| Sumit dangi asks : what is 7 SI units in physics. |
| Kushashwa ravi shrimali asks : Prove that : tan225cot405 + tan765cot675 = 1 * here 225 , 405 , 765 and 675 are in degrees |
| Alia kapoor asks : What is meant by gram equivalent weight of the element ? Give example |
| Ranjita asks : or tautomerism to occur , atleast one alpha hydrogen must be acidic?? what alpha hydrogen & acidic hydrogen means here & how multiple bond on cyclocompounds reduce acidic character of hydrogen???plzzz..explain. |