CHEMISTRY 1.1 basic task

which of the following explain following an oxidation process ?

• loss of oxygen

• gain of Hydrogen

• loss of Hydrogen

• decrease of oxidation number

what happen to a substance when undergoes a reduction

• loses oxygen

• gains electron

• loses protons

• gains proton

which of the following cannot occur during oxidation

• gain of oxygen

• donation of electron

• loss of Hydrogen

• decrease in oxidation number

which is correct ? ans more than 1

• oxidation - gain oxygen

• oxidation -gain hydrogen

• oxidation - loss electron

• oxidation - increase oxidation number

which is correct ? ans more than 1

• reduction - gain electron

• reduction - loss electron

• reduction - increase oxidation number

• reduction - loss oxygen

which of the following cannot occur during oxidation

• gain of oxygen

• donation of electron

• loss of Hydrogen

• decrease in oxidation number

reduction is a (a)   agent?

oxidation is a (a)   agent