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Which of the following explains the sequence of filling the electrons in different shells:
(1) Hund's rule
(2) Octet rule
(3) Aufbau principle
(4) All of these
Ans: Aufbau principle
Question 1: a. Describe in details the composting process. b. Odour is very often a big problem in composting facilities. Describe some odour avoidance and odour treatment
can all the total heat content available betotally converted to work done?
475 ml at 54 psi to 1760 torr
Which of the following electronic configuration is not possible: (1) 1s 2 2s 2 (2) 1s 2 2s 2 2p6 (3) [Ar]3d 10 4s 2 4
Q. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
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WHAT IS ENVIRONMENTAL CHEMISTRY?
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as Chromium, Manganese etc. Explain why? Ans) The free energy change for the formation o
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