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We mix equal volume of two aqueous solut...

We mix equal volume of two aqueous solution.Match the following :
`{:("Column-I","Column-II"),((A)"0.2 M KOH+ 0.5 M HCOOH", (p)0.7),((B)0.1 M NaCl+0.1 M NaNO_3,(q)between 1 "to "7),((C )0.1 M NH_4Cl+0.1 M NaOH,(r)7),((D)0.5 M HCl+0.1 M NH_4OH,(s)"greater than" 7),([log_10 2=0.3],(t)"less than 7"):}`

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The correct Answer is:
A-q,t B-r , C-s , D-p,t
(A)acidic buffer will form (B)both are salt of SASB ( C )weak base `NH_4OH` will form (D)remain strong acid solution
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