Cracking Hydrocarbons

Question 1

Larger, Less Useful Hydrocarbon Molecules can be Broken Down into Smaller, More Useful Ones in a Process Called what?

Answer 1

Cracking.

Question 2

In the Cracker, a Heavy Fraction Distilled From Crude Oil is Heated to Vaporise the Hydrocarbons. Vapour is then:

Answer 2

• Passed Over a Hot Catalyst.
  OR.
• Mixed with Steam and Heated to a Very High Temperature.

Question 3

Hydrocarbons are Cracked as ____________ Decomposition Reactions Takes Place.

Answer 3

Thermal.

Question 4

Tests on Gaseous Products From Experiments Show that Alkanes:

Answer 4

• Burn in Air.

- React with Bromine Water.

Question 5

A Positive Test for an _______________ Hydrocarbon is that it Turns Orange Bromine Water ______________.

Answer 5

Unsaturated…Colourless…