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Online Mock Tests
Chapters
2: Structure of Atom
3: Classification of Elements and Periodicity in Properties
4: Chemical Bonding and Molecular Structure
5: States of Matter
6: Thermodynamics
7: Equilibrium
8: Redox Reactions
9: Hydrogen
10: The s-Block Elements
▶ 11: The p-Block Elements
12: Organic Chemistry - Some Basic Principles and Techniques
13: Hydrocarbons
14: Environmental Chemistry
![NCERT solutions for Chemistry - Part 1 and 2 [English] Class 11 chapter 11 - The p-Block Elements - Shaalaa.com](/images/9788174504944-chemistry-part-1-and-2-english-class-11_6:35966ca919014e8d958c20a41989d406.jpg "NCERT solutions for Chemistry - Part 1 and 2 [English] Class 11 chapter 11 - The p-Block Elements")
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Solutions for Chapter 11: The p-Block Elements
Below listed, you can find solutions for Chapter 11 of CBSE, Karnataka Board PUC NCERT for Chemistry - Part 1 and 2 [English] Class 11.
NCERT solutions for Chemistry - Part 1 and 2 [English] Class 11 11 The p-Block Elements EXERCISES [Pages 331 - 333]
Discuss the pattern of variation in the oxidation states of B to Tl.
Discuss the pattern of variation in the oxidation states of C to Pb.
How can you explain higher stability of BCl3 as compared to TlCl3?
Why does boron trifluoride behave as a Lewis acid?
Consider the compound, BCl3. How will BCl3 behave with water? Justify.
Consider the compound, CCl4. How will CCl4 behave with water? Justify.
Is boric acid a protic acid? Explain.
Explain what happens when boric acid is heated.
Describe the shapes of BF3 and BH4–. Assign the hybridisation of boron in these species.
Write reactions to justify amphoteric nature of aluminium.
What are electron deficient compounds? Are BCl3 and SiCl4 electron deficient species? Explain
Write the resonance structure of `"CO"_3^(2-)`.
Write the resonance structure of `"HCO"_3^(-)`.
What is the state of hybridisation of carbon in `"CO"_3^(2-)`.
What is the state of hybridisation of carbon in Diamond ?
What is the state of hybridisation of carbon in graphite?
Explain the difference in properties of diamond and graphite on the basis of their structures.
Rationalise the given statement and give a chemical reaction:
Lead (II) chloride reacts with Cl2 to give PbCl4.
Rationalise the given statement and give a chemical reaction:
Lead (IV) chloride is highly unstable towards heat.
Rationalise the given statement and give a chemical reaction:
Lead is known not to form an iodide, PbI4.
Suggest reasons why the B–F bond lengths in BF3 (130 pm) and `"BF"_4^(-)` (143 pm) differ.
If B–Cl bond has a dipole moment, explain why BCl3 molecule has zero dipole moment.
Aluminium trifluoride is insoluble in anhydrous HF but dissolves on the addition of NaF. Aluminium trifluoride precipitates out of the resulting solution when gaseous BF3 is bubbled through. Give reasons.
Suggest a reason as to why CO is poisonous.
How is an excessive content of CO2 responsible for global warming?
Explain the Structure of Diborane.
Explain the Structure of Boric Acid.
What happens when Borax is heated strongly.
What happens when Boric acid is added to water?
What happens when Aluminium is treated with dilute NaOH?
What happens when BF3 is reacted with ammonia?
Explain the following reaction.
Silicon is heated with methyl chloride at high temperature in the presence of copper.
Explain the following reaction.
Silicon dioxide is treated with hydrogen fluoride.
Explain the following reaction.
CO is heated with ZnO.
Explain the following reaction.
Hydrated alumina is treated with aqueous NaOH solution.
Give reason for Conc. HNO3 can be transported in aluminium container.
Give reasons: A mixture of dilute NaOH and aluminium pieces is used to open drain.
Give reasons: Graphite is used as a lubricant.
Give reasons: Diamond is used as an abrasive.
Give reasons: Aluminium alloys are used to make aircraft body.
Give reasons: Aluminium utensils should not be kept in water overnight.
Give reasons: Aluminium wire is used to make transmission cables.
Explain why is there a phenomenal decrease in ionisation enthalpy from carbon to silicon?
How would you explain the lower atomic radius of Ga as compared to Al?
What are allotropes?
Sketch the structure of two allotropes of carbon namely diamond and graphite. What is the impact of structure on physical properties of two allotropes?
