PYQ Vault

Day 182: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Hydrocarbons. Asked once: 2 Apr 2026 S1 (same type asked 2 times) See all 2 of this type

    48
    One mole of an alkane (x) requires 8 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the alkane ( x ) is____\_\_\_\_ .
  2. Question 2

    The d- and f-Block Elements. Asked once: 27 Jan 2024 (same type asked 2 times) See all 2 of this type

    140
    Identify the incorrect pair from the following:

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  3. Question 3

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 30 Jan 2024 (same type asked 2 times) See all 2 of this type

    57
    The compound formed by the reaction of ethanal with semicarbazide contains ______ number of nitrogen atoms
  4. Question 4

    Coordination Compounds. Asked once: 2021 Paper 15 (same type asked 2 times) See all 2 of this type

    37
    Which compound is most stable?

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  5. Question 5

    Hydrocarbons. Asked once: 24 Jan 2026 S1 (same type asked 2 times) See all 2 of this type

    28
    Arrange the following alkenes in decreasing order of stability. (I) (II) (III) (IV) Choose the correct answer from the options given below :

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