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An example of a sigma bonded organometallic compound is:
Type of isomerism exhibited by compounds $[Cr(H_2O)_6]Cl_3$, $[Cr(H_2O)_5Cl]Cl_2 \cdot H_2O$, $[Cr(H_2O)_4Cl_2]Cl \cdot 2H_2O$ and the value of coordination number (CN) of central metal ion in all these compounds, respectively, is:
Select the correct option based on the statements below: **Assertion (A):** The metal-carbon bond in metal carbonyls possesses both $\sigma$ and $\pi$ character. **Reason (R):** The ligand to metal bond is a $\pi$ bond and metal to ligand bond is a $\sigma$ bond.
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
A species that does not exhibit paramagnetism is:
The correct shape and hybridisation of BrF$_5$ is:
Which of the following has the longest C—O bond length? (Free C—O bond length in CO is 1.128 Å)
Homoleptic complex from the following complexes is:
Which of the following has the longest C-O bond length? (Free C-O bond length in CO is 1.128 Å.)
The correct order of C-O bond length among CO, $CO_3^{2-}$, and $CO_2$ is:
A low spin complex of $d^6$-cation in an octahedral field will have the following energy: ($\Delta_0$ = Crystal field splitting energy in an octahedral field, $P$ = Electron pairing energy)
BF_{3} is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :
The sum of coordination number and oxidation number of the metal M in the complex $[M(en)_2(C_2O_4)]Cl$ (where, en is ethylenediamine) is:
A red precipitate is obtained when an ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the following statements is not true?
The correct order of spin-only magnetic moment for the given complexes is:
A diatomic molecule, among the following species, that only has $\pi$ bonds according to the Molecular Orbital Theory (MOT) is:
The compound that forms a linear polymer due to hydrogen bonding is:
Which of the following is a polar molecule?
The bond order of 1.5 is shown by:
The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm⁻³, respectively. If the standard free energy difference (∆Gº) is equal to 1895 J mol⁻¹, the pressure at which graphite will be transformed into diamond at 298 K is: