NEET Chemistry MCQ: NCERT Periodicity & Properties | NEET.Guide Questions

Positive electron gain enthalpy is highest for

A

Xe

B

Kr

C

Ne

D

Ar

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :electron gain enthalpy, noble gases, periodic trends

Related Questions

The correct order of increasing electropositive character among ${\rm{Cu}},{\rm{Fe and Mg}}$ is:

A

${\rm{Cu}} \approx {\rm{Fe}} < Mg$

B

${\rm{Fe}} < Cu < Mg$

C

${\rm{Fe}} < Mg < Cu$

D

${\rm{Cu}} < Fe < Mg$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Electronegativity, Periodic Trends, Metallic Character

Which element has the lowest electronegativity?

A

Li

B

F

C

Cl

D

Fe

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :electronegativity, periodic trends

Which is the property of non-metal?

A

Electronegative

B

Basic nature of oxide

C

Reducing property

D

Low ionisation potential

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Electronegativity, Properties of non-metals, Ionization potential, Oxide nature, Reducing property

Which of the following property displays progressive increase with the rise in atomic number across a period in the periodic table

A

electronegativity

B

electron affinity

C

ionisation potential

D

size of atom

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :electronegativity, periodic trends, atomic number

Among, ${\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3},{\rm{Si}}{{\rm{O}}_2},{{\rm{P}}_2}{{\rm{O}}_3}{\rm{and\;S}}{{\rm{O}}_2}$ the correct order of acid strength is

A

${\rm{S}}{{\rm{O}}_2} < {{\rm{P}}_2}{{\rm{O}}_3} < {\rm{Si}}{{\rm{O}}_2} < A{{\rm{l}}_2}{{\rm{O}}_3}$

B

${\rm{Si}}{{\rm{O}}_2} < {\rm{S}}{{\rm{O}}_2} < A{{\rm{l}}_2}{{\rm{O}}_3} < {{\rm{P}}_2}{{\rm{O}}_3}$

C

${\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3} < {\rm{Si}}{{\rm{O}}_2} < {\rm{S}}{{\rm{O}}_2} < {{\rm{P}}_2}{{\rm{O}}_3}$

D

${\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3} < {\rm{Si}}{{\rm{O}}_2} < {{\rm{P}}_2}{{\rm{O}}_3} < {\rm{S}}{{\rm{O}}_2}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Analyzing

🎯Difficulty :Easy

⚡ Time Required :3 mins

🔄Ncert Concepts :Acidic character of oxides, Electronegativity, Periodic trends

The values of electronegativity of atom A and B are 1.20 and 4.0 respectively. The percentage of ionic character of A-B bond is

A

48%

B

72%

C

16%

D

92%

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :electronegativity, ionic character, Pauling equation

Pauling’s equation for determining the electronegativity of an element, is ${X_A},\;{X_B} =$ electronegativity values of elements and $\Delta =$ represents polarity of A-B bond

A

${X_A} - {X_B} = 0.208\sqrt \Delta$

B

${X_A} + {X_B} = 0.208\sqrt \Delta$

C

${X_A} - {X_B} = 0.208{\Delta ^2}$

D

${X_A} - {X_B} = \sqrt \Delta$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :electronegativity, Pauling's equation, bond polarity

Which of the following element shows maximum valency?

A

Carbon

B

Barium

C

Nitrogen

D

Sulphur

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Valency, Electronic Configuration

Which of the following oxides is most basic?

A

${\rm{N}}{{\rm{a}}_2}{\rm{O}}$

B

${\rm{Si}}{{\rm{O}}_2}$

C

${\rm{S}}{{\rm{O}}_2}$

D

All are equally basic

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :basic oxides, periodic trends, electronegativity

Which element has highest electronegativity?

A

F

B

He

C

Ne

D

Na

Question Tags

📚 Subject:Chemistry

📑 Chapter:Classification of Elements and Periodicity in Properties

🎯Topic:Electro Negativity, Electro Positivity, Valency

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :electronegativity, periodic trends

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