Same chapter3 marksDifficulty: Medium
How is ethene prepared from ethanol in the laboratory? Write the equation and state the conditions.
Organic Chemistry
3 marksDifficulty: Medium
Write the structural formula and IUPAC name of the alkyne with three carbon atoms, and state one of its reactions with hydrogen.
Original Khojo Papers practice question — not from a past board paper.
Answer
CH≡C–CH3, propyne. With hydrogen over a nickel catalyst it adds two molecules of hydrogen and is reduced first to propene and then to propane.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Addition reactions are characteristic of unsaturated hydrocarbons.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
How would you distinguish between ethane and ethene using bromine water?
Organic Chemistry
Same chapter3 marksDifficulty: Medium
What is isomerism? Draw and name the two isomers of butane, C4H10.
Organic Chemistry
Same chapter3 marksDifficulty: Medium
Write the general formulae of alkanes, alkenes and alkynes, and name the simplest member of each.
Organic Chemistry
Same chapter3 marksDifficulty: Medium
Write the IUPAC names of CH3–CH2–CH2–OH and CH3–CHO.
Organic Chemistry
Same chapter3 marksDifficulty: Medium
Why does carbon form a very large number of compounds?
Organic Chemistry