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WBJEE · Chemistry · Some Basic Concepts of Chemistry

A metal (M) forms two oxides. The ratio \(\mathrm{M}: \mathrm{O}\) (by weight) in the two oxides are \(25: 4\) and \(25: 6\). The minimum value of atomic mass of \(M\) is

  1. A 50
  2. B 100
  3. C 150
  4. D 200
Verified Solution

Answer & Solution

Correct Answer

(B) 100

Step-by-step Solution

Detailed explanation

Let two oxide be \(\mathrm{M}_2 \mathrm{O}_x\) and \(\mathrm{M}_2 \mathrm{Oy}\) \(\underline{\text{As per question}}\) \(\frac{2 a}{16 x}=\frac{25}{4}\) and \(\frac{2 a}{16 y}=\frac{25}{6}\) \(x=\frac{a}{50}, y=\frac{3 a}{100}\) where \(a=\) atomic mass of Metal As \(x\) and…