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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
For the dumb-bell shaped orbital, the value of l is: (1) 3 (2) 1 (3) 0 (4) 2 Ans: 1
Gattermann-koch aldehyde synthesis Benzene is transformed into benzaldehyde by passing a mixture of carbon monoxide and HCl gas within high pressure into the ether solution of
On analysis, a certain compound was found to contain iodine and oxygen 254 gm in the ratio of of iodine and 80 gm of oxygen. The atomic mass of iodine is 127 and that of oxygen
Define Degrees of freedom - phase rule and phase diagrams? Consider a system in an equilibrium state. In this state, the system has one or more phases; each phase contains one
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
Q. Application of electrometallurgy? In theory, aluminium metal would be made the same way. But, aluminium trichloride is covalent and it does not conductor of electricity. As
Equivalent weight of Ca in Ca3(PO4)2 is
Convert cyclohexene to hexene diamide
cis-2-butene is a symmetrical alkene Because cis-2-butene is a symmetrical alkene, it reacts to give the similar product in either oxymercuration- reduction or hydroboration-ox
Attacking Reagents - Organic chemistry The fission of the substrate molecule to make centres of high or low electron density is affected by attacking reagents. Most of the atta
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