Which of the following oxides of chromiu...

Which of the following oxides of chromium is amphoteric in nature

`CrO`

`Cr_2O_3`

`CrO_3`

`CrO_5`

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Passage-III : The binary compounds of oxygen with other elements are called oxides. They are classified either depending upon their acid - base characteristics or on the basis of oxygen content. a ) Normal oxides : These oxides which contain oxygen atoms as permitted by the normal oxidation number, i.e., -2. Normal oxide may be acidic, basic, amphoteric or neutral. b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2. i) Peroxides : Two oxygen atoms are linked to each other and oxygen has -I oxidation number. They contain (O-O)^(2) unit. ii) Superoxides : These oxides contain (O-O)^(-1) units, i.e., each O-atom has oxidation number -1//2 . c ) Suboxides : These contain low content of oxygen than expected. d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following oxides is paramagnetic in nature?

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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-2 (PRMANGANATE AND DICHROMATE)

Acedified K2Cr2O7 cannot oxidise
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Number of electrons transferred in each case when KMnO(4) acts as an o...
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KMnO(4) is powerful oxidant where it converts into
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Four moles of KMnO(4) reacts with excess of hypo solution to produce -...
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An acidified solution of KMnO(4) oxidises
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Incorrect statement regarding the structure of dichromate is
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Reaction of KMnO4 in neutral or very weakly acidic solution can be rep...
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K2Cr2O7 cannot be used for
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A solution of potassium chromate is treated with an excess of dilute n...
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The natures of the oxides CrO and CrO3, respectively
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When acidified solution of potassium dichromate is shaken with aqueous...
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In the dichromate dianion
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The equilibrium Cr2O7^(2-) hArr 2CrO4^(2-)
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Which of the following oxides of chromium is amphoteric in nature
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Potassium permanganate acts as an oxidant in neutral, alkaline as well...
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When KMnO4 is added to oxalic acid, the decolourisation is slow in the...
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Acidified KMnO4 oxidizes nitrites to
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Permanganate ion oxidize S2O3^(2-) in fairly alkaline solutions to giv...
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When MnO(2) is fused with KOH in the presence of air, a coloured compo...
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