Assertion :Ferricyanide ion, used to make Turnbull's blue. Reason: Prussian blue is a microcrystalline blue powder. It is insoluble, but the crystallites tend to form a colloid. Such colloids can pass through fine filters.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion Turnbulls blue :
K+Fe+3+[Fe11(CN)6]−4⟶KFe111[Fe11(CN)6]
(Ferricynaide)
Prussian blue is micro crystalline and form colloids. Colloids can pass through fine filters.
Reason not related to assertion. Hence not correct explanation.