1.

Haemoglobin contain 0.33 % of iron by weight. The molecular mass of haemoglobin is approximately 67200. The number ofiron atoms (At mass Fe = 56) present in one molecule of haemoglobins is :

Answer»

6
1
4
2

Solution :Mass of Fe in haemoglobin
`= (67200xx0.33)/(100)=222` (app)
ATOMIC mass of Fe = 56
No. of Fe ATOMS `= (222)/(56)=4` (app.)


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