Show an activity to explain what happen when metal react with base
Answers
Answer:
Aim : To show the reaction of acids with metals.
Required Materials : 1. Test tube 2. Delivery tube 3. Glass trough 4. candle 5. Soap water 6. Dil. HCl 7. Zinc granules.
Procedure :
Set the apparatus as shown in figure.
Take about 10 ml of dilute HCl in a test tube and add a few zinc granules to it.
We will observe the formation of gas bubbles on the surface of zinc granules.
Pass the gas being evolved through the soap water.
Gas filled bubbles are formed in the soap solution which rise into the air.
Bring a burning candle near the gas filled bubbles.
The gas present in a soap bubble burns with a ‘pop’ sound.
Result:
Only ‘hydrogen’ gas burns making a ‘pop’ sound.
So we will notice that gas evolved is ${ H }_{ 2 }$.
• (Picture Of Chemical Reaction)
Additional Experiment:
Repeat the above experiment with $H_{2}SO_{4}$ and $HN{{O}_{3}}$.
We observe the same observation of the HCl experiment.
Conclusion : From the above activities we can conclude that when acid reacts with metal, ${ H }_{ 2 }$gas is evolved
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Explanation:
Answer:
Aim - to show the reaction of acids with metals
required materials - test tube, delivery tube, glass through, candle, soap water, dilute hcl, zinc granules
procedure - set the apparatus as shown in the figure take about 10 ml of delight HCL in a test tube and add a few zinc granules to it. pass the gas being evolved through soap water. gas filled Bubbles are formed in a soap solution which rice into the airbring a burning candle near the gas filled Bubbles the gas present in the soap bubbles burns with a pop sound
Result only hydrogen gas burns making a Pop sound so we will notice that gas evolved is after this in the picture above
