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Apparatus: Big test tube, delivery tube ...

Apparatus: Big test tube, delivery tube fitted in a rubber cork, knife, candle, etc.
Chemicals : Sodium metal, ethanol, magnesium ribbon, etc.
Procedure : Take 10 mL ethanol in a big test tube. Cut Sodium metal into 2-3 pieces of a cereal grain size. Put the sodium pieces into the ethanol in the test tube and fix the gas delivery tube to the test tube. Take a burning candle near the outlet of the gas delivery tube and observe.
Repeat the above procedure using magnesium ribbon instead of sodium. Do you see gas bubble released from the piece of magnesium ribbon?

Text Solution

Verified by Experts

No, when magnesium ribbon is added to ethanol, gas bubbles are not observed.
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Apparatus: Big test tube, delivery tube fitted in a rubber cork, knife, candle, etc. Chemicals : Sodium metal, ethanol, magnesium ribbon, etc. Procedure : Take 10 mL ethanol in a big test tube. Cut Sodium metal into 2-3 pieces of a cereal grain size. Put the sodium pieces into the ethanol in the test tube and fix the gas delivery tube to the test tube. Take a burning candle near the outlet of the gas delivery tube and observe. Does magnesium metal react with ethanol?

Apparatus: Big test tube, delivery tube fitted in a rubber cork, knife, candle, etc. Chemicals : Sodium metal, ethanol, magnesium ribbon, etc. Procedure : Take 10 mL ethanol in a big test tube. Cut Sodium metal into 2-3 pieces of a cereal grain size. Put the sodium pieces into the ethanol in the test tube and fix the gas delivery tube to the test tube. Take a burning candle near the outlet of the gas delivery tube and observe. Why do the sodium pieces appear to dance on the surface of ethanol?

Apparatus: Big test tube, delivery tube fitted in a rubber cork, knife, candle, etc. Chemicals : Sodium metal, ethanol, magnesium ribbon, etc. Procedure : Take 10 mL ethanol in a big test tube. Cut Sodium metal into 2-3 pieces of a cereal grain size. Put the sodium pieces into the ethanol in the test tube and fix the gas delivery tube to the test tube. Take a burning candle near the outlet of the gas delivery tube and observe. Which is the combustible gas coming out of the gas delivery tube?

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