NEET 2023 Manipur | Redox Reactions Question 1 | Chemistry

NEET 2023 Manipur

MCQ (Single Correct Answer)

-1

The correct option for a redox couple is:

Both are oxidised forms involving same element.

Both are reduced forms involving same element.

Both the reduced and oxidised forms involve same element.

Cathode and anode together.

NEET 2023

MCQ (Single Correct Answer)

-1

On balancing the given redox reaction,

$$\mathrm{aCr}_{2} \mathrm{O}_{7}^{2-}+\mathrm{bSO}_{3}^{2-}(\mathrm{aq})+\mathrm{cH}^{+}(\mathrm{aq}) \rightarrow 2 \mathrm{aCr}^{3+}(\mathrm{aq})+\mathrm{bSO}_{4}^{2-}(\mathrm{aq})+\frac{\mathrm{c}}{2} \mathrm{H}_{2} \mathrm{O}(\ell)$$

the coefficients $$\mathrm{a}, \mathrm{b}$$ and $$\mathrm{c}$$ are found to be, respectively -

3, 8, 1

1, 8, 3

8, 1, 3

1, 3, 8

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Which of the following reactions is a decomposition redox reaction?

P₄(s) + 3OH^$$-$$(aq) + 3H₂O(l) $$\to$$ PH₃(g) + 3H₂PO$$_2^ - $$(aq)

2Pb(NO₃)₂(s) $$\to$$ 2PbO(s) + 4NO₂(g) + O₂(g)

N₂(g) + O₂(g) $$\to$$ 2NO(g)

Cl₂(g) + 2OH^$$-$$(aq) $$\to$$ ClO^$$-$$(aq) + Cl^$$-$$(aq) + 4H₂O(l)

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

What is the change in oxidation number of carbon in the following reaction?
CH₄(g) + 4Cl₂(g) $$ \to $$ CCl₄(l) + 4HCl(g)

0 to + 4

$$ - $$4 to + 4

0 to $$ - $$ 4

+ 4 to + 4

NEET Subjects

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Equilibrium Chemical Kinetics Solutions Thermodynamics Electrochemistry Nuclear Chemistry Solid State Surface Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Processes of Isolation of Elements s-Block Elements Hydrogen p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

Organic Chemistry

Some Basic Concepts of Organic Chemistry Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Organic Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life

Biology

Botany

Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution