Predict the correct statement and correct the wrong one.
In a chemical reaction, oxidation is always accompanied by reduction.

Predict the correct statement and correct the wrong one. In a redox reaction the oxiding agent gains electrons.

Predict the correct statement and correct the wrong one. The oxidation number of Fe in Fe(CO)_5 is +3

Predict the correct statement and correct the wrong one (i) In an exothermic reaction the equilibrium shifts towards right with increase in teperature .

The statement that is not correct for the periodic classification of elements is-