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what do you mean by the terms chromogen,auxochrome,bathochrome and hyposochrome?what role do they play in relation to colour and constitution?
hitorff method
why we take carbon 12 as standard?
Q. What is alpha radiation? Types of radiation there are three principal types of radiation are given off during radioactive decay. One kind is alpha radiation (α-radiation)
Delocalisation of electrons in conjugated system is called resonance. For example there is delocalisation of electrons in benzene ,hence we write kekule structure for benzen.
out of Kr and Rb+ ,which has greater size and why?
freon preparation
What are the chemical laws and their verification
Hello. PVC processors use a very high molecular weight acrylic processing aid for production of Rigid PVC foamsheet of high thickness. I would like to know the type of Acrylic mate
Two element have electronegativity of 1.2 and 3.0. Bond formed between them would be: (1) Ionic (2) Polar covalent ( 3) Co-ordinate (4) Metallic A ns: Ionic
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