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Which of the following sequence is correct as per Aufbau principle:
(1) 3s < 3d < 4s < 4p
(2) 1s < 2p < 4s < 3d
(3) 2s < 5s < 4p < 5d
(4) 2s < 2p < 3d < 3p
Ans: 1s < 2p < 4s < 3d
Discuss the ion exchange process of water softening. Give an account of the variety of mechanisms of Lubrication. Write notes on bulk and solution polymerization techniques.
What is the chemical formula for hard water?
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x(2x^-1/4)^4
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uses of salt
A compound exists in 2 forms. One them produces 2moles of AgBr while the other produces 1mole of AgBr with AgNO3
Which of the following reduces the activation energy of a chemical reaction?
Why the lest packing fraction havig higj of the binding energy
The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10 -13 A 1/3 cm Radius of atom is one A. If the mass number
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