KVPY Sample Paper KVPY Stream-SX Model Paper-17

The substances, P, Q and R have coagulation values 3, 0.6, 0.08 for a metal sol respectively. Their flocculating Power are in the ratio:

A) 0.0267 : 5 : 1

B) 1 : 5 : 37.5

C) 0.08 : 0.6 : 3

D) 1 : 0.2 : 0.0267

Correct Answer: B

Solution :

\[\text{Flocculation power}\propto \frac{1}{\text{coagulatin value}}\]

or \[\begin{matrix} P & : & Q & : & R \\ \frac{1}{3} & : & \frac{1}{0.6} & : & \frac{1}{0.08} \\ 1 & : & 5 & : & 37.5 \\ \end{matrix}\]