$5.$ Find out if the statement is true or false: Thermal cracking of petroleum utilizes a catalyst to break down heavier crude oil molecules into lighter molecules, which is essential for increasing the overall yield of gasoline from crude oil.

A$.$ True

Answer: B$.$ False

C$.$ Not enough information

D$.$ None of the above

$6.$ Find out if the statement is true or false: Catalytic cracking not only increases the yield of gasoline from crude oil but also improves the octane rating, making it a critical process in the production of high$-$performance fuels.

Answer: A$.$ True

B$.$ False

C$.$ Not enough information

D$.$ None of the above

$7.$ Find out if the statement is true or false: Hydrocracking is a less preferred method compared to catalytic cracking for producing gasoline because it produces a greater proportion of gaseous products that are less useful as fuel.

A$.$ True

Answer: B$.$ False

C$.$ Not enough information

D$.$ None of the above

$8.$ Find out if the statement is true or false: Thermal reforming of petroleum products involves the use of catalysts to improve the octane rating of fuels, whereas catalytic reforming does not use any external heat source.

A$.$ True

Answer: B$.$ False

C$.$ Not enough information

D$.$ None of the above