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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Apr 2008 11:40:54 IST
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in the first one HCl is a strong acid ...so it will not act as a buffer. in the second one as HCN is a weak acid and calcium hydroxide is a base so it is not true from the definition of buffer... so the only option that remains is C)
rate if satisfied.....l
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