?

  • Chlorobenzene

  • Bromobenzene

  • Chloroethene

  • Isopropyl chloride

In the given reaction

the product P is

  • 1
  • 2
  • 3
  • 4

Consider the reaction 

CH3CH2CH2Br + NaCN CH3CH2CH2CN + NaBr

This reaction will be the fastest in

  • ethanol

  • methanol

  • N,N'-dimethylformamide (DMF)

  • water

The compound that will react most readily with gaseous bromine has the formula ?

  • C3H6

  • C2H2

  • C4H10

  • C2H4

The reaction of C6H5CH=CHCH3 with HBr produces

 

  • 1
  • 2
  • 3
  • 4

Which one is the most reactive toward SN1 reaction?

  • C6H5CH(C6H5)Br

  • C6H5CH(CH3)Br

  • C6H5C(CH3)(C6H5)Br

  • C6H5CH2Br

In SN2 substitution reaction of the type

R - Br + Cl- DMFR - Cl + Br-,

Which one of the following has the highest relative rate ?

  •  CH3-CH2-CH2Br

  •  CH3-C|CH3H-CH2Br

  •  CH3-C|CH3CH3|-CH2Br

  •  CH3CH2Br

For the following reactions, 

i. CH3CH2CH2Br + KOHCH3CH=CH2 + KBr + H2

ii. 

iii. 
The correct statement among the following is -

  • (i) Elimination, reaction, (ii) is substitution and (iii) is addition reaction
  • (i) Elimination, (ii) and (iii) are substitution reactions
  • (i) Substitution, (ii) and (iii) are addition reactions
  • (i) and (ii) are elimination reactions and (iii) is addition reaction

Which of the following biphenyls is optically active?

  •  

  •  

  •  

  •  

 The correct statement among the following regarding SN1 reaction is -

  • 100% racemisation

  • Inversion more than retention leading to partial racemisation 

  • 100% retention

  • 100% Inversion

A compound among the following undergoes racemisation upon hydrolysis with aquous KOH is -
i.

ii. CH3CH2CH2Cl

iii. CH3-CH|CH3-CH2Cl 

iv. CH3-CH|Cl-C2H5

  • (i) and (ii)

  • (ii) and (iv)

  • (iv) only

  • (i) and (iv)

CH3-BrKCNAH3O+BetherLiAlH4C 
The end product (C) in the above mentioned reaction is -

  • Acetone

  • Methane

  • Acetaldehyde

  • Ethyl alcohol


 

The correct sequence of increasing reactivity of C-X bond towards nucleophile in the following compounds is -

  • I<II<IV<III

  •  II<III<I<IV

  •  IV<III<I<II

  •  III<II<I<IV

The reaction that cannot form new carbon-carbon bonds is -

  • Reimer-Tiemann reaction

  • Cannizaro reaction

  • Wurtz reaction

  • Friedel-Crafts acylation

The hydrolysis reaction that takes place at the slowest rate among the following is-

  •  

  •  H3CCH2Claq. NaOHH3CCH2OH

  •  H2C=CHCH2Claq. NaOHH2C=CHCH2OH

  •   

The major product of the above reaction is-

  •   

  •   

  •   

  •   

NaI/AcetoneProduct

Which of the following is not product of above reaction?

  •  

  •  

  •  

  •  

Product A is

 

  •  

  •  

  •  

  •  

Which of the following compound would not give an E2 product when treated with sodium ethoxide?

  •  

  •  

  •  

  •  

In which reaction product formation does not take place by Hofmann's Rule?

 

  •  CH3-CH2 - CH-CH3 t-BuOΘK                           |                           Br

  •  CH3 - CH2 - CH-CH3 C2H3OK                            |                             F

  •  CH3 - CH2 - CH-CH3 CH3O-K+                            |                             I

  •  CH3 - CH2 - CH-N(CH3)3I- OH-                             |                            CH3 -

Which of the following reacts with chloroform and base to form phenyl isocyanide?

  • Nitrobenzene

  • Phenol

  • Chlorobenzene

  • Aniline

In which of the following compounds, the C—Cl bond ionization shall give the most stable carbonium ion?

  •  
  •  
  •  
  •  

An alkyl halide that has maximum density is -

  • C3H7I                     

  • C2H5I                 

  • CH3I                 

  • CH3Br

PCI5 reacts with propanone, to give:

  • gem-Dichloride

  • vic-Dichloride

  • Propanal

  • Propane chloride

C2H5Cl+AgFC2H5F+AgCl

Above reaction is known as-

  • Finkelstein reaction

  • Swarts reaction

  • Hunsdiecker reaction

  • HVZ reaction

For SN1 reaction, preferred solvent will be -

  • Water

  • Benzene

  • Ether

  • Toluene

0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Chemistry Quiz Questions and Answers