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In which of the following pairs, the two species are iso-structural?
The angular shape of ozone molecule ($O_3$) consists of:
Which of the following complex ions is expected to absorb visible light? (At. no. $\text{Zn} = 30$, $\text{Sc} = 21$, $\text{Ti} = 22$, $\text{Cr} = 24$)
The incorrect statement among the following regarding the molecules of $\text{CH}_4$, $\text{NH}_3$, and $\text{H}_2\text{O}$ is:
The species, having bond angles of 120° is :
Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?
According to IUPAC nomenclature, sodium nitroprusside is named as:
The complex that does not exhibit optical isomerism is: (en = ethylenediamine)
Which of the following will give a pair of enantiomorphs? (en = $\text{NH}_2\text{CH}_2\text{CH}_2\text{NH}_2$)
Which one of the following statements is incorrect related to Molecular Orbital Theory?
The most stable compound, among the following, is:
Match the complex ions in List-I with their corresponding hybridization in List-II. **List-I (Complex ion)** (A) $[Ni(CN)_4]^{2-}$ (B) $[CoF_6]^{3-}$ (C) $[Co(C_2O_4)_3]^{3-}$ (D) $[NiCl_4]^{2-}$ **List-II (Hybridisation)** (I) $sp^3$ (II) $d^2sp^3$ (III) $sp^3d^2$ (IV) $dsp^2$ Choose the correct answer from the options given below:
$[\text{Co}(\text{NH}_3)_4(\text{NO}_2)_2]\text{Cl}$ can show:
In which of the following molecules, all atoms are coplanar?
The correct order of ionic character among CaH$$_2$$, BeH$$_2$$ and BaH$$_2$$ is:
Identify the complex among the following that is not expected to exhibit isomerism:
The crystal field stabilization energy (CFSE) for $[CoCl_6]^{4-}$ is $18000 \text{ cm}^{-1}$. The CFSE for $[CoCl_4]^{2-}$ will be:
Among the options given below, identify the isoelectronic species:
In $[Cr(NH_3)_6](Br)_3$, number of unpaired electrons in Cr is:
BF_{3} is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :