Some Basic Concepts Of Chemistry Question 220
Question: The percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (atomic weight=78.4). Then minimum molecular weight of peroxidase anhydrous enzyme is [CBSE PMT 2001]
Options:
A) $ 1.568\times 10^{4} $
B) $ 1.568\times 10^{3} $
C) $ 15.68 $
D) $ 3.136\times 10^{4} $
Show Answer
Answer:
Correct Answer: A
Solution:
0.5gm Se $ \to $ 100gm peroxidase anhydrous enzyme 78.4gm Se $ \to \frac{100\times 78.4}{0.5}=1.568\times 10^{4} $
Minimum m.w. $ \to $ molecule at least contain one selenium.
