Chemistry : Organic Chemistry – Some Basic Principles and Techniques

The correct order of ease of dehydration of following is :

• I > II > III

• III > II > I

• I > III > II

• III > I > II

Among the following L-serine is

Among the following which one can have a meso form?

• CH₃CH(OH)CH(Cl)C₂H₅

• CH₃CH(OH)CH(OH)CH₃

• C₂H₅CH(OH)CH(OH)CH₃

• HOCH₂CH(Cl)CH₃

The major product obtained on the monobromination (with Br₂/FeBr₃) of the following compound A is

Which of the following molecules is most suitable to disperse benzene in water?

Among the following the strongest nucleophile is

• C₂H₅SH

• CH₃COO^-

• CH₃NH₂

• NCCH₂^-

Among the following the most stable compound is

• cis-1,2-cyclohexanediol

• trans-1,2-cyclohexanediol

• cis-1,3-cyclohexanadiol

• trans-1,3-cyclohexanediol.

3-Phenylpropene on reaction with HBr gives (as a major product)

• C₆H₅CH₂(Br)CH₃

• C₆H₅CH(Br)CH₂CH₃

• C₆H₅CH₂CH₂CH₂Br

• C₆H₅CH(Br)CH=CH₂

Assertion: Diastereomers have different physical properties.

Reason : They are non-superimposable mirror images.

• If both assertion and reason are true and reason is the correct explanation of the assertion.

• If both assertion and reason are true but reason is not the correct explanation of the assertion.

• If assertion is true, but reason is false.

• Both assertion and reason are false statements.

Assertion : Rates of nitration of benzene and hexadeuterobenzene are different.

Reason : C- H bond is stronger than C- D bond.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.