A) \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
B) \[NaCl\]
C) \[Al{{(N{{O}_{3}})}_{3}}\]
D) \[N{{a}_{2}}S{{O}_{4}}\]
Correct Answer: C
Solution :
vant Hoffs factor is equal to the number of ions present in solution. The value of vant Hoffs factor of\[Al{{(N{{O}_{3}})}_{3}}\]is equal to \[{{K}_{3}}[Fe{{(CN)}_{6}}]\]. \[{{K}_{3}}[Fe{{(CN)}_{6}}]\xrightarrow{{}}3{{K}^{+}}+{{[Fe{{(CN)}_{6}}]}^{3-}}\]: 4 ions \[Al{{(N{{O}_{3}})}_{3}}\xrightarrow{{}}A{{l}^{3+}}+3NO_{3}^{-}\] : 4 ions
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