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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

I, II, III only correct

B

I, III only correct

C

II, IV only correct

D

II, III, IV only correct

Text Solution

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The correct Answer is:
C
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