19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Three products are obtained by the ozonolysis of penta- 1,3-diene. Out of these if two products are formaldehyde and acetaldehyde, the name of the third one is (AFMC 2009)
Which of the following chemical system is non aromatic? (NEET 2013) (a) (b) (c) (d)
The IUPAC name of is
The common name and JUPAC name of are respectively
X-ray diffraction study of benzene reveals that I. It is a planar molecule. II. C–C bond lengths are of the same order which is intermediate between C–C single bond and C–C double bond, III. Benzene is reluctant to…
How many isomers of 1, 2- dibromobenzene are possible according to Kekule?
Identify a reagent from the following list which can easily distinguish between 1-butyne and 2-butyne.
Any ring system will be ‘aromatic’ in nature if it possesses: I. planarity. II. complete delocalisation of the electrons in the ring. III. it follows Huckel Rule. Choose the correct option.
Which of the following statement(s) is/are correct regarding structure of benzene? I. All the six carbons in benzene are sp2 hybridised. II. sp2 hybridised orbital of carbon combines with another sp2 hybridised orbi…
Light C H Cl P -> Product ‘P’ is
1-butyne on oxidation with hot alkaline KMnO4 would yield
Choose the reagent to carry out the reaction.
Predict the product of the reaction 1-butyne with 2 equivalents of HCl (a) (b) (c) (d)
Which is most acidic of the following ?
Acetylene on treating with Cu2Cl2 gives
Which of the following organic compounds exhibit acidic character ? (a) (b) (c) (d)
Which of the following reacts with KMnO4 but does not react with AgNO3?
(A); Unknown (A) is (a) (b) (c) (d)
Acetylene does not react with
When propyne is treated with aqueous H2SO4 in presence of HgSO4, the major product is
Alkynes are ...A... polar in nature. Here, A refers to
Products of the following reaction (i) O3 CH C C – CH CH ........ are (ii) Hydrolysis -> (a) CH CHO CH CH CHO (b) CH COOH CH COCH (c) CH COOH HOOC CH CH x (d) CH COOH CO
In the following reaction, What is X ?
Which of the following compounds can be best prepared by Wurtz-reaction?
On mixing alkane with chlorine and irradiating with ultraviolet light, it forms only one monochloroalkane. The alkane is