Which of the following will give maximum number of isomers?
- $[Co (NH_3)_4Cl_2]$
- $[Ni(en)(NH_3)_4]^{2+}$
- $[Ni(C_2O_4 )(en)_2]^{2-}$
- $[Cr(SCN)_2(NH_3)_4]^+$
The Correct Option is D
Solution and Explanation
Top NEET Chemistry Questions
Identify the correct orders against the property mentioned:
A. H$_2$O $>$ NH$_3$ $>$ CHCl$_3$ - dipole moment
B. XeF$_4$ $>$ XeO$_3$ $>$ XeF$_2$ - number of lone pairs on central atom
C. O–H $>$ C–H $>$ N–O - bond length
D. N$_2$>O$_2$>H$_2$ - bond enthalpy
Choose the correct answer from the options given below:- NEET (UG) - 2025
- Chemistry
- Chemical bonding and molecular structure
- Given below are two statements:
Statement I: A hypothetical diatomic molecule with bond order zero is quite stable.
Statement II: As bond order increases, the bond length increases.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Chemistry
- Chemical bonding and molecular structure
Identify the suitable reagent for the following conversion: $Ph-C(=O)-OCH_3$ $\longrightarrow$ $Ph-CHO$
- NEET (UG) - 2025
- Chemistry
- Organic Chemistry
- How many products (including stereoisomers) are expected from monochlorination of the following compound?
$CH_3-CH-CH_2-CH_3$- NEET (UG) - 2025
- Chemistry
- Organic Chemistry
- The correct order of decreasing acidity of the following aliphatic acids is:
- NEET (UG) - 2025
- Chemistry
- Organic Chemistry
Top NEET coordination compounds Questions
- Identify the incorrect statement.
- NEET (UG) - 2024
- Chemistry
- coordination compounds
- Which complex compound is most stable?
- NEET (UG) - 2023
- Chemistry
- coordination compounds
- which of the following statements are incorrect?
A. All the transition metals except scandium form MO oxides which are iconic
B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in Sc2O3 to Mn2O7
C. Basic character increases from V2O3 to V2O4 to V2O5
D. V2O4 dissolves in acids to give VO salts
E. CrO is basic but Cr2O3 is amphoteric
Choose the correct answer from the options given below:- NEET (UG) - 2023
- Chemistry
- coordination compounds
- Homoleptic complex from the following complexes is:
- NEET (UG) - 2023
- Chemistry
- coordination compounds
The order of energy absorbed which is responsible for the color of complexes
- Ni(H2O)2(en)2]2+
- [Ni(H2O)4(en)]2+
- [Ni(en)3]2+
- NEET (UG) - 2022
- Chemistry
- coordination compounds
Top NEET Questions
- Name the class of enzyme that usually catalyzes the following reaction: \[ S - G + S^{\prime} \rightarrow S + S^{\prime} - G \] Where \( G \) represents a group other than hydrogen, \( S \) is a substrate, and \( S^{\prime} \) is another substrate.
- Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repair mechanisms. In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Structure of DNA and RNA
- Given below are two statements:
Statement I: A hypothetical diatomic molecule with bond order zero is quite stable.
Statement II: As bond order increases, the bond length increases.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Chemical bonding and molecular structure
Identify the correct orders against the property mentioned:
A. H$_2$O $>$ NH$_3$ $>$ CHCl$_3$ - dipole moment
B. XeF$_4$ $>$ XeO$_3$ $>$ XeF$_2$ - number of lone pairs on central atom
C. O–H $>$ C–H $>$ N–O - bond length
D. N$_2$>O$_2$>H$_2$ - bond enthalpy
Choose the correct answer from the options given below:- NEET (UG) - 2025
- Chemical bonding and molecular structure
- The major product of the following reaction is:
$Ph-C(=O)-CH_2CH_2-CN$
(i) $CH_{3}MgBr (excess) (ii) H_{+}H_{2}O$- NEET (UG) - 2025
- Organic Chemistry
Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.