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Identify the P, Q, R in the following re...

Identify the P, Q, R in the following reactions
(A) `P + H_(2)O rarr PO + H_(2)`
[PO - is an amphoteric oxide]
(B) `Q + H_(2)0 rarr Q_(2)0_(3) + H_(2)`
[Q - is a trivalent metal]
(C) `R + H_(2)0 rarr R_(3)0_(4) + H_(2)`
[Reaction of 'R' with steam is reversible]

A

`P rarr Mg, Q rarr Al, R rarr Fe`

B

`P rarr Zn, Q rarr Al, R rarr Fe`

C

`P rarr Al, Q rarr Fe, R rarr Zn`

D

`P rarr Fe, Q rarr Mg, R rarr Al`

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