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Following solutions were prepared by mix...

Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
(i) 60 mL (M/10 HCl) + 40 mL (M/10) NaOH
(ii) 55mL (M /10 ) HCl + 45 mL ( M/10) NaOH
(iii) 75 mL (M/5) HCl + 25 mL (M/5) NaOH
(iv) 100 mL (M/10) HCl + 100 mL (M/10) NaOH
pH of which one of them will be equal to 1 ?

A

(iv)

B

(i)

C

(ii)

D

(iii)

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