Question

Assertion (A): Green solution of potassium manganate (VI),

\mathrm{K}_2 \mathrm{MnO}_4

turns purple and brown solid is precipitated when

\mathrm{CO}_2

is bubbled into it.

Reason (R):

\mathrm{K}_2 \mathrm{MnO}_4

changes to

\mathrm{K}_3 \mathrm{MnO}_8

by

\mathrm{CO}_2

.

Accepted Answer

$\mathbf{A}$ is true but $\mathbf{R}$ is false.

Answer

Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$.

Answer

Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is not the correct explanation of $\mathbf{A}$.

Answer

$\mathbf{A}$ is false but $\mathbf{R}$ is true.

NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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