Question

The gold number of A, B C and D are 0.04, 0.002, 10 and 25 respectively. Protective power of A, B, C and D are in order.

• A. $A > B > C > D$
• B. $B > A > C > D$
• C. $D > C > B > A$
• D. $C > A > B > D$

Answer 1

Answer: (B)

$B > A > C > D$

Answer 2

Protective power $\propto \frac { 1 } { \text { Gold number } }$

Hence, the correct order of protective power is $B > A > C > D$.