Question

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
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Turnbulls blue :

$K+{Fe}^{+3}+{\left[{Fe}^{11}{\left(CN\right)}_6\right]}^{-4}⟶K{Fe}^{111}\left[{Fe}^{11}{\left(CN\right)}_6\right]$

(Ferricynaide)

Prussian blue is micro crystalline and form colloids. Colloids can pass through fine filters.

Reason not related to assertion. Hence not correct explanation.