Ritika took four metals `P, Q, R` and `S` and added them to following solutions one by one. The results are summarised in the given table.

Which of the following statements are correct ?
I. Among the given metals, `Q` is the most reactive metal.
II. `S` is less reactive than `Zn` but more reactive than `Ag`.
III. `R` is less reactive than `Ag` but more reactive than `Zn`.
IV. `P` is more reactive than `Cu` but less reactive than `Fe`.

Options

A. I and III only
B. II and IV only
C. I and IV only
D. II and III only

Answer

C

Explanation

R is more reactive than Ag but less reactive than Zn. S is less reactive than Ag.