271.

Which of the following compounds is most acidic?

• 

• 

• 

• Cl-CH₂-CH₂-OH

Phenol + CCl₄ + KOH → X; 

Which of the following statement is true for X?

• It gives effervescence with NaHCO₃

• Gives silver mirror with Tollen's reagent

• Does not give the red colour with FeCl₃

• All of the above

Which one of the following is a Grignard reagent?

• CH₃OMgI

• C₆H₅MgBr

• C₂H₅OMgBr

• (C₂H₅)₄Pb

Which of the following compounds contain atleast one secondary alcohol?

• (i), (ii), (iii), (v)

• (i), (iii), (v)

• (i), (ii), (iv), (vi)

• (i), (ii), (iii)

When Grignard reagentreacts with ketone, it yields

• 3° alcohol

• ethanol

• 1° alcohol

• 2° alcohol

Which of the following reacts fastest with conc.HCl ?

• (CH₃)₃COH

• CH₂=CH-CH₂OH

• 

• 

Number of esters of the molecular formula C₃H₆O₂ can be

• 4

• 3

• 2

• 1

Aldol condensation reaction is not given by

• C₆H₅CH₂CHO

• C₆H₅CHO

• CH₃CHO

• CH₃COCH₃

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