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ECAT (Engineering College Admission) Chemistry: Past Papers MCQs with Answers

Practise ECAT (Engineering College Admission) Chemistry past papers MCQs in sets of about 20 questions with instant answers and explanations. This page focuses on questions drawn from previous exam papers and official patterns, helping you build accuracy and speed for the actual ECAT (Engineering College Admission) paper.

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Sample ECAT (Engineering College Admission) Chemistry past papers questions

  1. Q1. The number of sigma bonds in CH4 is

    • A) 4
    • B) 3
    • C) 2
    • D) 1

    Answer: 4

  2. Q2. For the reaction 2A ⇌ B, if KC = 4, then for A ⇌ 1/2B, KC' is

    • A) 2
    • B) √4
    • C) 4²
    • D) 1/2

    Answer: √4

  3. Q3. The molar volume of an ideal gas at 1 atm and 0°C is

    • A) 22.4 L
    • B) 11.2 L
    • C) 20 L
    • D) 24 L

    Answer: 22.4 L

  4. Q4. The number of π bonds in benzene is

    • A) 3
    • B) 4
    • C) 5
    • D) 6

    Answer: 3

  5. Q5. Which nucleotide is NOT a component of DNA?

    • A) dATP
    • B) dGTP
    • C) dCTP
    • D) UTP

    Answer: UTP

Frequently asked questions

What are past papers Chemistry MCQs for ECAT (Engineering College Admission)?

Past Papers Chemistry MCQs are questions drawn from previous exam papers and official patterns. On Imtehan they are grouped into short sets so you can review one topic at a time before moving to timed mocks.

How many ECAT (Engineering College Admission) Chemistry past papers questions can I practise?

Imtehan organises ECAT (Engineering College Admission) Chemistry questions into multiple sets. Start with the sample questions below, then open a set to practise interactively with scoring and explanations.

Is ECAT (Engineering College Admission) Chemistry past papers practice free?

Yes — you can practise ECAT (Engineering College Admission) Chemistry MCQs for free on Imtehan. Premium unlocks detailed analytics and unlimited mock attempts.

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