Q50 / 180 · AIIMS 2003 · Chemistry

Assertion : Barium is not required for normal biological function in human. Reason : Barium does not show variable oxidation state.

  • Correct answer
    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion
  • B
    If both assertion and reason are true and the reason is not the correct explanation of the assertion
  • C
    If assertion is true but reason is false
  • D
    If both assertion and reason are false.

Solution

$\mathrm{Ba}-$ (Xe) $6 s^2$ It shows oxidation state of + II only.

Hence, the correct answer is option: 'A'.

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