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2g of aluminium is treated, separately w...

2g of aluminium is treated, separately with excess of dilute `H_(2)SO_(4)`, and excess of `NaOH`, the ratio of volumes of hydrogen evolved is

A

`2:3`

B

`1:1`

C

`2:1`

D

`1:2`

Text Solution

Verified by Experts

The correct Answer is:
B
`2Al+3H_(2)SO_(4)rarrAl_(2)(SO_(4))_(3)+3H_(2)`,
`Al+2NaOH+2H_(2)Orarr2NaAlO_(2)+3H_(2)`
Thus ratio of volumes of hydrogen evovled is 1:1
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