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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
Insulin contains $3.4\%$ sulphur. The minimum molecular weight of insulin is :
  • ✓
    $941.176$
  • B
    $944$
  • C
    $945.27$
  • D
    None
✓

Answer

Correct option: A.
$941.176$
$3.4g S$ present in $100g$ insulin.
$\therefore 32g S$ is present in $\frac{100}{3.4}\times32=941.176,$ which is equal to the minimum molecular weight of insulin.

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