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Each mole of substance A (Molar mass =72...

Each mole of substance A (Molar mass =720 ) required 10 moles of water for complete hydrolysis and gives B,C and D as the hydrolysed product in a molar ratio of 2:3:2. if molecular mass of B is 40 and it contributes 40% of total mass of hydrolysed product then moles of C obtained will be

A

9

B

13.5

C

3

D

2

Text Solution

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The correct Answer is:
B
`A+10H_(2)O to B +C +D`
`720+10xx18=900 " " 2x " " 3x " "2x`
Mass of B =900x 0.4 =360 gm
Moles of B `=360/40 =9=2x rArr x=4.5`
`n_(C)=3x=3xx4.5=13.5`
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