41.

Which of the following is not basic amino acid?

• Leucine

• Lysine

• Arginine

• Histidine

In the cannizzaro reaction given below

2C₆H₅CHO $\stackrel{{\mathrm{OH}}^{-}}{\to }$ C₆H₅CH₂OH + C₆H₅COO^-

The slowest step is  

• The attack of OH^- at the carbonyl group

• The transfer of hydride ion to the carbonyl group

• The abstraction of proton from the carboxylic acid

• The deprotonation of benzyl alcohol

Bisphenol and epichlorohydrin condensed in presence of NaOH forming

• Resins

• Rubber

• Foam

• Polyester

The total number of optical isomers possible in aldohexose is

• 2

• 16

• 8

• 4

${\mathrm{CHCl}}_3\underset{\mathrm{hv}}{\overset{\left[\mathrm{O}\right]}{\to }} \mathrm{A} \stackrel{{\mathrm{NH}}_3}{\to } \mathrm{B} \underset{{\mathrm{PoCl}}_3}{\overset{\mathrm{Malonic} \mathrm{acid}}{\to }} \mathrm{C}$ 

The end product C in the following reaction is used as

• explosive

• hypnotic

• tear gas

• analgesic

Natural rubber is a polymer of monomer isoprene. During polymerisaton

• 1, 4 addition takes place

• 1, 2 addition takes place

• 1,3 addition takes place

• both double bonds are converted into single bond

Select the correct statement

• Orlon is an addition polymer

• Dacron is an addition polymer

• Orlon is a condensation polymer

• The monomers of orlon is styrene

A new carbon-carbon bond formation is possible in:
I. Cannizzaro reaction
II. Friedel-Craft reaction
III. Clemmensen reduction
IV. Reimer-Tiemann reaction

• I, II and III

• II, III and IV

• I and III

• II and IV

Which of the following compounds formed during Perkin's reaction?

• Resorcinol

• Cinnamic acid

• Benzaldehyde

• Benzoin

Consider the following reaction 

${\mathrm{Me}}_2\mathrm{C}={\mathrm{CH}}_2 + {\mathrm{H}}^{+} \stackrel{{\mathrm{H}}_2{\mathrm{SO}}_4}{\rightleftharpoons } \left(\mathrm{X}\right) \stackrel{\mathrm{EtOH}}{\rightleftharpoons }\left(\mathrm{Y}\right) \underset{\left(\mathrm{Z}\right) }{\to }{\mathrm{Me}}_3\mathrm{COEt}$

In this reaction which is not correct?

• (X) is Me₃C⁺

• (X) is Me₃CH-$\stackrel{+}{\mathrm{C}}\mathrm{H}$

• (Z) is H⁺

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