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(a) Using Lewis structures to describe your reasoning, describe why the following ions have different bond angles: ClO2 - and NO2 - (b) Given that the spatial arrangement of a
Which forms a crystal of Nacl: (1) Nacl molecules (2) Na + and cl - ions (3) Na andcl atoms (4) None of the above Ans: Na + and cl - ions
Postulates of molecular orbital theory?
#questionQ1. 0.28gm of CaCO3 was dissolved in HCl and the solution was made to one litre with distilled water. 100 ml of the above solution required 28 ml of EDTA solution on titra
separation of metal
what is the principle of solvent extraction?
Dichromate titrations - oxidation reduction titrations These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organi
Q. Illustrate important catalyst of aluminium? Anhydrous AlCl 3 is an important catalyst, used in organic synthesis and in the cracking of petroleum. Al 2 (S0 4 ) 3 as such o
Natural rubber - Types of Rubber It is acquired as latex from rubber trees. The latex is coagulated along with formic acid or acetic acid. The coagulated volume is after that s
The number of neutron in tritium is : (1) 1 (2) 2 (4) 3 (4) 0 Ans: 2
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