Question

21. Consider the following statements
1. The basicity of phosphorous acid, H3PO, is three
2. 1 mole of a substance contains 6.023 x 1023 particles
3. The oxidation state of Mno,2- is +6
Which of the statement(s) given above is I are not true?
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1 only​

Answer 1

Answer:

Effluent containing phenol contamination can be treated using ozone (O3), activated carbon or reverse osmosis. However, ozone can prove to be a complex and 'scattergun' treatment approach, particularly when the phenol is present in low concentrations

Answer 2

Answer:

1 and3 pls follow me and like