Haloalkanes and Haloarenes

The reaction of methyltrichloroacetate (Cl₃CCO₂Me) with sodium methoxide (NaOMe) generates

• carbocation

• carbene

• carbanion

• carbon radical

Identify the correct method for the synthesis of the compound shown below from the following alternatives.

What is the end product for the reaction?

Number of chiral centers in the following image is/ are

• 1

• 2

• 3

• 4

In the following reaction

The main product (P) is

On Friedal Crafts acetylation, anisol yields

• 2-methoxyacetophenone

• 4-methoxyacetophenone

• Both (a) and (b)

• None of the above

Compound (A) when heated with ethyl magnesium iodide in dry ether forms an addition product, which on hydrolysis forms compound (B) Compound (B) on oxidation form 3-pantanone. Hence (A) and (B) are respectively 

• propanal, 3-pentanol

• pentanol, 3-pentanol

• ethanal, pentanol

• acetone, 3-pentanol

The false statements among the following are

I. A primary carbocation is less stable than a tertiary carbocation.

II. A secondary propyl carbocation is less stable than allyl carbocation.

III. A tertiary free radical is more stable than a primary free radical.

IV. Isopropyl carbanion is more stable than ethyl carbanion.

• I and II

• II and III

• I and IV

• II and IV

C₆H₅-NO₂ $\underset{\mathrm{NHCl}}{\overset{\mathrm{Zn}-\mathrm{dust}}{\to }}$ A $\underset{\mathrm{conc}. \mathrm{HCl}}{\overset{\mathrm{cold}}{\to }}$ B 

A and B respectively are

• 

• 

• 

• None of the above

X and Y in the above given reaction are

• picric acid, 2,4, 6-tribromophenol

• 5-nitrophenol acid, 5-bromosalicylic acid

• o-nitrophenol, o-bromophenol

• 3, 5-dinitrosalicylic acid, 3,5-dibromosalicylic acid