d2sp3 hybridisation of the atomic orbitals gives
square planar structure
triangular structure
tetrahedral structure
octahedral structure
A group of atoms can function as a ligand only when
It is a small molecule
It has an unshared electron pair
Its a negatively charged ion
It is a positively charge ion
The process is spontaneous at the given temperature, if
ΔH is +ve and ΔS is -ve
ΔH is -ve and ΔS is +ve
ΔH is +ve and ΔS is +ve
ΔH is +ve and ΔS is equal to zero.
B.
ΔH is -ve and ΔS is +ve
According to Gibbs' energy equation
ΔG = ΔH- TΔS
When ΔH is negative but TΔS is positive, i.e,energy factor as well as the randomness factor favour the process.The process will be highly spontaneous and ΔG will be highly negative.
Mesomeric effect involves
delocalisation of π- electron
delocalisation of σ- electron
partial displacement of electrons
delocalisation of π and σ- electron
Alkali metals have negative reduction potential and hence they behave as
oxidising agents
Lewis bases
reducing agents
electrolytes
Cycloalkane formed when 1,4-dibromopentaneis heated with sodium is
methyl cyclobutane
cyclopentane
cyclobutane
methyl cyclopentane