1. What happens when( write chemical reaction for each)
i)A Magnesium ribbon is burnt in air.
ii)Take a few zinc granules in a conical flask or a test tube.
Add dilute hydrochloric acid to it.
iii)Take lead nitrate
solution in a test
tube.
Add potassium
iodide solution
to this.
iv)Take a small amount of calcium oxide or quick lime in a beaker.Slowly add water to this.
v)Take about 2 g ferrous sulphate crystals
in a dry boiling tube.
Heat the boiling tube over the flame of
a burner .
vi) Take about 2 g silver chloride in a china dish.Place this china dish in sunlight for some time.
vii)Take about 2 g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mix
with the help of a glass rod.
viii) Take an Iron nail. Emerge it in Cooper Sulphate solution for some time.
ix)Take about 3 mL of sodium sulphate
solution in a test tube.
In another test tube, take about 3 mL of
barium chloride solution.
Mix the two solutions.
x)Heat a china dish containing about 1 g
copper powder.
Answers
Explanation:
1. What happens when( write chemical reaction for each)
i)A Magnesium ribbon is burnt in air.
ii)Take a few zinc granules in a conical flask or a test tube.
Add dilute hydrochloric acid to it.
iii)Take lead nitrate
solution in a test
tube.
Add potassium
iodide solution
to this.
iv)Take a small amount of calcium oxide or quick lime in a beaker.Slowly add water to this.
v)Take about 2 g ferrous sulphate crystals
in a dry boiling tube.
Heat the boiling tube over the flame of
a burner .
vi) Take about 2 g silver chloride in a china dish.Place this china dish in sunlight for some time.
vii)Take about 2 g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mix
with the help of a glass rod.
viii) Take an Iron nail. Emerge it in Cooper Sulphate solution for some time.
ix)Take about 3 mL of sodium sulphate
solution in a test tube.
In another test tube, take about 3 mL of
barium chloride solution.
Mix the two solutions.
x)Heat a china dish containing about 1 g
copper powder.