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ICSE Class 10 Chemistry 2023 Paper

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SECTION - I
Choose the correct answers to the questions from the given options.
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Question : 4 of 88
Marks: +1, -0
The vapour density of CH3OH\mathrm{CH}_3 \mathrm{OH} is...........
(At. Wt. C=12,H=1,O=16C=12, H=1, O=16 )
Solution:  
(c) 16
Explanation:
     Vapour density   =     Molecular mass   2\;\;\text{ Vapour density }\;=\;\frac{\;\text{ Molecular mass }\;}{2}
     molecular mass of   CH3OH\;\;\text{ molecular mass of }\; \mathrm{CH}_3 \mathrm{OH}
  =12+4+16=32\; =12+4+16=32
     V.D.   =  322=16\;\;\text{ V.D. }\;=\;\frac{32}{2}=16
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