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pH of two solutions A and B are 2 and 5 respectively. This means that :

(A) Solution A is 3 times more basic than B

(B) Solution A is 3 times less basic than B

(C) Solution A is 1000 times more basic than B

(D) Solution A is 1000 times less basic than B

$\phantom{\rule{0ex}{0ex}}Fromtheformula,\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}pH=-\mathrm{log}\left[{H}^{+}\right]\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}GivenpHofsolutionsA,Bas2and5respectivelythen,basedonaboveformula\phantom{\rule{0ex}{0ex}}weget\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left[{H}^{+}\right]forsolutionA={10}^{2}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}WhereasforSolutionBis\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left[{H}^{+}\right]={10}^{5}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}HencethisshowsthatSolutionA\hspace{0.17em}is{10}^{3}or1000timeslessbasicthanSolutionB$

Option 'D' is correct

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