19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
When 3, 3-dimethyl 2-butanol is heated with H2SO4, the major product obtained is
When hydrochloric acid gas is treated with propene in presence of benzoyl peroxide, it gives.
The reagent is Reagent R CH CCl R R C C R ->
Consider the following statements : A hydrocarbon of molecular formula C5H10 is a I. monosubstituted alkene II. disubstituted alkene III. trisubstituted alkene Which of the following statement(s) is(are) correct?
Which one of the following reactions is expected to readily give a hydrocarbon product in good yields? (a) Electrolytic RCOOK oxidation -> (b) Br2 RCOO Ag -> (c) Br2 RCOO Ag ->
In the given reactions : Br Na,ether Na,ether (i)CH Br X Y Z hv Br NaOH NaOH (ii)CH COOH X Y Z CaO hv -> -> -> -> -> -> Identify X, Y and Z. X Y Z
Match the column I with column II and mark the appropriate choice. Column I Column II (A) n-butane 2-methylpropane (i) Free radical substitution (B) hv CH Cl CH Cl -> (ii) Wurtz reaction (C) RCOONa + soda lime RH (…
Which of the following statements is true ?
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)
Elimination of bromine from 2-bromobutane results in the formation of
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)