JEE Main 2019ChemistrySome Basic Concepts Of ChemistryQuantitative Measures In Chemical EquationsmediumMCQ

JEE Main 2019Some Basic Concepts Of Chemistry Question with Solution

From: JEE Main 2019 (Online) 9th April Morning Slot

Question

For a reaction,
N2(g) + 3H2(g) 2NH3(g) ;
identify dihydrogen (H2) as a limiting reagent in the following reaction mixtures.

Choose an option

Show full solutionCorrect option: A
Correct answer
A56g of N2 + 10g of H2

Step-by-step explanation

Here you have to check every options to find answer.

N2(g) + 3H2(g) 2NH3(g)

For dihydrogen (H2) to become a limiting reagent,

should be

less than .

Here in 56g of N2 + 10g of H2,

Moles of N2 = = 2

and Moles of H2 = = 5

Now by dividing stoichiometric coefficient we get,

For N2 = = 2

For H2 = = 1.67

Here H2 is the limiting reagent.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Some Basic Concepts Of Chemistry 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 2019, covering the Some Basic Concepts Of Chemistry 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.