Read the following statement and explanation and answer as per the options given below:

STATEMENT (S): In the titration of Na₂CO₃ with HCl using methyl orange indicator, the volume required at the equivalence point is twice that of the acid required using phenolphthalein indicator.

EXPLANATION (E): Two moles of HCl are required for the complete neutralization of one mole of Na₂CO₃

The oxidation number of phosphorus in Ba(H₂PO₂) is :

The equivalent weight of MnSO₄ is half of its molecular weight, when it converts to

In which mode of expression, the concentration of a solution remains independent of temperature?