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Nitration or Direct method
The number of - NO2 groups introduced in benzene nucleus relies upon the nature and concentration of the nitrating agent, temperature of nitration and nature of the compound to be nitrated.
describe valence bond theory and its limitations
Determine the molality of an aqueous solution that is 12.0 percent urea by mass
Maximum number of electrons present in N shell is: (1) 18 (2) 32 (3) 2 (4) 8 Ans: 32
what is importance of photochemical quantum yield
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
Quantum numbers of an atom can be defined on the basis of: (1) Hund's rule (2) Aufbau's principle (3) Pauli's exclusion principle (4) Heisenberg's uncertainty principl
ionic bond
How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
question..in which the molality is used? units of molality
WHAT ARE THE ELEMENTS OF DETERMINED QUALITATIVE ANALYSIS
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