Answer : The lewis dot structure includes the lone pair of electrons in any element and is helpful for defining the bond formation using the electrons.
In the molecule of HOI hydrogen is to the left of oxygen; oxygen is in middle and Iodine is at right of oxygen.
The picture is attached for better understanding.
The amplitude of a wave is most directly related to crest length.
Amplitude means the height of a crest or a trough.
is a reducing agent,
is an oxidizing agent.
An oxidizing agent is a substance that causes oxidation by accepting electrons.
Al is a reducing agent, is an oxidizing agent.
Hence, option C is correct.
Learn more about the oxidizing agent here:
#SPJ1