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The TLV values of four pollutants A, B, ...

The TLV values of four pollutants A, B, C and Dare 9ppm, 10ppm, 100ppm and 500 ppm respectively. The most toxic amount them is

A

A

B

B

C

C

D

D

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The correct Answer is:
A
Lower TLV value - most toxic
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-PRACTICE SHEET (STRAIGHT OBJECTIVE TYPE QUESTIONS)
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