JEE Main 2023 — Biomolecules Question with Solution
From: JEE Main 2023 (Online) 24th January Morning Shift
Question
Uracil is a base present in RNA with the following structure. % of N in uracil is ___________
Given:
Molar mass N = 14 g mol
O = 16 g mol
C = 12 g mol
H = 1 g mol
This question includes a diagram. The text above accompanies the figure.
Enter your answer
Show full solutionCorrect answer: 25
Correct answer
25
Step-by-step explanation
Uracil is
Mol. Wt of = 112
by mass of
Mol. Wt of = 112
by mass of
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Biomolecules chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2023, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.