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MODEL PAPER 9 — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER 91 Mark
MCQ
Assertion (A): Copper spoon is used to stir silver nitrate solution.
Reason (R): Copper is less reactive than silver
  • A
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true but R is not the correct explanation of A.
  • C
    A is true but R is false
  • D
    A is false but R is true
✓

Answer

(c) A is true but R is false
Explanation: Silver's reactivity according to the reactivity series is lesser than that of copper (Cu). So, we cannot stir the
solution as the solution would be displaced by copper. We should instead use a glass rod for this. Thus assertion is true, but
reason is false.

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