Chemistry Question Bank

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

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

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: 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…

The number of sigma () and pi ( ) bonds in pent-2- en-4-yne is (NEET 2019)

The most stable carbocation, among the following is (NEET 2019)

A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following? (NEET 2020)

Dihedral angle of least stable conformer of ethane is (NEET 2021)

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?

Geometrical isomers differ in (PMET 2007)

In which bond angle is the highest

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

Which among the given molecules can exhibit tautomerism? (NEET-II 2016)

The IUPAC name of the compound is _____. (NEET 2017)

The correct statement regarding electrophile is (NEET 2017)

Which of the following molecules represents the order of hybridisation sp2, sp2, sp, sp from left to right atoms? (NEET 2018)

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

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

Consider the following compounds: Hyperconjugation occurs in (NEET 2015)

In the hydrocarbon, The state of hybridization of carbons 1,3,5 are in the following sequence:

Which of the following statements is true about hybridization?

C1—C2 bond of this molecule is formed by GENERAL ORGANIC CHEMISTRY

In which of the following compounds, C has used sp2 orbital in making C—O bond? (a) (b) (c) (d)

How many and bonds are present between carbon atoms in H C C CH CH is

Underlined carbon is sp3 hybridised in (a) CH CH CH (b) CH CH NH (c) CH CONH (d) CH CH CN