Chemistry Question Bank

Which of the following carbonyl oxygen will form strongest hydrogen bond with 퐻2푂 molecule? (a) (b) (c) (d)

Which one of the following pairs is not correctly matched

Product may be

Which of the aldehyde is most reactive towards nucleophilic addition reaction ?

For C6H5CHO which of the following is incorrect?

The product predominates is (a) (b) (c) (d)

The major product formed from the following reaction is (AFMC 2010) (a) (b) (c) (d)

When ethanal is treated with Fehling’s solution, it gives a precipitate of (AFMC 2010)

Name the reagent used to bring about the following transformation : But-2-ene to ethanal (AMU 2010)

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

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

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

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

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)

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

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

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 푥is

The reaction given is

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

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

shows Cannizzaro’s reaction due to

Benzaldehyde + NaOH→

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