Two reagent bottles in a laboratory are unlabelled. One bottle is known to contain potassium chloride solution while the other contain potassium iodide solution. Which of the following can be used to distinguish the two solutions?

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	Universal indicator
B	Lead(II) nitrate solution
C	Barium nitrate solution
D	Dilute hydrochloric acid

Explanation:

Detailed explanation-1: -A solution composed of iodine and potassium iodide, which can be used as a reagent and antiseptic, with potential use in cancer diagnosis. The iodine in Lugol’s solution selectively binds to alpha-1, 4 glucans found in polysaccharides, such as glycogen.

Detailed explanation-2: -When a solution of potassium iodide is added to a solution of lead nitrate taken in a test tube, the precipitation of a yellowish solid is observed. This yellowish solid is lead iodide. Potassium nitrate is formed along with lead iodide. This is a double displacement reaction.

Detailed explanation-3: -Lead nitrate reacts with potassium iodide to form a yellow precipitate of .

Detailed explanation-4: -Pb ( NO 3 ) 2 ( l ) Lead nitrate + KI ( s ) Potassium iodide → PbI 2 ( s ) Lead iodide + KNO 3 ( l ) Potassium nitrate.

There is 1 question to complete.

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