JEE Main 2020 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 5 September 2020, Shift 1, Chemistry Q47

Question 47 of 75 in this shift, Chemistry question 22 of 25.

The minimum number of moles of

\mathrm{O_2}

required for complete combustion of 1 mole of propane and 2 moles of butane is __________.

Official answer

18.00

NTA final key (Sep 2020).

Chapter: Some Basic Concepts of Chemistry
Topic: Stoichiometry
Idea tested: Hydrocarbon Combustion General Equation

Same idea in other shifts

Asked 4× in all

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25 Jul 2021, Shift 1 · Q59Consider the complete combustion of butane, the amount of butane utilized to produce 72.0 g of water is ________ $\times10^{-1}$ g. (in…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.