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NEET2020Chemistryd and f Block ElementsActual

Match the following aspects with the respective metal. Aspects Metal (a) The metal which reveals a maximum number of oxidation states (p) Scandium (b) The metal although placed in 3 d block is considered not as a transition element (q) Copper (c) The metal which does not exhibit variable oxidation states (r) Manganese (d) The metal which in + 1   oxidation state in aqueous solution undergoes disproportionation (

Options

  1. A(a)-(p), (b)-(s), (c)-(q), (d)-(r)
  2. B(a)-(r), (b)-(s), (c)-(p), (d)-(q)
  3. C(a)-(r), (b)-(p), (c)-(s), (d)-(q)
  4. D(a)-(q), (b)-(s), (c)-(p), (d)-(r)

Correct answer

B. (a)-(r), (b)-(s), (c)-(p), (d)-(q)

Step-by-step solution

In the given options The metal which reveals a maximum number of oxidation state → Mn The metal although placed in 3 d block is considered not as a transition element is → Zn The metal which does not exhibit variable oxidation state is → Sc (only + 3 ) The metal which in + 1 oxidation state in aqueous solution undergoes disproportionation is → Cu

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