Pungency in radish is due to:

Correct option is D

Correct Answer: (D) Isothiocyanates ✅

Explanation:
Pungency in radish is caused by isothiocyanates, which are produced from the hydrolysis of glucosinolates (mainly by the enzyme myrosinase). These sulfur-containing compounds are characteristic of crops in the Brassicaceae family, including radish, mustard, and cabbage.

• Capsaicin → responsible for pungency in chilli

• Allyl propyl disulphide → responsible for pungency in onion

• Momordin → found in bitter gourd

So, the accurate answer is (D) Isothiocyanates.