Chemistry Question Bank

Aldol condensation is

does not show aldol condensation because :

Predict the product ‘B’ in the sequence of reaction

Aldol condensation will not take place in

Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure (a) (b) (c)

Which of the products is formed when acetone is reacted with barium hydroxide solution? (a) (b) (c) (d)

3-hydroxy butanal is formed when X reacts with Y in dilute Z solution. What are X, Y and Z? X Y Z (a) CH3CHO, (CH3)2CO, NaOH (b) CH3CHO, CH3CHO, NaCl (c) (CH3)2CO, (CH3)2CO, HCl (d) CH3CHO, CH3CHO, NaOH

Which of the following compound will undergo self aldol condensation in the presence of cold dilute alkali

(a) (b) (c) (d)

In the scheme given below, the total number of intramolecular aldol condensation products formed from ′′푌′′ is (a)1 (b)2 (c)3 (d)4

Benzaldehyde + NaOH→

shows Cannizzaro’s reaction due to

(a) (b) (c) (d)

Undergo Cannizaro reaction give product as (a) (b) (c) (d)

The reaction given is

The compound 푥is

Assertion(A) 2-butenal lacks enolisable H-atom, α to carbonyl group, still it has sufficient acidic character. Reason(R) The conjugate base of 2-butenal is stabilized by resonance. (AIIMS 2009)

The compound, with which ethanal does not react, is. (AFMC 2009)

The most reactive of the following is (J&K CET)

Aldehydes and ketones are differentiated by using (UP CPMT 2010)

If heavy water is taken as solvent instead of normal water while performing Cannizzaro reaction, the products of the reaction are (AIIMS 2009)

In the following reaction sequence, C H NH Cl Ca(OH) Alc.KOH CH CHO X Y -> -> Y is (MHT CET 2010)

Ethyl methyl ketone is obtained by heating calcium salts of (MHT CET 2010)

Identify the reaction which is used to obtain -hydroxy ketone? (Guj CET 2010)

Which of the following reaction will not result in the formation of carbon-carbon bonds? (CBSE AIPMT 2010)