Tamil Nadu Board of Secondary EducationHSC Science Class 12

Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Chemistry Volume 1 and 2 Answers Guide chapter 3 - p-Block Elements - II [Latest edition]

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Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Chemistry Volume 1 and 2 Answers Guide chapter 3 - p-Block Elements - II - Shaalaa.com
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Solutions for Chapter 3: p-Block Elements - II

Below listed, you can find solutions for Chapter 3 of Tamil Nadu Board of Secondary Education Tamil Nadu Board Samacheer Kalvi for Class 12th Chemistry Volume 1 and 2 Answers Guide.


Evaluation
Evaluation [Pages 96 - 99]

Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Chemistry Volume 1 and 2 Answers Guide Chapter 3 p-Block Elements - II Evaluation [Pages 96 - 99]

Choose the best answer:

Evaluation | Q 1. | Page 96

In which of the following, NH3 is not used?

  • Nessler’s reagent

  • Reagent for the analysis of IV group basic radical

  • Reagent for the analysis of III group basic radical

  • Tollen’s reagent

Evaluation | Q 2. | Page 96

Which is true regarding nitrogen?

  • least electronegative element

  • has low ionisation enthalpy than oxygen

  • d-orbitals available

  • ability to form pπ − pπ bonds with itself

Evaluation | Q 3. | Page 96

An element belongs to group 15 and 3rd period of the periodic table, its electronic configuration would be

  • 1s2 2s2 2p4

  • 1s2 2s2 2p3

  • 1s2 2s2 2p6 3s2 3p2

  • 1s2 2s2 2p6 3s2 3p3

Evaluation | Q 4. | Page 96

Solid (A) reacts with strong aqueous NaOH liberating a foul smelling gas (B) which spontaneously burn in air giving smoky rings. A and B are respectively

  • P4 (red) and PH3

  • P4 (white) and PH3

  • S8 and H2S

  • P4 (white) and H2S

Evaluation | Q 5. | Page 96

On hydrolysis, PCl3 gives ____________.

  • H3PO3

  • PH3

  • H3PO4

  • POCl3

Evaluation | Q 6. | Page 96

P4O6 reacts with cold water to give ____________.

  • H3PO3

  • H4P2O7

  • HPO3

  • H3PO4

Evaluation | Q 7. | Page 96

The basicity of pyrophosphorous acid (H4P2O5) is ____________.

  • 4

  • 2

  • 3

  • 5

Evaluation | Q 8. | Page 97

The molarity of given orthophosphoric acid solution is 2M. its normality is ____________.

  • 6N

  • 4N

  • 2N

  • none of these

Evaluation | Q 9. | Page 97

Assertion: bond dissociation energy of fluorine is greater than chlorine gas

Reason: chlorine has more electronic repulsion than fluorine

  • Both assertion and reason are true and reason is the correct explanation of assertion.

  • Both assertion and reason are true but reason is not the correct explanation of assertion.

  • Assertion is true but reason is false.

  • Both assertion and reason are false.

Evaluation | Q 10. | Page 97

Among the following, which is the strongest oxidizing agent?

  • Cl2

  • F2

  • Br2

  • l2

Evaluation | Q 11. | Page 97

The correct order of the thermal stability of hydrogen halide is ____________.

  • HI > HBr > HCl > HF

  • HF > HCl > HBr > HI

  • HCl > HF > HBr > HI

  • HI > HCl > HF > HBr

Evaluation | Q 12. | Page 97

Which one of the following compounds is not formed?

  • XeOF4

  • XeO3

  • XeF2

  • NeF2

Evaluation | Q 13. | Page 97

Most easily liquefiable gas is ____________.

  • Ar

  • Ne

  • He

  • Kr

Evaluation | Q 14. | Page 97

XeF6 on complete hydrolysis produces ____________.

  • XeOF4

  • XeO2F2

  • XeO3

  • XeO2

Evaluation | Q 15. | Page 97

Which of the following is the strongest acid among all?

  • HI

  • HF

  • HBr

  • HCl

Evaluation | Q 16. | Page 98

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

  • Br2 > I2 > F2 > Cl2

  • F2 > Cl2 > Br2 > l2

  • I2 > Br2 > Cl2 > F2

  • Cl2 > Br2 > F2 > I2

Evaluation | Q 17. | Page 98

Among the following the correct order of acidity is

  • HClO2 < HClO < HClO3 < HClO4

  • HClO4 < HClO2 < HClO < HClO3

  • HClO3 < HClO4 < HClO2 < HClO

  • HClO < HClO2 < HClO3 < HClO4

Evaluation | Q 18. | Page 98

When copper is heated with conc HNO3 it produces ____________.

  • Cu(NO3)2, NO and NO2

  • Cu(NO3)2 and N2O

  • Cu(NO3)2 and NO2

  • Cu(NO3)2 and NO

Answer the following questions:

Evaluation | Q 1. | Page 98

What is the inert pair effect?

Evaluation | Q 2. | Page 98

Chalcogens belongs to p-block. Give reason.

Evaluation | Q 3. | Page 98

Explain why fluorine always exhibit an oxidation state of −1?

Evaluation | Q 4. a) | Page 98

Give the oxidation state of halogen in the following.

OF2

Evaluation | Q 4. b) | Page 98

Give the oxidation state of halogen in the following.

