19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Name the reagent used to bring about the following transformation : But-2-ene to ethanal (AMU 2010)
When ethanal is treated with Fehling’s solution, it gives a precipitate of (AFMC 2010)
The major product formed from the following reaction is (AFMC 2010) (a) (b) (c) (d)
An organic compound A burns with a sooty flame. It is negative towards Tollen’s reagent test and positive for Brady’s reagent test. The compound A is (KCET 2011)
Which of the following organic compounds answers both iodoform test Fehling’s test? (KCET 2013)
Ozonolysis (Reductive) X Y Z -> Y can be obtained by Etard’s reaction, Z undergoes disproportion reaction with concentrated alkali ,X could be (KCET 2014) (a) (b) (c) (d)
(i)CH MgBr (i)Dil.NaOH (ii) (ii)H O P R -> -> 4-methylpent-3-en-2-one compound P is (KCET 2014)
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is (NEET 2016)
The IUPAC name of the compound (NEET 2017) is
Conc.NaOH O|| H C H CH CH O -> Find out the products of reaction (AIIMS 2019)
Identify compound X in the following sequences of reactions : (NEET 2021) (a) (b) (c) (d)
The IUPAC name of the following structure is
The end product in the following sequence of reaction is
Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. Compound F is (a) (b) (c) (d)
What reagent is used in the Rosenmund’s reduction ?
The major product obtained in the following reaction is : (a) (b) (c) (d)
When a nucleophile encounters a ketone, the site of attack is
Which of the following compound gives a ketone with Grignard reagent:
Which one of the following will most readily be dehydrated in acidic condition ? (a) (b) (c) (d)
The smallest ketone and its next homologue are reacted with NH2OH to form oxime
major product is (a) (b) (c) (d)
the compound (X) is
An organic compound X on treatment with pyridinium chloro chromate in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound ‘X’ is
Aldehydes are the first oxidation product of
Ketones where R = R1 = alkyl group. It can be obtained in one step by