NEET UG CHEMISTRY MCQ: HYDROGEN

1 Hard

1 of 1

Analyzing +4 | -1

Assertion (A) : On adding zinc pieces to

{FeCl}_3(a q)

solution, colour changes from deep yellow to light green.

Reason (R) : Aqueous

{FeCl}_3

solution is acidic and on adding zinc, nascent hydrogen is produced which reduces deep yellow

m{FeCl}_3

solution to light green

{FeCl}_2

solution.

View answer and explanation

Correct option: A

Both

\mathbf{A}

and

\mathbf{R}

are true and

\mathbf{R}

is the correct explanation of

\mathbf{A}

Option A (Both

\mathbf{A}

and

\mathbf{R}

are true and

\mathbf{R}

is the correct explanation of

\mathbf{A}

) is correct because the zinc reduces the iron(III) chloride to iron(II) chloride, causing the color change.

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