Chemistry Question Bank

In which of the following molecules, all atoms are coplanar? (NEET-II 2016) (a) (b) (c) (d)

The compound that will react most readily with gaseous bromine has the formula (NEET 2017) (a) C H (b) C H (c) C H (d) C H

With respect to the conformers of ethane, which of the following statements is true? (NEET 2017)

Which one is the correct order of acidity? (NEET 2017)

Predict the correct intermediate and product in the following reaction: (NEET 2017) (a) (b) (c) (d)

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is (NEET 2018)

The alkane that gives only one monochloro product on chlorination with Cl2 in presence of diffused sunlight is (NEET 2019)

The most suitable reagent for the following conversion, is (NEET 2019) (a) Hg / H ,H O

In the following reaction, red hot iron tube 873K H C C CH A -> The number of sigma () bonds present in the product A, is (NEET 2019)

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

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

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

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

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

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

Which of the following orders is correct for no-bond- resonance energy of these radicals ?

Which of the following is least stable?

The most unlikely representation of resonance structure of p–nitrophenoxide ion is: (a) (b) (c) (d)

GENERAL ORGANIC CHEMISTRY The most stable canonical structure among these is

The stability order of these canonical structures is

Among these compounds, which one has shortest C—Cl bond?

Which of the following statements is true about this molecule ?

Resonance structure of a molecules should have

Electromeric effect is