19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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 statements is true ?
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 (…
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
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 ->
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?
The reagent is Reagent R CH CCl R R C C R ->
When hydrochloric acid gas is treated with propene in presence of benzoyl peroxide, it gives.
When 3, 3-dimethyl 2-butanol is heated with H2SO4, the major product obtained is
In the presence of platinum catalyst, hydrocarbon A adds hydrogen to form n-hexane. When hydrogen bromide is added to A instead of hydrogen, only a single bromo compound Is formed. Which of the following is A? (a) CH …