JEE Main Solved Chemistry Sample Paper Set-X

Find JEE Main Solved Chemistry Sample Paper Set-X in this article. This sample paper consists of 30 questions from Chemistry. Each question is very important from examination point of view and has been designed by Subject Experts at Jagranjosh.

Importance of Sample Paper

Practicing sample papers and previous years’ question papers help in assessing your preparation and time management. It will also help in increasing your marks in examination.

About Exam:

IIT JEE is a national level entrance examination for engineering. It consists of two level process- JEE Main and JEE Advanced. It is held to give admission to IITs, NITs and various others prestigious engineering institutions.

Few questions from the sample paper are given below:

Questions

1.         Hydrazobenzene on treatment with H₂SO₄ gives

            (a)  Azobenzene                                              (b)  Benzidine

            (c)  Azoxybenzene                                          (d) Azobenzene-4-sulphonic acid

2.         The correct IUPAC name of the compound

            (a)  5-Carboxy-3-oxocyclohexane carboxaladehyde

            (b)  2-Carboxy-5-formylcyclo hexane

            (c)  4-formyl-2-oxocyclohexane carboxylic acid                             

            (d) 4-carboxy-3-oxocyclohexanal

3.         Which of the following dyes does not possess antiseptic properties?

            (a)  Acriflavine            (b)  Gentian violet       (c)  Methylene blue     (d) Phenolphthalein

4.         Which of the following is added in Down’s process to reduce the melting point of NaCl?

            (a)  KCl                       (b)  KF                         (c)  KNO₃                    (d) KI

5.         When a nickel salt is heated with boric anhydride a brown coloured bead is formed which is due to the formation of

            (a)  Ni₂B₄O₇                 (b)  NiO                       (c)  Ni(BO₂)₂               (d) None of the above

Hints and Solutions

1.         On treatment with H₂SO₄, hydrozobenzene undergoes benzidine rearrangement to give benzidine.

            So, the correct option is (b)

2.         (c)

3.         (d)

4.         KF is added to NaCl to lower its melting point.

            So, the correct option is (b)

5.         (c)

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