SolutionHard
Question
Persons are medically considered to have lead poisoning if they have a concentration greater than 10 micrograms of lead per decilitre of blood. Concentration in parts per billion is :
Options
A.1000
B.100
C.10
D.1
Solution
10 μg per decilitre
⇒ 10 × 10-6 g in 100 mL
∴ 109 parts (1 billion) has =
× 109 g = 100 g
⇒ 10 × 10-6 g in 100 mL
∴ 109 parts (1 billion) has =
× 109 g = 100 g Create a free account to view solution
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