Match the compounds given in List-I with List-II and select the suitable optionusing the code given below :

List-I List-II

(A)Benzaldehyde (i)Phenolphthalein

(B)Phthalic anhydride (ii)Benzoin condensation

(C)Phenyl benzoate (iii)Oil of wintergreen

(D)Methyl salicylate (iv)Fries rearrangement

Clemmensen reduction of a ketone is carried out in the presence of which of the following ?

Following compounds are given:

Which of the above compound(s), on being warmed with iodine solution and NaOH,will give iodoform?

Which of the following reactions will not result in the formation of carbon-carbon bonds?

Propionic acid with Br₂/P yields adibromo product. Its structure would be:

Solution

This reaction is an example of Hell - Volhard Zelinsky reaction. In this reaction acids containing α– H on treatment with X₂/P give di-halo substituted acid.

The product formed in Aldol condensation is

Solution

Aldehydes and ketones having at least one α-hydrogen atom in presence of dilutealkali give β-hydroxy aldehyde or β-hydroxy ketone

Which one of the following on treatment with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid?

Solution

Aldehydes containing no -hydrogen atom on warming with 50% NaOH or KOH undergo disproportionation i.e., selfoxidation - reduction known as cannizzaro’s reaction.

Which of the following represents the correct order of the acidity in the given compounds?

Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc. HCl is called

Which of the following pairs can be distinguished by sodium hypoiodite?

Solution

Oxidation of acetal aldehydes and methyl ketones with sodium hypoiodite gives this test. So, here in option(b)ketone is having (CH₃CO —) group and the other is having (CH₃CH₂CO—) group which do not give hypoiodite test. So thus they can be distinguished.

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