A freshly formed ppt of SnO2 is peptized by a small amount of NaOH: These colloidal particles maybe represented as

A freshly formed ppt of SnO₂ is peptized by a small amount of NaOH: These colloidal particles maybe represented as

A
$[{SnO}_{2}] {SnO}_{3}^{2 -}; 2 {Na}^{+}$
B
$[{SnO}_{2}] {Sn}^{4 +}; O^{2 -}$
C
$[{SnO}_{2}] {Na}^{+}; {OH}^{-}$
D
$[{SnO}_{2}] {Sn}^{4 +}; {OH}^{-}$

Solution:

$[{SnO}_{2}] {SnO}_{3}^{2 -}; 2 {Na}^{+}$

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