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The chemical formula of rust is ……….....

The chemical formula of rust is `………..`

A

`Fe_2O_3.x H_2O`

B

`FeO.xH_2O`

C

`Fe_2O_3`

D

`FeO`

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Knowledge Check

  • The chemical formula of the rust is

    A
    `Fe_(2)O_(3).x H_(2)O`
    B
    `FeO.xH_(2)O`
    C
    `Fe_2O_3`
    D
    FeO

  • The chemical formula of borax is

    A
    `NaBO_2`
    B
    `B_2O_3`
    C
    `Na_2 B_4 O_7 . 10 H_2O`
    D
    `NaBO_2 . 5H_2O`

  • The chemical formula of starch is

    A
    `(C_(6)H_(10)O_(5))_(n)`
    B
    `(C_(6)H_(12)O_(6))_(n)`
    C
    `C_(12)H_(22)O_(11)`
    D
    `CH_(3)COOH`

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