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If gold number of A, B, C, and D are 0.0...

If gold number of `A, B, C, and D` are `0.005, 0.05, 0.5 and 5` respectively , then which of the following will have the highest protective power

A

`A`

B

`B`

C

`C`

D

`D`

Text Solution

Verified by Experts

The correct Answer is:
A
protective power `prop (1)/("Gold number")`
Gold number of `A` is least, therefore, it has the highest protective power.
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