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Mass of sample in picogram method is ______ gram.
Question

Mass of sample in picogram method is ______ gram.

A.

1–10

B.

< 10⁻¹²

C.

10⁻⁶ – 0.001

D.

0.05 – 0.5 g

Correct option is B


A picogram (pg) is equal to 10⁻¹² grams. It is an extremely small unit used in precise chemical or biological measurements, often for DNA or trace elements.

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