Single Choice

Which of the following gives condensation with hydroxyl amine but does not undergo self condensation?

AMethanal
Correct Answer
BPropanal
CAcetone
DEthanal

Solution

Methanal or formaldehyde does not contain an alpha H atom.

Hence, it gives condensation with hydroxyl amine but does not undergo self condensation.

Option A is correct.

SIMILAR QUESTIONS

Physical World

What is meant by the following terms ? Give an example of the reaction in each case. (i) Cyanohydrin (ii) Acetal (iii) Semicarbazone (iv) Aldol (v) Hemiacetal (vi) Oxime (vii) Ketal (vii) Imine (ix) 2,4-DNP-derivative (x) Schiffs base

Physical World

When propanal reacts with 2-methylpropanal in presence of $$NaOH$$, four different products are formed. The reaction is known as:

Physical World

Aldol condensation does not occur between:

Physical World

Reaction between benzaldehyde and acetophenone in presence of dilute $$NaOH$$ is known as:

Physical World

Aldol condensation between which of the following two compounds followed by dehydration gives methyl vinyl ketone?

Physical World

Complete the following: $$PhCOPh + KOH \longrightarrow (A) + (B)$$

Physical World

How will you bring about the following conversions in not more than two steps ? Benzaldehyde to 3-Phenylpropan-1-ol

Physical World

Describe the following: Cross aldol condensation

Physical World

Complete each synthesis by giving the missing starting material, reagent, or products.

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