JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The number of moles of lead nitrate needed to coagulate 2 moles of colloidal is

(A)2
(B)1Correct
(C)1/2
(D)2/3

Answer: (B)

Solution

Each formula unit of the negatively charged colloid carries one unit of negative charge, so 2 moles of this colloid carry 2 moles of negative charge that must be neutralised. supplies

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Question ID VK-144759