To all the men Who work till day’s end They get up early Leave the home, never been lazy To keep the family cozy No holiday No excuse The burden of responsibilities Makes the shoulder more strong Legs are ment to move, hold and strengthen Feet are the roots That nourish the family May be the stomach Not demanding much […]
Perkin reaction This reaction is used in the synthesis of β-aryl-acrylic acid. This reaction is mostly used for the prepration of cinnamic acid. Coumerin, a flavouring agent is also prepared by this method.
Quarks Quarks are thought to be elementary point particles like leptons with no internal structure but unlike other particles have fractional charges. Each quark has got either positive or negative charge equal to fraction Of an electrical charge and is assigned a specific quantum number. Original three quarks were labelled as up(u) ,down (d), and stange(s), along with their antiparticles, […]
Here are the standard electrode potentials of elements .