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DEGREE OF HARDNESS: The degree of hardness of water is conveniently expressed in terms of equivalent amount of CaCO 3 . Although hardness of water is never present in th
Classification of polymers - Synthetic polymers The polymers that are prepared in the laboratories are known as synthetic polymers. These are as well described as manmade polym
Q. Uses of Aluminium? Aluminium exhibits useful properties of low density, high thermal and electrical conductivity, and good corrosion resistance with non-toxic nature of the
describe vesper theory?
a) Give a chemical test to distinguish between aniline and N-methyl aniline. Draw the structure of XeF2 molecule. b. Write the outer electronic configuration of Cr atom (Z =
The electronic configuration of a metal M is 1s 2 , 2s 2 , 2p 6 , 3s 1 , The formula of its oxides will be: (1) MO (2) M
advantages and disadvantages of coulometer
which element is the largest size halogen.
Which one pair of atoms or ions will have same configuration: (1) F + ans Ne (2) Li + He - (3) C l - and Ar (4) Na and K Ans: Cl - an
How can we calculate the rate of effusion of nitrogen gas from a cylinder and How much time it will take?? Ans) rate of effusion=r=(volume of nitrogen gas effusing from the cyl
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