Chemistry · 2026
JEE Main · 6 April 2026, Shift 1 · Q51
An oxide of iron contains 69.9 % iron, its empirical formula, is: (Given: Molar mass of Fe and O are 56 and 16 g mol^-1 respectively.)
An oxide of iron contains $\displaystyle 69.9 \%$ iron, its empirical formula, is:
(Given : Molar mass of Fe and O are $\displaystyle 56$ and $\displaystyle 16 \mathrm{~g} \mathrm{~mol}^{-1}$ respectively.)
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \mathrm{Fe}_2 \mathrm{O}_3$
More from Some Basic Concepts of Chemistry
- The ratio of mass percentage ( w / w ) of C: H in a hydrocarbon is 12: 1. It has two carbon atoms. The weight…2026
- Number of moles and number of molecules in 1.4187 L of SO_2 at STP respectively are2026
- The correct order of total number of atoms present in 2 moles of cyclohexane 684 g of sucrose 90.8 L of…2026
- How many grams of residue is obtained by heating 2.76 g of silver carbonate? (Given: Molar mass of C, O and…2026
- Which of the following contain the same number of atoms? (Given: Molar mass in g mol^-1 of H, He, O and S are…2026
- What volume of hydrogen gas at STP would be liberated by action of 50 mL of H_2 SO_4 of 50 % purity (density…2026
- The mass of iron converted into Fe_3 O_4 by the action of 18 g of steam is: (Given: Molar mass of H, O and Fe…2026
- Match List - I with List - II. Choose the correct answer from the options given below:2026
JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.