The fraction of compounds in a perfume that have the lowest ...

[haleyc112]

The fraction of compounds in a perfume that have the lowest volatility would be called the
 
  A) end note.
  B) medium note.
  C) high note.
  D) top note.

Question 2

In general, a higher proportion of branched chain hydrocarbons in a gasoline formulation
 
  A) increases octane rating.
  B) decreases octane rating.
  C) burns cleaner.
  D) burns cooler.

[BUTTHOL369]

Answer to Question 1

A

Answer to Question 2

A

[haleyc112]

TYSM

[helenmarkerine]

Thanks for the timely response, appreciate it