NEET Chemistry MCQ: NCERT Redox Reactions | NEET.Guide Questions

In the complex ion $[Co(NH_3)_4Cl_2]^+$ , the oxidation number of cobalt and the coordination number of the complex are respectively:

A

+2, 4

B

+3, 6

C

+4, 6

D

+2, 6

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :1.5 mins

🔄Ncert Concepts :Oxidation Number, Coordination Compounds

Related Questions

What is the change in oxidation number of carbon in the reaction: $\CH_4(g) + 4Cl_2(g) o CCl_4 + 4HCl(g)$ ?

A

+4

B

+8

C

-4

D

-8

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

PYQ YEAR: 2020

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :oxidation number, redox reactions

Which of the following elements never show positive oxidation number?

A

O

B

Fe

C

Ga

D

F

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :oxidation number, electronegativity, periodic trends

Oxidation number of carbon in graphite

A

zero

B

$+ 1$

C

$+ 4$

D

$+ 2$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :oxidation number, allotropes

Carbon is in the lowest oxidation state in

A

$C{H_4}$

B

$CC{l_4}$

C

$C{F_4}$

D

$C{O_2}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :oxidation state, electronegativity

The oxidation state of manganese in $MnO_4^-$ is +7. If $MnO_4^-$ is reduced to $MnO_2$ in a reaction, what is the magnitude of the change in the oxidation state of Mn?

A

7

B

4

C

3

D

1

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

PYQ YEAR: 2022

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Oxidation State

Find the oxidation state of Fe in brown ring complex $[Fe(H_2O)_5(NO)]SO_4$ :

A

+1

B

+2

C

+3

D

+4

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Oxidation Number, Coordination Compounds, Nitrosyl Complexes

When potassium permanganate ( $KMnO_4$ ) oxidizes potassium iodide ( $KI$ ) in a weakly alkaline solution, what is the final oxidation state of the manganese?

A

+4

B

+2

C

+6

D

+7

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

PYQ YEAR: 2022

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Redox Reactions, Oxidation State

Identify the correct statement regarding cell division.

A

Mitosis produces genetically different daughter cells.

B

Meiosis results in diploid daughter cells.

C

DNA replication occurs during mitosis.

D

During meiosis I, homologous chromosomes separate.

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

PYQ YEAR: 2020

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :cell division, meiosis, mitosis, chromosomes

In a reaction, the oxidation number of manganese changes from +7 to +4. Which of the following could be the manganese-containing product of this reaction?

A

$MnO_2$

B

$MnO_4^−$

C

$Mn^{2+}$

D

$MnO_4^{2−}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

PYQ YEAR: 2022

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Redox Reactions, Oxidation State

Oxidation numbers of two cl atoms in bleaching powder $\left( {CaOC{l_2}} \right)$ are,

A

$- 1,{\rm{ }} - 1$

B

$+ 1,{\rm{ }} - 1$

C

$+ 1,{\rm{ }} + 1$

D

$0,{\rm{ }} - 1$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Redox Reactions

🎯Topic:Oxidation Number

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :oxidation number, chemical formula, ionic compounds

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