Chemistry Question Bank

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)

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

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

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

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

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

Which of the following can be used as the halide component for Friedel–Crafts reaction? (NEET-II 2016)

In the reaction i NaNH /liq.NH ii CH CH Br H C CH X -> i NaNH /liq.NH ii CH CH Br Y -> X and Y are (NEET-I 2016)

The pair of electrons in the given carbanion, CH3C≡C–, is present in which of the following orbitals? (NEET-I 2016)

Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction? (NEET-II 2016) (a)

The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is (NEET-I 2016)

Consider the nitration of benzene using mixed conc. H SO and HNO . If a large amount of KHSO4is added to the mixture, the rate of nitration will be (NEET 2016)

Which of the following is not the product of dehydration of (NEET 2015) (a) (b) (c) (d)

In the reaction with HCl, an alkene reacts in accordance with the Markovnikov’s rule to give a product 1-chloro- 1-methyl-cyclohexane. The possible alkene is (NEET 2015) (a) (b)

What products are formed when meta - xylene is treated with Br2 in the presence of FeBr3? (NEET 2014) (a) (b) (c) (d)

Which of the following organic compounds has same hybridization as its combustion product (CO2)? (NEET 2014)

Which of the following chemical system is non aromatic? (NEET 2013) (a) (b) (c) (d)

Which of the following compounds will not undergo Friedel-Crafts reaction easily? (NEET 2013)

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating? (NEET 2013)

In the following reaction: (NEET 2013) H SO Hg HC CH ' ' P -> Product ‘P’ will not give

Among the following compounds the one that is most reactive towards electrophilic nitration is (AIPMT 2012)

Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne? (AIPMT 2012)

In the following reaction The major product is (AIPMT 2012) (a) (b)

Considering the state of hybridization of carbon atoms, find out the molecule among the following which is linear? (AIPMT 2011)

In the following the most stable conformation of n- butane is (AIPMT 2010) (a) (b) (c) (d)