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Indian Army GD (Soldier General Duty) Reactivity Series — practice questions

Explore 1 free Reactivity Series questions in Indian Army GD (Soldier General Duty) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Reactivity Series questions and exercises with answers

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When a copper rod is dipped into a solution of zinc sulphate, what happens?Read the answer and worked solution →

Worked practice questions

When a copper rod is dipped into a solution of zinc sulphate, what happens?

  1. Zinc oxide is formed
  2. Copper sulphate is formed
  3. No reaction occurs
  4. Water is formed
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Correct answer: C. No reaction occurs

1. A metal can displace another only if it is more reactive. 2. Copper is less reactive than zinc, so it cannot displace zinc from zinc sulphate. 3. Hence no reaction occurs. _Source: RRB Group D CEN-02/2018 PYQ, Q.75._

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