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What are the advantaged and disadvantages of a double beam spectrophotometer
Concentration of electrons in the conduction band At equilibrium, there is no net current flowing across p-n junction. Concentration of electrons in the conduction band in cond
saltness analysis of inrganic premiliminary test
Q. Show Sulphide Minerals? In these minerals metals are present as their sulphides. For example, iron pyrites (FeS 2 ), calcocite (CU 2 S), chalcopyrite (CuFeS 2 ), zinc blende
After making an ester by heating a carboxylic acid with alcohol in the presence of concentrated sulfuric acid, water is added to the mixture and the ester seperates out as oily lay
Number of unpaired electrons in the ground state of beryllium atom is: (1) 2 (2) 1 (3) 0 (4) All the above Ans: 0
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
discovery of neutron becomes very late because
Just like lithium and beryllium in Groups Land 2, boron also shows anomalous behaviour. In general, the boron chemistry resembles that of silicon (occupying a diagonal position in
Sharp line source: When the bandwidth of the primary radiation is low with respect to the profile of the analyte absorption, the given amount of analyte would absorb more radi
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