UTpaper

Free mock tests & test series

Question 86Asked in RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)

In the reaction: Zn + CuSO₄ → ZnSO₄ + Cu, what happens to zinc?

  1. AZinc is reduced.
  2. BZinc loses electrons.
  3. CZinc is oxidised.
  4. DZinc does not change.
Show answerHide answer

Correct answer: (C) Zinc is oxidised.

Explanation

Official answer key: (3) Zinc is oxidised. Option 2 (Zinc loses electrons) is also correct, because losing electrons is what oxidation means. Zn → Zn²⁺ + 2e⁻, so zinc is oxidised. Scoring follows the official key.

From RRB JE CBT-1 PYQ 17 Dec 2024, Shift 1 (9:00 AM)

This is question 86 of RRB JE CBT-1 PYQ 17 Dec 2024, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.