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The value of n in the molecular formula ...

The value of n in the molecular formula `Be_(n)Al_(2)Si_(6)O_(18)` is:

Text Solution

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The correct Answer is:
3
Since net charge on the neutral molecule is zero therefore for the given molecule `Be_(n)"AII"_(2)Si_(6)O_(18)`
`n(+2)+2(+3)+6(+4)+18(-2)=0`
or 2n+6+24-36=0 or 2n=6
n=3
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Which type of sillcate compound, Beryl (Be_(3)Al_(2)Si_(6)O_(18)) is?

Knowledge Check

  • Compound having molecular formula C_(3)H_(6)O_(2) is:-

    A
    `C_(2)H_(5)-COOH`
    B
    `HCOOC_(2)H_(5)`
    C
    `CH_(3)COCH_(3)`
    D
    Both (a) and (b)

  • Which type of sillcate compound, Beryl (Be_(3)Al_(2)Si_(6)O_(18)) is?

    A
    Chain silicate
    B
    Cyclic sillicate
    C
    Planar silicate
    D
    Disilicate