Statement I: In the coagulation of a negative sol, the flocculating power of the three given ions is in the order - $Al^{3+} > Ba^{2+} > Na^{+}$ $\\$ Statement II: In the coagulation of a positive sol, the flocculating power of the three given salts is in the order - NaCl > $Na_{2}SO_{4}$ > $Na_{3}PO_{4}$ Choose the most appropriate answer from the options given below :