Which of the following reactions leads to the formation of a substance – InterviewSolution

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1.	Which of the following reactions leads to the formation of a substance in colloidal state?
Answer» `2HNO_3+3H_2S to 3S+3H_2O+2NO` `SnCl_2+HgCl_2 to SnCl_2+Hg` `2Mg+CO_2 to 2MgO+C` `Cu+CuCl_2 to Cu_2Cl_2` Solution :DUE to oxidation of `H_2S` by `HNO_3` colloidal PARTICLES of SULPHUR (`S_8`) are FORMED. In other CASES, particles of colloidal size are not formed.

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