Classify the following oxide as neutral, acidic, basic or amphoteric:
CO
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
B2O3
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
SiO2
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
CO2
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
Al2O3
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
PbO2
neutral
acidic
basic
amphoteric
Classify the following oxide as neutral, acidic, basic or amphoteric:
Tl2O3
neutral
acidic
basic
amphoteric
Write suitable chemical equations to show the nature of the following oxide.
B2O3
Write suitable chemical equations to show the nature of the following oxide.
SiO2
Write suitable chemical equations to show the nature of the following oxide.
CO2
Write suitable chemical equations to show the nature of the following oxide.
Al2O3
Write suitable chemical equations to show the nature of the following oxide.
PbO2
Write suitable chemical equations to show the nature of the following oxide.
Tl2O3
In some of the reactions thallium resembles aluminium, whereas in others it resembles with group I metals. Support this statement by giving some evidences.
When metal X is treated with sodium hydroxide, a white precipitate (A) is obtained, which is soluble in excess of NaOH to give soluble complex (B). Compound (A) is soluble in dilute HCl to form compound (C). The compound (A) when heated strongly gives (D), which is used to extract the metal. Identify (X), (A), (B), (C) and (D). Write suitable equations to support their identities.
What do you understand by inert pair effect?
What are allotropes?
What do you understand by catenation?
A certain salt X, gives the following results.
- Its aqueous solution is alkaline to litmus.
- It swells up to a glassy material Y on strong heating.
- When conc. H2SO4 is added to a hot solution of X, white crystal of an acid Z separates out.
Write equations for all the above reactions and identify X, Y and Z.
Write a balanced equation for BF3 + LiH → ?
Write a balanced equation for B2H6 + H2O → ?
Write a balanced equation for NaH + B2H6 → ?
Write a balanced equation for \[\ce{H3BO3 ->[\Delta]}\]?
Write a balanced equation for Al + NaOH → ?
Write a balanced equation for B2H6 + NH3 → ?
Give one method for industrial preparation and one for laboratory preparation of CO.
Give one method for industrial preparation and one for laboratory preparation of CO2.
An aqueous solution of borax is _______.
neutral
amphoteric
basic
acidic
Boric acid is polymeric due to ______.
its acidic nature
the presence of hydrogen bonds
its monobasic nature
its geometry
The type of hybridisation of boron in diborane is ______.
sp
sp2
sp3
dsp2
Thermodynamically the most stable form of carbon is ______.
diamond
graphite
fullerenes
coal
Elements of group 14 ________.
exhibit oxidation state of +4 only
exhibit oxidation state of +2 and +4
form M2– and M4+ ions
form M2+ and M4+ ions
If the starting material for the manufacture of silicones is RSiCl3, write the structure of the product formed.
Solutions for 11: The p-Block Elements
NCERT solutions for Chemistry - Part 1 and 2 [English] Class 11 chapter 11 - The p-Block Elements
Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Chemistry - Part 1 and 2 [English] Class 11 CBSE, Karnataka Board PUC 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. NCERT solutions for Mathematics Chemistry - Part 1 and 2 [English] Class 11 CBSE, Karnataka Board PUC 11 (The p-Block Elements) 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.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Chemistry - Part 1 and 2 [English] Class 11 chapter 11 The p-Block Elements are Introduction to p-block Elements, Group 13 Elements - The Boron Family, Important Trends and Anomalous Properties of Boron, Some Important Compounds of Boron, Uses of Boron and Aluminium and Their Compounds, Group 14 Elements - The Carbon Family, Important Trends and Anomalous Behaviour of Carbon, Allotropes of Carbon - Diamond, Allotropes of Carbon - Graphite, Allotropes of Carbon - Fullerenes, Allotropes of Carbon - Uses of Carbon, Some Important Compounds of Carbon and Silicon - Carbon Monoxide, Some Important Compounds of Carbon and Silicon - Carbon Dioxide, Some Important Compounds of Carbon and Silicon - Silicon Dioxide, Some Important Compounds of Carbon and Silicon - Silicones, Some Important Compounds of Carbon and Silicon - Silicates, Some Important Compounds of Carbon and Silicon - Zeolites.
Using NCERT Chemistry - Part 1 and 2 [English] Class 11 solutions The p-Block Elements 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 NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE, Karnataka Board PUC Chemistry - Part 1 and 2 [English] Class 11 students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 11, The p-Block Elements Chemistry - Part 1 and 2 [English] Class 11 additional questions for Mathematics Chemistry - Part 1 and 2 [English] Class 11 CBSE, Karnataka Board PUC, and you can use Shaalaa.com to keep it handy for your exam preparation.
