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Q. Show properties of the Borax? Salts of boric acids are known as borates. As said earlier, hydrated borates occur naturally, e.g., borax, Na 2 B 6 0 11 . 5H 2 0, kernite, Na
diagonal relationship between boron and silicon
The maximum number of electrons which each sub-shell can occupy is: (1) 2n 2 (2) 2n (3) 2 (2l+1) (4) (2l+1) Ans: 2
Definitions Oxidation exactly meant 'combination with oxygen' and reduction 'removal of oxygen'. These definitions have been illustrated. Oxidation implies combination with a
Illustrate resonance structures that define the electronic structure of benzene. Illustrate the structures of all conceivable disubstituted benzene isomers bearing two
Q. Hypothesis on chlorofluorocarbon? A hypothesis is a probable explanation for what has been observed. Based on the explanation of ozone thinning and CFC build-up in the chemi
If wavelength of photon is 2.2x10 -11 m, h= 6.6x 10 -34 J-sec, then momentum of photon is: (1) 3x 10 -23 kgms -1 (2) 3.33x 10 22 kgms -1 (3) 1.452x 10-
Q. Illustrate Aromatics compounds? Ans. Benzene (C 6 H 6 ) is the prototype of an important class of hydrocarbons called aromatic compounds. Benzene is a ring of 6 carbon
Acid-base titrations - Types of titrations While the strength of an acid is determined along with the help of a standard solution of base, it is termed as acidimetry. Similarly
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