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A certain element is forms a solid oxide...

A certain element is forms a solid oxide which dissolves in water to form an acidic solution. The element is

A

Na

B

Mg

C

S

D

P

Text Solution

Verified by Experts

The correct Answer is:
D
`P_4 + O_2 rarr P_4 O_10` or `P_4 O_8` or `P_4 O_6`
`P_4 O_10 + 4 H_2 O rarr 4 H_3 PO_4`
`P_4 O_8 + 4 H_2 O rarr 2 H_3 PO_4 + 2H_3 PO_3`
`P_4 O_6 + 4 H_2 O rarr 4 H_3 PO_3`.
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