JEE Main 2026 · 4 Apr · Shift 2 · Chemistry Q51 · Dronacharya Exams

My attemptsTake a paper

← JEE Main 2026 · 4 Apr · Shift 2

ChemistrySingle correct+4 / -1Question 51 of 75

The correct order of total number of atoms present in

(A) 2 moles of cyclohexane

(B) 684 g of sucrose

(C) 90.8 L of dihydrogen at STP

is:

A

C > A > B

B

C > B > A

C

B > C > A

D

B > A > C

Answer and worked solution

Official answer: D

Atoms in each.

A: 2 mol $\ce{C6H12}$ has $2\times18=36$ mol of atoms.
B: 684 g sucrose is 2 mol $\ce{C12H22O11}$ , with $2\times45=90$ mol of atoms.
C: 90.8 L at STP (22.7 L mol⁻¹) is 4 mol $\ce{H2}$ , i.e. 8 mol of atoms.

Order B > A > C.

(D)

Topics:Mole concept

← Previous question Next question →