Thank you for reporting, we will resolve it shortly
Q.
Three most abundant elements in protoplasm are
Uttarkhand PMTUttarkhand PMT 2007
Solution:
Three most abundant elements in protoplasm are $C, H$ and $ O_{2} $ . Nitrogen is also present in protoplasm all these $4$ making $90\%$ of protoplasm. The largest constituent element of protoplasm is $ O_{2} $ by weight ($63\%$).