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The correct increasing order of trans-effect of the following species is:
An ion, among the following, that has a magnetic moment of 2.84 BM is: (At. no. Ni = 28, Ti = 22, Cr = 24, Co = 27)
Cobalt(III) chloride forms several octahedral complexes with ammonia. A compound among the following that does not give a test for chloride ions with silver nitrate at 25 °C is:
The complex ion that is not expected to absorb visible light is:
The correct state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon $$ \overset{1}{\text{HC}} \equiv \overset{2}{\text{C}} - \overset{3}{\text{CH}}_2 - \overset{4}{\text{CH}} = \overset{5}{\text{CH}} - \overset{6}{\text{CH}}_3 $$ is in the sequence:
Copper sulphate dissolves in excess of KCN to give:
A pair that contains both the ions coloured in an aqueous solution is: (At. no. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27)
The correct order of increasing field strength of ligands is:
Match List-I with List-II: **List-I (Complexes)** (A) $[Co(NH_3)_5NO_2]Cl_2$ and $[Co(NH_3)_5ONO]Cl_2$ (B) $[Cr(NH_3)_6][Co(CN)_6]$ and $[Cr(CN)_6][Co(NH_3)_6]$ (C) $[Co(NH_3)_5(SO_4)]Br$ and $[Co(NH_3)_5Br]SO_4$ (D) $[Cr(H_2O)_6]Cl_3$ and $[Cr(H_2O)_5Cl]Cl_2 \cdot H_2O$ **List-II (Type of isomer)** (I) Ionisation isomerism (II) Coordination isomerism (III) Linkage isomerism (IV) Solvate isomerism Choose the correct answer from the options given below:
Which of the following sets represents a complex and a double salt, respectively?
The correct order of the stoichiometries of $AgCl$ formed when $AgNO_3$ in excess is treated with the complexes: $CoCl_3 \cdot 6NH_3$, $CoCl_3 \cdot 5NH_3$, $CoCl_3 \cdot 4NH_3$, respectively, is:
Ethylene diaminetetraacetate (EDTA) ion is :
Among them, intensive property is:
The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic mass $16$ is:
Which of the following is not a correct statement?
Which one of the following species has a plane triangular shape?
An electron-deficient compound among the following is:
Identify the incorrect statement among the following:
An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radius is
Which of the following species contains three bond pairs and one lone pair around the central atom?