Question

Which of the following cations is involved in formation of chlorophyll molecule in plants?

• A. \(\mathrm{Na}^{+}\)
• B. \(\mathrm{Sr}^{2+}\)
• C. \(\mathrm{Mg}^{2+}\)
• D. \(\mathrm{Ca}^{2+}\)

Hint:

Chlorophyll has a metal ion at the centre of a porphyrin-type ring.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Chlorophyll is a coordination compound of a porphyrin ring bonded to a central metal ion.

Step 2: Identify
The central metal ion in chlorophyll is magnesium, \(\text{Mg}^{2+}\).

Step 3: Compare the options
\(\text{Mg}^{2+}\) is option (C).

Final Answer:
The cation in chlorophyll is \(\text{Mg}^{2+}\). \[ \boxed{\text{(C) }\mathrm{Mg}^{2+}} \]