The above reaction scheme presents one possible synthesis of diphenhydramine. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound a. Consider E/Z stereochemistry of alkenes. Do not show stereochemistry in other cases. Do not include lone pairs in your answer. They will not be considered in the grading. Draw organometallic compounds as covalent molecules. Do not draw organic or inorganic by-products.

the product of the pressure and volume is also constant

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.