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AP EAMCET2014ChemistrySome Basic Concepts of Chemistry

The oxide of a metal contains 40 % of oxygen. The valency of metal is 2 . What is the atomic weight of metal?

Options

  1. A24
  2. B13
  3. C40
  4. D36

Correct answer

A. 24

Step-by-step solution

40 ~g of oxygen is combined with =60 ~g of metal array r 8 ~g of oxygen will be combined with = 60 8 40 =12 ~g of metal array Equivalent weight of metal =12 Now, Atomic weight = Equivalent weight valency =12 2=24

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