O2F2

Evaluation | Q 4. c) | Page 98

Give the oxidation state of halogen in the following.

Cl2O3

Evaluation | Q 4. d) | Page 98

Give the oxidation state of halogen in the following.

I2O4

Evaluation | Q 5. | Page 98

What are interhalogen compounds? Give examples.

Evaluation | Q 6. | Page 98

Why fluorine is more reactive than other halogens?

Evaluation | Q 7. | Page 98

Give the uses of helium.

Evaluation | Q 8. | Page 98

What is the hybridisation of iodine in IF7? Give its structure.

Evaluation | Q 9. | Page 98

Give the balanced equation for the reaction between chlorine with cold NaOH and hot NaOH.

Evaluation | Q 10. | Page 98

How will you prepare chlorine in the laboratory?

Evaluation | Q 11. | Page 98

Give the uses of sulphuric acid.

Evaluation | Q 12. | Page 98

Give a reason to support that sulphuric acid is a dehydrating agent.

Evaluation | Q 13. | Page 98

Write the reason for the anomalous behaviour of Nitrogen.

Evaluation | Q 14. a) | Page 98

Write the molecular formula and structural formula for the following molecule.

Nitric acid

Evaluation | Q 14. b) | Page 98

Write the molecular formula and structural formula for the following molecule.

Dinitrogen pentoxide

Evaluation | Q 14. c) | Page 98

Write the molecular formula and structural formula for the following molecule.

Phosphoric acid

Evaluation | Q 14. d) | Page 98

Write the molecular formula and structural formula for the following molecule.

Phosphine

Evaluation | Q 15. | Page 99

Give the uses of argon.

Evaluation | Q 16. | Page 99

Write the valence shell electronic configuration of group-15 elements.

Evaluation | Q 17. | Page 99

Give two equations to illustrate the chemical behaviour of phosphine.

Evaluation | Q 18. | Page 99

Give a reaction between nitric acid and a basic oxide.

Evaluation | Q 19. | Page 99

What happens when PCl5 is heated?

Evaluation | Q 20. | Page 99

Suggest a reason why HF is a weak acid, whereas binary acids of all other halogens are strong acids.

Evaluation | Q 21. | Page 99

Deduce the oxidation number of oxygen in hypofluorous acid – HOF.

Evaluation | Q 22. a) | Page 99

What type of hybridisation occur in BrF5

Evaluation | Q 22. b) | Page 99

What type of hybridisation occur in BrF3

Evaluation | Q 23. 1. | Page 99

Complete the following reaction.

\[\ce{NaCl + MnO2 + H2SO4 ->}\]

Evaluation | Q 23. 2. | Page 99

Complete the following reaction.

\[\ce{NaNO2 + HCl ->}\]

Evaluation | Q 23. 3. | Page 99

Complete the following reaction.

\[\ce{P4 + NaOH + H2O ->}\]

Evaluation | Q 23. 4. | Page 99

Complete the following reaction.

\[\ce{AgNO3 + PH3 ->}\]

Evaluation | Q 23. 5. | Page 99

Complete the following reaction.

\[\ce{Mg + HNO3 ->}\]

Evaluation | Q 23. 6. | Page 99

Complete the following reaction.

\[\ce{KClO3 ->[\Delta]}\]

Evaluation | Q 23. 7. | Page 99

Complete the following reaction.

\[\ce{Cu + \underset{\text{(Hot conc)}}{H2SO4} ->}\]

Evaluation | Q 23. 8. | Page 99

Complete the following reaction.

\[\ce{Sb + Cl2 ->}\]

Evaluation | Q 23. 9. | Page 99

Complete the following reaction.

\[\ce{HBr + H2SO4 ->}\]

Evaluation | Q 23. 10. | Page 99

Complete the following reaction.

\[\ce{XeF6 + H2O ->}\]

Evaluation | Q 23. 11. | Page 99

Complete the following reaction.

\[\ce{XeO^4-_6 + Mn^2+ + H^+ ->}\]

Evaluation | Q 23. 12. | Page 99

Complete the following reaction.

\[\ce{XeOF4 + SiO2 ->}\]

Evaluation | Q 23. 13. | Page 99

Complete the following reaction.

\[\ce{Xe + F2 ->[Ni/200 atm][400°C]}\]

Solutions for Chapter 3: p-Block Elements - II

Evaluation
Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Chemistry Volume 1 and 2 Answers Guide chapter 3 - p-Block Elements - II - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Chemistry Volume 1 and 2 Answers Guide chapter 3 - p-Block Elements - II

Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Class 12th Chemistry Volume 1 and 2 Answers Guide Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Tamil Nadu Board Samacheer Kalvi solutions for Mathematics Class 12th Chemistry Volume 1 and 2 Answers Guide Tamil Nadu Board of Secondary Education 3 (p-Block Elements - II) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

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Concepts covered in Class 12th Chemistry Volume 1 and 2 Answers Guide chapter 3 p-Block Elements - II are Group 15 (Nitrogen Group) Elements, Group 16 (Oxygen Group) Elements, Oxygen, Group 17 (Halogen Group) Elements, Group 18 (Inert Gases) Elements.

Using Tamil Nadu Board Samacheer Kalvi Class 12th Chemistry Volume 1 and 2 Answers Guide solutions p-Block Elements - II exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Class 12th Chemistry Volume 1 and 2 Answers Guide students prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exams.

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