Chemistry Question Bank

Which of the following statements is true ?

Consider the below reaction and identify the missing reagent/chemical (NEET 2021) + NaOH + ? CH CH COO Na Heat CH CH Na CO ->

The major product formed in dehydrohalogenation reaction of 2-Bromopentane is pent-2-ene. This product formation is based on (NEET 2021)

The major product of the following chemical reaction is (NEET 2021) (a) (b) (c) (d)

An alkene A on reaction with O3 and Zn–H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene A gives B as the major product. The structure of product B is (NEET 2020) (a) (b) (c) (d)

An alkene on ozonlysis gives methanal as one of the product. Its structure is (NEET 2020) (a) (b) (c) (d)

Which of the following alkane cannot be made in good yield by Wurtz reaction? (NEET 2020)

Among the following the reaction that proceeds through an electrophilic substitution is (NEET 2019) (a) (b) (c) (d)

Which one of the following contain isopropyl group ?

Hybridized carbon atom used in the formation of the compound CH3— CH CH — CH2 — CH3 are:

The hybridization of carbon atoms in C—C single bond of H — C C — CH CH2 is:

Assertion: Ethylene is more reactive than ethane. Reason: Ethylene possess pi bond.

In which bond angle is the highest

Assertion: NF is a weaker ligand than N CH . Reason: NF ionizes to give Fions in aqueous solution.

Assertion : Tropylium cation is aromatic in nature. Reason :The only property that determines its aromatic behaviour is planar structure.

Assertion: A compound with delocalised electrons is more stable than that compound would be if all its electrons were localised. Reason: The extra stability, a compound gains as a result of having delocalised electro…

Assertion : The carbocation CF CH is less stable than CF . Reason : In case of CF CH ,CF is strong electron withdrawing, therefore increases +ve charge whereas in CF , lone pair of ‘F’ overlap with vacant p-orbi…

Assertion : Carbanions like ammonia have pyramidal shape. Reason : The carbon atom carrying negative charge has an octet of electrons.

Tautomerism is exhibited by (1) GENERAL ORGANIC CHEMISTRY (2) (3) (4)

Maximum enol content is in (a) (b) (c) (d)

The type of isomerism observed in urea molecule is

The geometrical isomerism is shown by (a) (b) (c) (d)

How many geometrical isomers of this cyclodecene are possible ?

Which will not show geometrical isomerism ?

The molecular formula of diphenyl methane is C 13H How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?