Question
Chemistry Question on Colloids
The gold numbers of four protective colloids O, P, Q and R are 0.005, 0.01, 0.1 and 0.5 respectively. The decreasing order of their protective power is
A
R, Q, P, O
B
O, P, Q, R
C
P, Q, R, O
D
Q, R, O
Answer
O, P, Q, R
Explanation
Solution
Lower is the value of gold number, greater is the protective power