Question

CLASS 10
CHEMICAL REACTIONS AND EQUATIONS

NO SPAMMING
CONTENT QUALITY

Answer 1

1. In oxidation reaction , the oxidation no. of an atom or molecule is increased or oxygen is added to a substance.
reduction is opposite of this

Answer 2

hey!
1.oxidation ;it is the loss of electron during the reaction or when oxygen get added.
example of oxidation;
2Na + cl2 -----> 2nacl.
here na is oxidised with cl.
where as reduction is the process of gaining one more electron. or removal of oxygen..
example;
2na +cl2 ----> 2nacl.....

2.rancidity;it happens in food. it is causes by the unwanted oxidation of food.that results unpleasant smell as well as taste.
you can control rancidity of food by keeping it in freeze.....

__________hope it helps....