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P, Q and R are three metals that undergo...

P, Q and R are three metals that undergo chemical reactions as follows:
`P_(2)O_(3)+2QtoQ_(2)O_(3)+2P`
`2P+3ROtoP_(2)O_(3)+3R`
`3RSO_(4)+2QtoQ_(2)(SO_(4))_(3)+3R`
Observe the reactions and arrange the metals in the increasing order of their reactivity.

A

R, P, Q

B

Q, P, R

C

P, Q, R

D

Q, R, P

Text Solution

Verified by Experts

The correct Answer is:
A
Q can replace P from `P_(2)O_(3)`. Thus, Q is more reactive than P. P can replace R from RO. Thus, P is more reactive than R.
Thus, increasing order of reactivity is :
`RltPltQ`
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