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The number of unpaired electrons in Fe3+ (Z= 26) are:
(1) 5
(2) 6
(3) 3
(4) 4
Ans: 5
a sample of CaCo3 and MgCo3 weighing 192g is ignited to constanr weight of 104 gm . what is the composition of mixture ?
Each element has a unique number of protons. This unique number is known as the element's atomic number . All atoms of a given element have the same atomic number. For example:
explain why boiling and meliting points of nitroalkanes than that of iosmeric alkyl nitrites
Fe+ AgNO3-->Fe(NO3)2 + Ag
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beer Lambert law principal
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Q. Write electron configuration for a neutral atom of silicon? Writing Electron Configurations by means of Noble-Gas Notation Use noble-gas notation to write the electron confi
Objectives: After doing this exercise you will be able to: 1 . Fill-up a F-22 form or write an application for obtaining the license permit for alcohol, 2 . Give justifica
what are the uses of sublimation under reduced pressure in chemistry
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