SarkariPYQ

SSC CHSL 2020 PYQ — Question 45

SSC CHSL - 20th October 2020 - Shift 1 • General Awareness • Q45

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Which of the following observations does not help in determining whether a chemical reaction has taken place?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Change in height.

  • The observations that help us to determine whether a chemical reaction has taken place  are:
  1. Change in the state.
  2. Change in colour.
  3. Evolution of a gas.
  4. Change in temperature.