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:
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:
B and D only
C and D only
B and C only
A and E only
The Correct Option is B
Solution and Explanation
C. Basic character increases from V2O3 to V2O4 to V2O5 - incorrect.
D. V2O4 dissolves in acids to give VO salts E. CrO is basic but Cr2O3 is amphoteric - incorrect
The correct option is (B): C and D only
Top Questions on coordination compounds
- The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet color in non-luminous flame under hot condition in borax bead test is:
- JEE Main - 2025
- Chemistry
- coordination compounds
The structure of the major product formed in the following reaction is:
- JEE Main - 2025
- Chemistry
- coordination compounds
The steam volatile compounds among the following are:
- JEE Main - 2025
- Chemistry
- coordination compounds
The structure of the major product formed in the following reaction is:
- JEE Main - 2025
- Chemistry
- coordination compounds
- (b) Write two consequences of lanthanide contraction.
- CBSE CLASS XII - 2025
- Chemistry
- coordination compounds
Questions Asked in NEET exam
- Given below are two statements :
Statement I : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement II : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of above statements, choose the most appropriate answer from the options given below :- NEET (UG) - 2024
- Organ And Organ System
- The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called;
- NEET (UG) - 2024
- Biodiversity
- Given below are two statements:
Statement I: In C3 plants, some O2 binds to RuBisCO, hence CO, fixation is decreased.
Statement II: In C4 plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:- NEET (UG) - 2024
- respiration in plants
- Given below are two statements :
Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II : The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the option given below :- NEET (UG) - 2024
- Nephrons
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vectorof magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take SI units)
Reason R : , where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
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.