Bright Tutorials Bright Tutorials
ICSE Class 10 Chemistry Question 23 of 23

Model Paper 3 — Question 23

Back to all questions
23
Question

Question 8(iv)

A double bond hydrocarbon X with 2 carbon atoms is bubbled through bromine dissolved in carbon tetrachloride.

(a) Draw the structure of the compound formed.

(b) What is your observation?

(c) Name the compound formed when steam reacts with X.

Answer

(a)

The formation of 1, 2-dibromoethane from ethene and bromine is an example of. Model Paper 3, Concise Chemistry Solutions ICSE Class 10.

(b) Bromine solution in CCl4 has a reddish brown colour. When added dropwise to ethene, the reddish brown colour of bromine disappears due to the formation of the colourless dibromoethane.

(c) When ethene (X) reacts with steam, a water molecule is added in the presence of acids like sulphuric acid to form alcohols.

C2H4ethene+H2O→Conc. H2SO4C2H5OH ethyl alcohol\underset{ \text{ethene}}{\text{C}_2\text{H}_4} + \text{H}_2\text{O} \xrightarrow {\text{Conc. H}_2\text{SO}_4} \underset{\text{ ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} \\