In redox reaction electrons are transferred
Redox reaction involve both reducing of b agent and oxidizing agent. reducing agent acts as electrons donor while oxidizing agent acts as electron acceptor
for example formation of Hydrogen fluoride (HF)
that is H2 + F2 = HF
by breaking the equation
H2 = 2 H^+ 2e-
F2 + 2e= 2f-
hydrogen move from oxidation from zero( 0 )to positive one ( +1 )therefore hydrogen is oxidized. Fluorine move from oxidation state of zero(0) to oxidation state of negative one(-1) therefore fluorine is reduced.