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The gold numbers of four protective coll...

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,P

Text Solution

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The correct Answer is:
B
Lower is the value of gold number, greater is the protective power.
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