JEE Main 2012 — Some Basic Concepts of Chemistry Question with Solution
JEE Main 2012 (19 May Online)
Question
When is passed over red hot coke it partially gets reduced to . Upon passing of over red hot coke, the total volume of the gases increased to . The composition of the gaseous mixture at STP is
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Stoichoimetry ratio is
AT STP,
Initial moles of initial
In final mixture no. of moles; mixture)
Increase in volume is by mole of gas
Final no. of moles of i.e.
Substituting (ii) in eq. (i)
Volume of Litre
and volume of litre litre litre
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This is a previous-year question from JEE Main 2012, 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.