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For third order reactions the half life is?
- Independent of the initial concentration of the reactants
- Inversely proportional to the initial concentration of the reactants
- Inversely proportional to the square of the initial concentration of the reactants
- Inversely proportional to the cube of the initial concentration of the reactant
Inversely proportional to the square of the initial concentration of the reactants
For third order reactions, the rate of the reaction is inversely proportional to the square of the initial concentration of the reactants.
[t1/2] = 1.5/ka2
Binding energies of the transition elements are?
- Very weak
- Depends on the series
Binding energies are high because apart from s-electrons of the outermost shell, the electrons of underlying half filled d-orbitals also participate in the binding energies. That is why transition elements are tough metals.
Which of the following is true about ionic compounds?
- Directional nature
- Non-Directional nature
- Soluble in benzene
- Slow reactions
Ionic compounds have electrostatic lines of forces between the oppositely charged ions which hold the atoms firm and thus these are non-directional in nature.
All other options are incorrect.