JEE Main 2023 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 6 April 2023, Shift 1, Chemistry Q81

Question 81 of 90 in this shift, Chemistry question 21 of 30, Section B.

If 5 moles of

\mathrm{BaCl_2}

is mixed with 2 moles of

\mathrm{Na_3PO_4}

, the maximum number of moles of

\mathrm{Ba_3(PO_4)_2}

formed is ____________ (Nearest integer)

Official answer

NTA final key.

Chapter: Some Basic Concepts of Chemistry
Topic: Mole Concept
Idea tested: Limiting Reagent and Reaction Yield

Same idea in other shifts

Asked 6× in all

1 Feb 2024, Shift 1 · Q81Consider the following reaction : $\mathrm{3PbCl_2 + 2(NH_4)_3PO_4 \rightarrow Pb_3(PO_4)_2 + 6NH_4Cl}$ If 72 mmol of $\mathrm{PbCl_2}$ is…EasyNumerical value
28 Jul 2022, Shift 1 · Q81In the given reaction, $\mathrm{X+Y+3Z\rightleftharpoons XYZ_3}$ if one mole of each of X and Y with 0.05 mol of Z gives compound…MediumNumerical value
26 Jun 2022, Shift 2 · Q81CNG is an important transportation fuel. When 100 g CNG is mixed with 208 g oxygen in vehicles, it leads to the formation of…MediumNumerical value
26 Jun 2022, Shift 2 · Q90The moles of methane required to produce 81 g of water after complete combustion is ________ $\times\,10^{-2}$ mol. [nearest integer]EasyNumerical value
4 Sep 2020, Shift 1 · Q46The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively reacts with 1 kg of dihydrogen is __________.EasyNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.