Tuesday, October 12, 2021

Carbon and its Compounds | Class 10 | Activity 4.6 with Solution

Carbon and its Compounds | Activities in Text Book with Solution

Activity 4.6

Teacher’s demonstration –

Drop a small piece of sodium, about the size of a couple of grains of rice, into ethanol (absolute alcohol).

What do you observe?

✅ Answer
 
It produces sodium ethoxide (2CH3CH2ONa+) & H2.
2Na + 2CH3CH2OH → 2CH3CH2ONa+ + H2

How will you test the gas evolved?

✅ Answer

When a burning spitter is brought near to the gas, the gas burns with pop sound. A layer of moisture is formed inside the glass tube.

 

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