Class 12 Chemistry ISC Haloalkanes&Haloarenes Board Questions
Here we provide Class 12 chemistry important notes,board questions and predicted questions with Answers for chapter Haloalkenes&Haloarenes. These important notes,board questions and predicted questions are based on ISC board curriculum and correspond to the most recent Class 12 chemistry syllabus. By practising these Class 12 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 12 Board examinations as well as other entrance exams such as NEET and JEE.
2020
Q1
(i) Give balanced chemical equations for the following reactions :
(1) Phenol is treated with ice cold alkaline solution of benzene diazonium chloride.
(2) Diethyl ether is treated with phosphorous pentachloride,
(3) Ethyl alcohol is treated with thionyl chloride.
(ii) Give one chemical test each to distinguish between the following pairs of compounds:
(1) Ethanol and dimethyl ether
(2) Propan-I-ol and propan-2-ol
solutions
(1) Phenol is treated with ice cold alkaline solution of benzene diazonium chloride.
(2) Diethyl ether is treated with phosphorous pentachloride,
(3) Ethyl alcohol is treated with thionyl chloride.
(ii) Give one chemical test each to distinguish between the following pairs of compounds:
(1) Ethanol and dimethyl ether
(2) Propan-I-ol and propan-2-ol
solutions
OR
Q1
Write chemical equations to illustrate the following name reactions :
(1) Reimer-Tiemann reaction
solutions
(1) Reimer-Tiemann reaction
solutions
2019
Q1
Give balanced equatios for the following :
(i) Aniline is treated with bromine water.
(ii) Ethylamine is heated with chloroform and alcoholic solution of potassium hydroxide
(iii) Benzine diazonium chloride is treated with ice cold solution of aniline in acidic medium
solutions
(i) Aniline is treated with bromine water.
(ii) Ethylamine is heated with chloroform and alcoholic solution of potassium hydroxide
(iii) Benzine diazonium chloride is treated with ice cold solution of aniline in acidic medium
solutions
2018
Q1
An aromatic organic compound [A] on heating with NH3 and Cu2O at high pressure
gives [B].The compound [B] on treatment with ice cold solution of NaNO2 and HCl gives
[C],which on heating with Cu/HCl gives compound [A] again.Identify the compounds [A],[B] and [C]
.Write the name of the reaction for the conservation of [B] to [C].
solutions
solutions
2017
Q1
Give balanced equations for the following name reactions:
(i) Friedal-Crafts reaction(Alkylation)
solutions
(i) Friedal-Crafts reaction(Alkylation)
solutions
2016
Q1
Convert: Methyl chloride to acetone
solutions
solutions
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