Give NCERT top priority because practically all exam questions are derived from NCERT examples and text. Concentrate on heavier subjects like thermodynamics, organic chemistry, hydrocarbons, and ...

Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates "Avogadro's Number": 6.02 x 10 23. This number--called a mole--is a basic measuring unit in chemistry. Mole Day ...