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Bohr's radius can have:
(1) Discrete values
(2) +ve values
(3) - ve values
(4) Fractional values
Ans: +ve values
The number of 2p electrons having spin quantum numbers= -1/2 are: (1) 6 (2) 0 (3) 2 (4) 3 Ans: 3
For a reversible process involving ideal gases in a closed system, show that ΔS = C v ln(T2/T1) for a constant volume process ΔS = Cp ln(T2/T1) for a constant pressure proc
The order of a reaction is occasionally changed by conditions. Consider a chemical reaction between two substances where one reactant is there in large excess. During the hydrolysi
What does concentration exactly mean?
what element is not grouped with others in a family? what is its usual atomic structure?
why are lanthanides and actinides called innertransition metals
What are the lattice vacancies The lattice vacancies are a stable feature of metals at all temperatures above absolute zero. By successive jumps of atoms, just like playing Chi
CH 3 -CHBR-CH 2 -CHCL-CH 3 1 2 3 4 5 Br abd Cl are side chain. numbering is done so that the alphabet that comes first in order get lowest number i.e.,
Generally ionic bonds are stronger than covalent bonds. This is because in ionic bonds, electrostatic forces of attractin are involved. The positive ion (cation) and the negative
what is the molar mass of C3H4
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