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JEE Advanced2006ChemistryChemical KineticsActual

Paragraph: Carbon-14 is used to determine the age of organic material. The procedure is based on the formation of ¹⁴ C by neutron capture in the upper atmosphere. ₇¹⁴ ~N + ₀^1 n ₆¹⁴ C + ₁ n^1 ¹⁴ C is absorbed by living organisms during photosynthesis. The ¹⁴ C content is constant in living organism once the plant or animal dies, the uptake of carbon dioxide by it ceases and the level of ¹⁴ C in the dead being, falls

Options

  1. A6 years
  2. B6000 years
  3. C60,000 years
  4. DIt can be used to calculate any age

Correct answer

B. 6000 years

Step-by-step solution

Radio carbon dating method ceases to be accurate over periods longer than 30,000 years.

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