The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement

51.

The reaction of 1-bromo-3-chlorocyclobutane with metallic sodium in dioxane under reflux conditions gives


D.

When 1-bromo-3-chlorocyclobutane reacts with metallic sodium in dioxane under reflux conditions is an example of Wurtz reaction. Since, bromides are more reactive than chlorides in Wurtz reaction, therefore, it occurs on the side of Br atoms, 


Advertisement
52.

Identify Z in the following reaction sequence

CH3CH2CH2OH 160-180°CConce. H2SO4 X → Y (ii) NaNH2(i) Alc. KOH

  • CH3-CH(NH2)-CN2NH2

  • CH3-CHOH-CH2OH

  • CH3-C(OH)=CH2

  • CH3-C≡CH


53.

Which of the following reactions is used to prepare isobutane?

  • Wurtz reaction of C2H5Br

  • Hydrolysis of n-butylmagnesium iodide

  • Reduction of propanol with red phosphorus and HI

  • Decarboxylation of 3-methylbutanoic acid


54.

Treating anisole with the following reagents, the major product obtained is 

I. (CH3)3CCl, AlCl3

II. Cl2, FeCl3

III. HBr, Heat


Advertisement
55.

Product is/ are

  • Both (a) and (b)

  • None is correct


56.

Glycerol KHSO4 A HClO B

A and B respectively are

  • CH2=CHC||OH ; C|ClH2-C(OH)HCOH

  • CH2=CHCOH; C(OH)H2-C(Cl)HOCH

  • CH3CH2CHO; CH3CH2CH(OH)(Cl)

  • CH2=CHCOH; C(Cl)OH2CH2CHO


57.

C6H5NH2 0°CNaNO2/ HCl X CuCN Y H2O/ H+ Z, Z i identified as

  • C6H5-NH-CH3

  • C6H5-CH2-NH2

  • C6H5-CH2-COOH

  • C6H5-COOH


58.

Which of the following does not undergo benzoin condensation?


Advertisement
59.

C* is with the product

  • CO2

  • Both (a) and (b)

  • None of the above


60.

Benzene diazonium chloride on treatment with hypophosphorus acid and water yield benzene. Which of the following is used as a catalyst in this reaction?

  • LiAlH4

  • Red P

  • Zn

  • Cu+


Advertisement