CBSE Class 10 Science 2023 Delhi Set 1

Question : 2 of 39

Marks: +1, -0

When aqueous solutions of potassium iodide and lead nitrate are mixed an insoluble substance separates out. The chemical equation for the reaction involved is:

${\KI}+ {\PbNO}_3 → {\PbI}+ {\KNO}_3$
$2 {\KI}+ {\Pb} ( {\NO}_3) _2 → {\PbI}_2+2 {\KNO}_3$
${\KI}+ {\Pb} ( {\NO}_3) _2 → {\PbI}+ {\KNO}_3$
${\KI}+ {\PbNO}_3 → {\PbI}_2+ {\KNO}_3$

Solution:

A yellow precipitate of lead iodide

( {\PbI}_2)

will be formed.

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