1.

If P, Q, R and S are elements of 3rd period of p-block in modern periodic table, among these one element is metal and rest are non-metals and their order of electronegativity is given as: P lt Q lt R lt S Q.

Answer»


Solution :In X-O-H, linkage as X is more ELECTRONEGATIVE the SHARED electron pair between O-H shifts more TOWARDS oxyge ATOM annd O-H bond weakens which FACILITATES release of `H^(+)`.


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