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This of the following substances has giant covalent structure:
(1) Iodine crystal
(2) Solid co2
(3) Silica
(4) White phosphorus
Ans: Silica co2
Trace and ultratrace analysis: The accuracy, precision and detection limits of flame AAS depend on how the analyte sample is introduced into the atomiser. We need to transfer
Q. Reactions with metals? Ans. Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example,
entropy change in mixing ideal gas
For n= 3 energy level, the number of possible orbitals (all kinds) are: (1) 1 (2) 3 (3) 4 (4) 9 Ans: 9
Rutherford's alpha particle scattering experiment eventually led to the conclusion that: (1)The point of impact with matter can be precisely determined (2)Electrons occupy s
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He- is p block element
explanation..
classification of organic chemistry
What is calgon n phosphate conditioning n which one is better?
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