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The electronic structure of four elements A, B, C, D are:
(1) 1s2
(2) 1s2, 2s2, 2p2,
(3) 1s2, 2s2, 2p5,
(4) 1s2, 2s2, 2p6
Ans: 1s2, 2s2, 2p5,
The total number of valence electrons in 4.2 gm N - 3 of ion is ( N A is the Avogadro's number): (1) 1.6N A (2) 3.2N A
which postulate of daltons theory can explain the law of definite proportions
Q. Describe the Freezing - Techniques of preservation? This is a method of preservation using low temperature. The chief preservative effect of freezing lies in the inability o
Ciprofloxacin is used to fight bacterial infections.
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entropy change in mixing ideal gas
.
Amongst the following covalent bonding is found in: (1) Sodium chloride (2) Magnesium chloride (3) Water (4) Brass Ans: Water
Chemical Kinetics of the Peroxodisulfate Ion The peroxodisulfate ion is one of the strongest oxidants that are called, although the oxidation reaction is relatively slo
Is liquid ammonia is solvent?
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