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

Options

A. `1.568 xx 10^(-4)`
B. `1.568 xx 10^(3)`
C. `15.68`
D. `3.136 xx 10^(4)`

Answer

A

Explanation

0.5g `Se to 100` g peroxidase anhydrous enzyme
`78.4 4g Se to (100 xx 78.4)/(0.5) = 1.568 xx 10^(4)`
Minimum m.w `to` molecules at least contains one selenium.