Question

Write the Balanced Chemical Equation for each of the following conversions. [3]
i. Evolution of a colourless gas when trivalent metal is treated with Hot & conc. Caustic soda.
ii. When Iron is treated with dil. Sulphuric acid.
iii. A soluble blue colour salt of copper is converted to insoluble pale blue colour precipitate.

Answer 1

Answer

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