WAEC - Chemistry (2020 - No. 1)
Which of the following substances is an example of a fine chemical?
Sodium hydroxide
Hydrochloric acid
Ethylene
Ammonia
설명
Fine chemicals are complex, single, pure chemical substances, produced in limited quantities while Heavy chemicals are produced and handled in large lots and are often in a crude state. Some examples of heavy chemicals are ammonia, sulfuric acid, and sodium hydroxide.
Unfortunately, all the substances provided in the options are heavy chemicals.