1.

Under the influence of an electric field, heparticles in a sol migrate towards cathode. The coagulation of the same sol is studied using \[NaCl,N{{a}_{2}}S{{O}_{4}}\]and \[N{{a}_{3}}P{{O}_{4}}\] solutions. Their coagulating values will be in the order

A. \[NaCl>N{{a}_{2}}S{{O}_{4}}>N{{a}_{3}}P{{O}_{4}}\]
B. \[N{{a}_{2}}S{{O}_{4}}>N{{a}_{3}}P{{O}_{4}}>NaCl\]
C. \[N{{a}_{3}}P{{O}_{4}}>N{{a}_{2}}S{{O}_{4}}>NaCl\]
D. \[N{{a}_{2}}S{{O}_{4}}>NaCl>N{{a}_{3}}P{{O}_{4}}\]
Answer» B. \[N{{a}_{2}}S{{O}_{4}}>N{{a}_{3}}P{{O}_{4}}>NaCl\]


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