Q37 · CSIR-NET Chemistry, June 2021

Paper: CSIR-NET June 2021 · Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Marks: 2 · Difficulty: Medium

For a person weighing 70 kg the minimal volume (in mL ) of a fatal dose of a compound with $\mathrm{LD}_{50}=80 \mathrm{mg} . \mathrm{kg}^{-1}$, and density = $1.45 \mathrm{g} . \mathrm{mL}^{-1}$ is

(a)5.6

(b)3.9

(c)0.8

(d)0.4

Answer

Answer: B ✓ checked by 4AB · confidence high

The source book printed no answer; this one was worked out and checked — see the explanation.

Explanation

Dose = 70 × 80 = 5600 mg = 5.6 g; volume = 5.6/1.45 = 3.9 mL.

Study loop for Chemical Kinetics

1. Practise the PYQsPrevious-year questions, with answers

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