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Refining of petroleum: Petroleum (crude) extracted from earth's crust is an intimate mixture of many organic compounds. Crude petroleum needs to be purified and its components
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
Highest covalent character is found in: (a1 CaF 2 (2) CaCl 2 (3) CaBr 2 (4)
What is the difference between reaction stoichiometry and composition stoiciometry?
Dessicants(drying agents) can often be regenerated by heating. A dessicant that is commonly regenerated is CaSO 4 .2H 2 O:
Properties of ethyl alcohol Physical properties It is a colorless liquid with a characteristic alcoholic smell. Its boiling point is 351K It is neutral towards litmus
it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
Anomalous behaviour of carbon and silicon
How are formalin and trioxane related to methanol?
Types of burner system in AAS
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