Question

Phosphor bronze
Select one
a. contain more than 0.3% phosphorous
b. contain less than 0.3% phosphorous
C.contain more than 0.3% suphur
d.contain more than 0.3% phosphate
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Answer 1

Hey there !

For acids, Normality = molarity×basicity

So, Normality = 0.3×2=0.6

∵ Basicity of H  

3

​  

PO  

3

​  

 is 2 because one of the H is not replaceable in H3PO3. The H atoms which are linked to oxygen are replaceable, but H atom linked directly to central atom P is nonreplaceable.  

Hence, the correct option is B

HOPE IT HELPS YOU !