please answer this.....
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1) weak acid - sol Q
2) strong alkali - sol R
Explanation:
1) this because PH value 7 is considered to be neutral also the the sol having PH value less than seven is considered to be acidic
so sol P &Q are acidic and among them PH of Q is more close to be neutral so it is weak acid.
2) in case of base the PH is considered to be more than 7 and so the sol R is basic and as it has a PH of 12.2 so it is strong alkali.
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