Multiple choice

Rinman's green is obtained by the combination of which of the following salts?

  1. Zinc and sodium hydroxide

  2. Zinc and copper sulphate

  3. Zinc chloride and sodium bicarbonate

  4. Cobalt nitrate and zinc oxide

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because cobalt nitrate on heating at high temperature with zinc oxide produces cobalt zincate. This is called as Rinmann's green.

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