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AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

AIIMS 2008 · Chemistry · Some Basic Concepts of Chemistry

Percentage of Se (at. mass =78.4) in peroxidase anhydrase enzyme is...

Percentage of Se (at. mass =78.4)=78.4) in peroxidase anhydrase enzyme is (0.5 \%) by weight, then minimum molecular mass of peroxidase anhydrase enzyme is

Options

  1. A(1.576 \times 10^4)
  2. B(1.576 \times 10^3)
  3. C15.76
  4. D(2.136 \times 10^4).

Correct answer

A. (1.576 \times 10^4)

Step-by-step solution

The enzyme must contain at least one atom of Se. ∵0.5 g\because \quad 0.5 \mathrm{~g} of Se is present in 100 g100 \mathrm{~g} of enzyme ∴78.4 g\therefore \quad 78.4 \mathrm{~g} of Se will be present in =100×78.40.5=\frac{100 \times 78.4}{0.5} =1.576×104 g=1.576 \times 10^4 \mathrm{~g} of enzymes
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