MCQ
$pH$ scale was introduced by
- AArrhenius
- ✓Sorensen
- CLewis
- DLowry
Soren Peder Lauritz Sorensen at the Carlsberg Laboratory in $1909$ and revised to the modern $pH$ in $1924$ to accommodate definitions and measurements in terms of electrochemical cells.
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$(1) Li < Be < B < C (IE_1)$
$(2) Li < Na < K < Rb < Cs$ (Reducing power in gaseous state)
$(3) Li^+ < Na^+ < K^+ < Rb^+ < Cs^+$ (Ionic mobility in aqueous solution)
$(4) S > Se > Te > O [EA]$