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MHT CET202120 Sep 2021Evening ShiftChemistrySome Basic Concepts of ChemistryActual

What amount of oxygen is used at S.T.P to obtain 9 ~g water from sufficient amount of hydrogen gas?

Options

  1. A5.6 dm ^3
  2. B22.4 dm ^3
  3. C16.8 dm ^3
  4. D11.2 dm ^3

Correct answer

A. 5.6 dm ^3

Step-by-step solution

H _ 2( ~g ) + 1 2 O _ 2( ~g ) H ₂ O _ ( ) 11.2 dm ^3 of O ₂ gives 18 ~g water at STP 9 ~g water is obtained from 112 9 18 =5.6 dm ^3 of O ₂

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