Malti a housewife used to get his gold jewellary cleaned by a goldsmith at no cost. Her daughter Rekha, a chemistry student once accompanied her mother to the jeweller’s shop where she observed that goldsmith used to keep all jewellery in a solution and then return it after washing, so she asked her mother to avoid such cleaning.Answer following questions as per above passage.What chemical did you think in which jewelleries were dipped?Which substance goldsmith used to recover gold from solution?What is the IUPAC names of complex formed with added substance and content of the solution?What are the values associated with Rekha’s advice?

Malti a housewife used to get his gold jewellary cleaned by a goldsmit

1.	Malti a housewife used to get his gold jewellary cleaned by a goldsmith at no cost. Her daughter Rekha, a chemistry student once accompanied her mother to the jeweller’s shop where she observed that goldsmith used to keep all jewellery in a solution and then return it after washing, so she asked her mother to avoid such cleaning.Answer following questions as per above passage.What chemical did you think in which jewelleries were dipped?Which substance goldsmith used to recover gold from solution?What is the IUPAC names of complex formed with added substance and content of the solution?What are the values associated with Rekha’s advice?
Answer» NaCN or KCN solution Zinc dust Au + NaCN → Na [Au(CN)₂] IUPAC name is Sodium dicyanidoaurate (I). Concern for family, knowledge of chemistry, keen observation.

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