Question

Experiment
2
Identification of the type of reaction
Aim: To idently the type of reaction
(A) Combustion of magnesium strip in air.
(B) Action of dilute sulphuric acid on zinc.
(C) Effect of heat on lead nitrate.
Requirements: Burner or spirit lamp, matchbox, hard glass test tube, test tubes, test tube holder, pair of
tongs, beaker, sandpaper, watchglass or china dish. glass rod, candle, etc.
Chemicals: Magnesium ribbon, zinc dust, dilute sulphuric acid, lead nitrate powder, blue litmus paper.
(A) Combustion of magnesium strip in air
Procedure :
Diagram:
(1) Take a piece of magnesium strip. Using pair of
tongs hold it on the name of a burner.
(2) Collect the remaining ash in watchglass or chma
dish
(3) Idently the type of reaction record the observation
and write the chemical reaction
Baming
White ssh of
wa Chinh
Sirp
Observation table :
Combustion of magnesium strip in air
Reaction Test
Magnesium strip is burnt. 2Mg + O,
2Mgo
Number of reactants
Number of products
Features of the
reaction
Type of reaction
2M
O.
Chemical reaction
2MgO
Mamesam odde
Observations
1) The magnesium strip burns with luminous Name
121 A white coloured powder remains behind
Inference in duis reaction two reactants combine to form one product. Therefore this is a combination
reaction A new substance Mo is formed in the reaction. Hence this change is a chemical change.
Preout
Mesiam strip should be held by a pair of tons
121 is better to use to protect your eyes from dating lidt of burning magnesium strip​

Answer 1

Answer:

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