A, B and C are compounds of the elements X, Y and Z respectively. X, Y and Z are in the same period
of the periodic table. A gives an aqueous solution of pH less than seven. B reacts with both strong acids
and strong alkalis. C gives an aqueous solution which is strongly alkaline
Which of the following statement is/are true ?
a) The three elements are metals
b) The electronegativities decreases from X to Y to Z.
c) The atomic radius decreases in the order X, Y and Z
d) X, Y and Z could be Phosphorus, Alluminium and Sodium respectively
please answer fast
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Answer:
A is acidic so it belongs to the right side of table and X belongs to the left side of table.
The electronegativities decrease from X to Y to Z.
The atomic radius increases in the order X, Y and Z and X, Y and Z could be phosphorus, aluminium and sodium respectively.
Hence, option C is correct.
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