Question

Which of the following metals are moderately reactive in nature?
(i) Zinc (ii) Gold
(iii) Sodium (iv) Iron

• A. (ii) and (iii)
• B. (i) and (iii)
• C. Only (ii)
• D. (i) and (iv)

Answer 1

The correct option is D (i) and (iv)

Metals are arranged in a series according to their reactivity and the series is known as the activity series of metals.
Highly reactive metals like potassium, sodium are placed at the top of the reactivity series and metals like copper, silver and gold are at the bottom of the reactivity series. Iron, zinc are moderately reactive metals and are placed at the middle of the reactive series. So, zinc and iron are the correct answer.