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Is Mn2+ colorless?
Explanation: The complexes with d5 configuration of Mn are centrosymmetric (having center of symmetry) and therefore d-d transition in these complexes is not allowed. The colour of the complex which is due to d-d transition is thus not present in Mn. Hence, they are almost colourless.
Explanation: The complexes with d5 configuration of Mn are centrosymmetric (having center of symmetry) and therefore d-d transition in these complexes is not allowed. The colour of the complex which is due to d-d transition is thus not present in Mn. Hence, they are almost colourless.
See lessIs cr2o3 amphoteric?
Is chromic oxide acidic or basic? Chromic oxide (or chromium(III) oxide) is an amphoteric compound. It has the ability to dissolve in acids, liberating hydrated chromium ions in the process. These hydrated Cr ions can react with bases to form complex salts.
Is chromic oxide acidic or basic? Chromic oxide (or chromium(III) oxide) is an amphoteric compound. It has the ability to dissolve in acids, liberating hydrated chromium ions in the process. These hydrated Cr ions can react with bases to form complex salts.
See lessIs SnO2 amphoteric?
The correct option is: a SnO2 Explanation:SnO2 reacts with acid as well as base. So SnO2 is an amphoteric. CaO is basic in nature while SiO2 and CO2 are acidic in nature.
The correct option is: a SnO2 Explanation:SnO2 reacts with acid as well as base. So SnO2 is an amphoteric. CaO is basic in nature while SiO2 and CO2 are acidic in nature.
See lessIs Fe3+ purple?
The model of an iron ion (Fe3+-violet in the middle), surrounded by 3 glycine molecules, which makes stable complex. Red colour = oxygen, blue = nitrogen, grey = carbon, white = hydrogen..
The model of an iron ion (Fe3+-violet in the middle), surrounded by 3 glycine molecules, which makes stable complex. Red colour = oxygen, blue = nitrogen, grey = carbon, white = hydrogen..
See lessIs CrO amphoteric?
I faced a question where I had to find the amphoteric oxides among some given oxides. The answer key says Cr2O3 is amphoteric but CrO isn't.
I faced a question where I had to find the amphoteric oxides among some given oxides. The answer key says Cr2O3 is amphoteric but CrO isn’t.
See lessWhat color is cro4?
Physical Properties of Chromate – CrO 42- Odour Odourless Appearance Yellow powder Valency 2 Solubility Generally insoluble in water.
Physical Properties of Chromate – CrO 42-
See lessOdour Odourless
Appearance Yellow powder
Valency 2
Solubility Generally insoluble in water.
What is the difference between CrO3 and Cr2O3?
CrO has an oxidation number +2, and is a basic oxide, while CrO3 is acidic with a +6 oxidation number. Cr2O3 is amphoteric. Even if it is insoluble in water, it dissolves in acid to give hydrated chromium ions [Cr(H2O)6]3+. It reacts with alkali to yield chromite ions.
CrO has an oxidation number +2, and is a basic oxide, while CrO3 is acidic with a +6 oxidation number. Cr2O3 is amphoteric. Even if it is insoluble in water, it dissolves in acid to give hydrated chromium ions [Cr(H2O)6]3+. It reacts with alkali to yield chromite ions.
See lessIs k2cr2o7 a chromic acid?
Potassium dichromate (K2Cr2O7) It is not as soluble in water as chromic acid, its solubility being 9 per cent. It is a strong oxidising agent, though not so effective as chromic acid and evidently should not be mixed with formalin or alcohols.
Potassium dichromate (K2Cr2O7)
It is not as soluble in water as chromic acid, its solubility being 9 per cent. It is a strong oxidising agent, though not so effective as chromic acid and evidently should not be mixed with formalin or alcohols.
See lessWhat is the MLT for pressure difference?
Therefore, the dimensional formula of pressure difference is M 1 L - 1 T - 2 .
Therefore, the dimensional formula of pressure difference is M 1 L – 1 T – 2 .
See lessWhich Indian cities are at risk?
Chennai. It's a major city in Tamil Nadu that is also under the looming threat of submersion. As per NASA's predictions, Chennai may find itself submerged under 1.87 ft of water by 2100. As a hub of art and culture, the city's landscape might undergo significant transformations.
Chennai. It’s a major city in Tamil Nadu that is also under the looming threat of submersion. As per NASA’s predictions, Chennai may find itself submerged under 1.87 ft of water by 2100. As a hub of art and culture, the city’s landscape might undergo significant transformations.
See less