Question

4. A small piece of calcium metal is put into a small trough containing water.There is effervescence and white turbidity is formed. a) Name the gas formed in the reaction.How would you test the gas? b) Write an equation for the reaction. c) What do you observe when a few drops of red litmus solution are added to the turbid solution? d)What happens if dilute hydrochloric acid is added to the turbid solution?Write the equations for the reaction.

Answer 1

Observation:It turns blue . This is because when few drops of red litmus solution is added to the turbid solution,calcium hydroxide being basic changes its colour.

Explanation:

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