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A,B and C are oxides of elements X,Y and...

A,B and C are oxides of elements X,Y and Z respectively. X,Y and Z are in the same period of the periodic table. A gives an aqueous solution which turns blue litmus red. B reacts with both strong acids and strong alkalies. C gives an aqueous solution which is strongly alkaline. Which of the following statement is/are true ?
(P) All the three elements are metals.
(Q) The electronegativites decreases from X to Y to Z.
(R) The atomic radius increases in the order `X lt Y lt Z`.
(S) X,Y and Z could be phosphorus, aluminium and sodium respectively.

A

P,Q,R only correct

B

P,R only correct

C

Q,S only correct

D

Q,R,S only correct

Text Solution

Verified by Experts

The correct Answer is:
D
`A rarr` acidic oxide, (non-metal) (X)
`B rarr` amphoteric oxide (Y)
`C rarr` basic oxide (metal) (Z)
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