Chemistry in Everyday Life — Chemistry STD 12 — Question

……… is defined as the resistance of an electrolyte confined between two electrodes having unit cross sectional area and separated by a unit distance

Phenol reacts with bromine water to give a precipitate of ………….

Elements belonging group 16 are called ………….

Nitration of Urotropine under controlled condition gives an explosive ………….

Plants synthesis and to protect them from being eaten away by insect ………….. and ………….. other animals.

All metal ions (or) atoms are ………….

Rubber forns colloidal solution with …………..

Formaldehyde reacts with ammonia to form …………. which is used to treat urinary infection.

Many bacteria need …………….. in order to produce an important coenzyme, folic acid