COMEDK 2024 Afternoon Shift | Redox Reactions Question 14 | Chemistry

An inorganic salt comprises of atoms of elements $$\mathrm{A}, \mathrm{B}$$ and $$\mathrm{C}$$. If the oxidation numbers of A, B and $$\mathrm{C}$$ are $$+3,+6$$ and $$-$$2 respectively, what is the possible formula of the compound?

$$ \mathrm{A}_3\left(\mathrm{BC}_3\right)_4 $$

$$ \mathrm{A}_2\left(\mathrm{BC}_4\right)_3 $$

$$ \mathrm{A}_3(\mathrm{BC})_2 $$

$$ \mathrm{A}_3 \mathrm{B}_6 \mathrm{C}_2 $$

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

-0

Choose the group of ions / molecules in which none of the species undergo Disproportionation reaction.

$$\mathrm{F}_2, \mathrm{ClO}^{-}, \mathrm{Cl}_2, \mathrm{ClO}_2^{-}$$

$$\mathrm{P}_4, \mathrm{H}_2 \mathrm{O}_2, \mathrm{BrO}_2^{-}, \mathrm{NO}_2$$

$$\mathrm{Cr}_2 \mathrm{O}_7^{2-}, \mathrm{F}_2, \mathrm{MnO}_4^{-}, \mathrm{ClO}_4{ }^{-}$$

$$\mathrm{ClO}_3^{-}, \mathrm{S}_8, \mathrm{ClO}^{-}, \mathrm{ClO}_4^{-}$$

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

-0

In dilute alkaline solution $$\mathrm{MnO}_4^{-}$$ changes to

$$\mathrm{MnO}_2$$

$$\mathrm{MnO}_4^{2-}$$

$$\mathrm{MnO}$$

$$\mathrm{Mn}_2 \mathrm{O}_3$$

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Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

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Metallurgy Periodic Table and Periodicity Hydrogen and It's Compounds p-Block Elements Environmental Chemistry Coordination Compounds d and f Block Elements s-Block Elements Chemical Bonding and Molecular Structure

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IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry