41.

The IUPAC name of the compound is :

HOOC–CH₂–CH(COOH)–CH₂-CH₂-COOH

• 2(carboxymethyl)-pentane-1, 5-dioic acid

• 3-carboxyhexane-1, 6-dioic acid

• butane-1, 2, 4-tricarboxylic acid

• 4-carboxyhexane-1, 6-dioic acid

Chlorination of toluene in presence of light and heat followed by treatment with aqueous NaOH gives:

• o-cresol

• p-cresol

• mixture of o-cresol and p-cresol

• benzoic acid

CH₃—CHO + HCN → A. Compound A on hydrolysis gives:

• CH₃—CH(OH)—COOH

• CH₃—CH₂—CH₂—NH₂

• CH₃—CO—COOH

• CH₃—CH₂—COOH

Which of the following does not undergo Cannizaro's reaction ?

• Benzaldehyde

• 2-methylpropanal

• p-methoxybenzaldehyde

• 2, 2-dimethylpropanal

Identify the product in the following sequence $3,4,5 \mathrm{tribromoaniline} \underset{\left(2\right) {\mathrm{H}}_3{\mathrm{PO}}_2}{\overset{\left(1\right) \mathrm{diazorization} }{\to }}?$

• 3, 4, 5-tribromobenzene

• 1, 2, 3-tribromobenzene

• 2, 4, 6-tribromobenzene

• 3, 4, 5-tribromonitrobenzene

Among the amines 

(A) C₆H₅NH₂

(B) CH₃NH₂

(C) (CH₃)₃N

(D) (CH₃)₂NH

• A < B < D <C

• D < C < B <A

• A > B > C >D

• B < C < D <A

The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The poly dispersity index of the polymer is :

• < 1

• >1

• 1

• 0

In biological systems, the RNA molecules direct the synthesis of specific proteins which are characteristic of each kind of organism. This process is known is

• transcription

• mutation

• replication

• translation