1.

Chamical formula of clay is ……………. .

Answer»

`Al_(2)O_(3)`
`Al_(2)O_(3)`. `2H_(2)O`
`Al_(2)O_(3)`. `2SiO_(2)`.`2H_(2)O`
`Al_(2)O_(3)`.`2SiO_(2)`.`2H_(2)O`

ANSWER :C


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