please find me this

5 mL of N HCI, 20 mL of N/2 H2SO4 and 30 mL of N/3 HNO3, are mixed together and volume made one litre. The normality of the resulting solution is:
(1) N/5
(2) N/10
(3) N/20
(4) N/40
 

Dear student 
The correct option is 4 

Regards 

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