Q19 of 58 Page 1

An organic compound 'X' on heating with cone. H2SO4 forms a compound 'Y' which on addition of one molecule of hydrogen in the presence of nickel forms a compound 'Z'. One molecule of compound 'Z' on combustion forms two molecules of C02 and three molecules of H20. Identify giving reasons the compounds 'X', 'Y' and 'Z'. Write the chemical equations for all the chemical reactions involved.

The organic compound ‘X’ is Ethanol whose formula is given by CH3 - CH2 -0H. As given in the question, when Ethanol is heated with conc. H2SO4, the product formed will be Ethane which is a ‘Y’ compound.


When one molecule of H2 is added to Ethene, in presence of Ni, the compound formed is Ethane.


The chemical reactions are as follows;


CH3CH2OH CH2 =CH2 + H2O


CH2 =CH2CH3 – CH3


CH3 – CH3 + 7/2 O2 2CO2 + 3H2O + Heat + light


More from this chapter

All 58 →
17

When and where do we see a rainbow? How is a rainbow formed? Draw a labelled diagram to illustrate the formation of a rainbow.

 18

State in brief the two ways in which non-biodegradable substances would affect the environment. List two methods of safe disposal of the non-biodegradable waste.

 20

Write the two causes of human population explosion. Explain with the help of suitable example show this explosion can be checked.

 21

What is pollination? How does it occur in plants? How does pollination lead to fertilization? Explain.