41.

The number of moles of Grignard reagent consumed per mole of the compound

• 2

• 3

• 1

• 4

Which one of the following will be reactive for Perkin condensation ?

• 

• 

• 

• C₆H₅-CHO

Which of the following is a monomer of Dacron?

• H₂C=C(Cl)-CH=CH₂

• 

• HOH₂C-CH₂OH

• CH₂=CH-CH=CH₂

Which of the following is Reimer-Tiemann reaction?

Some pairs ofions are given below. In which pair, first ion is more stable tlian second ion?

• H₃C-CH₂-C+H-CH₃ and H₃C-CH₂-CH-CH₂

• 

• H₃C-CH-CH₃ and H₃C-N-CH₃

• H₃C-CH-CH₃ and CH-OCH₃

Among the given compound choose the two i.hat yield same carbocation on ionisation.

• (ii) and (iv)

• (i) and (ii)

• (ii) and (iii)

• (i) and (iii

In aldol addition reaction product is always

• β - hydroxyketone

• α, β - unsaturated aldehyde

• α, β - unsaturated ketone

• β - hydroxyaldehyde

IUPAC name of the following is

CH₃CH₂$\underset{{\mathrm{CH}}_3}{\underset{|}{\mathrm{CH}}} - \underset{\mathrm{CHO}}{\underset{|}{\mathrm{CH}}}$CH₂CH₃

• 2, 3-diethyl butenal

• 2-ethyl, 3-methyl pentanal

• 8-methyl, 2-ethyl pentanal

• 2, 5 butyl butenal

What is the name of the following reaction?

HCHO + HCHO $\underset{∆}{\overset{\mathrm{NaOH}}{\to }}$ CH₃OH + HCOONa

• Clemmensen reaction

• Cannizzaro reaction

• None of the options

• Hell-Volhard reaction

D-mannose $\stackrel{{\mathrm{HO}}^{-}}{\rightleftharpoons } \mathrm{D}-\mathrm{glucose} \stackrel{{\mathrm{HO}}^{-}}{\rightleftharpoons }$(A) Product

(A) of above reaction is

• D-fructose

• D-talose

• D-idose

• D-glucose