Anhydrous mercurous chloride can be prepared by : — d and f Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Iron (Fe) is one of the most abundant elements on Earth, making up approximately 5% of the Earth's crust by weight. Step 2: Comparing the transition metals in the options (Zn, Fe, Hg, Au), Iron is by far the most abundant in geological formations. Step 3: Therefore, iron (Fe) is the most abundant transition metal in the Earth's crust, corresponding to option (b).