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Fe(atomic number = 26) atom has the electronic arrangement:
(1) 2, 8, 8, 8
(2) 2, 8, 16
(3) 2, 8,14, 2
(4) 2, 8, 12, 4
Ans: 2, 8,14, 2
first two groups are metal but why hydrogen is placed in first group
Q. Write short note on "Electrically conducting polymers". Ans. electrically conducting polymers: Many synthetic organic polymers have been found to possess high electrical c
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what is the Difference between Mesomerism and Resonance
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
give me assigment of spontaneous and non spontaneous reactions
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Strategy 2 The wheat flour amount is fixed at 3940g, but that of the active ingredients is varied from 30 to 60 g with the ratio of A : B : C fixed at 3:2:1. The combinations
What is the meaning of Casting - fabrication processes Fe-C alloys with more than 2% carbon are known as cast irons. On crossing liquidus, proeutectic crystallizes first. O
Which carbonate mineral reacts readily with cool dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas? Many carbonate minerals.
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