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p-Block Elements

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Group 13 Elements (Boron Family)

Subtopic

Group 13 Elements (Boron Family) under p-Block Elements for Grade 11 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the correct chemical formula for Borax, a compound used extensively in the glass and ceramic industries?

    A.

    Na2B4O7⋅5H2ONa_2B_4O_7 \cdot 5H_2O

    B.

    Na2B4O7⋅10H2ONa_2B_4O_7 \cdot 10H_2O

    C.

    NaBO2NaBO_2

    D.

    H3BO3H_3BO_3

  2. 2.

    The nature of the oxide of Aluminium (Al2O3Al_2O_3) is best described as:

    A.

    Purely Acidic

    B.

    Purely Basic

    C.

    Amphoteric

    D.

    Neutral

  3. 3.

    Which of the following elements in Group 13 has the lowest melting point, so low that it can exist as a liquid during a hot summer day?

    A.

    Boron

    B.

    Gallium

    C.

    Aluminium

    D.

    Thallium

Download the worksheet for p-Block Elements - Group 13 Elements (Boron Family) to practice offline. It includes additional chapter-level practice questions.

Group 14 Elements (Carbon Family)

Subtopic

Group 14 Elements (Carbon Family) under p-Block Elements for Grade 11 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is an example of a 3D network silicate?

    A.

    Orthosilicate

    B.

    Pyrosilicate

    C.

    Quartz

    D.

    Asbestos

  2. 2.

    What is the geometry of the CO2CO_2 molecule?

    A.

    Bent

    B.

    Linear

    C.

    V-shaped

    D.

    Trigonal pyramidal

  3. 3.

    Which of the following elements can form a stable +4+4 oxidation state hydride with the formula MH4MH_4?

    A.

    Only Carbon

    B.

    Only Carbon and Silicon

    C.

    Carbon, Silicon, and Germanium

    D.

    All Group 14 elements

Download the worksheet for p-Block Elements - Group 14 Elements (Carbon Family) to practice offline. It includes additional chapter-level practice questions.

Allotropes of Carbon

Subtopic

Allotropes of Carbon under p-Block Elements for Grade 11 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Fullerenes are also colloquially known as:

    A.

    Diamondoids

    B.

    Buckyballs

    C.

    Carbon layers

    D.

    Coal balls

  2. 2.

    Which carbon form is obtained by heating sugar in the absence of air or by the action of concentrated H2SO4H_2SO_4?

    A.

    Sugar Charcoal

    B.

    Lamp Black

    C.

    Gas Carbon

    D.

    Anthracite

  3. 3.

    Which of the following methods is used to produce C60C_{60} in the laboratory?

    A.

    Heating wood in absence of air

    B.

    Electric arc between graphite electrodes in inert gas

    C.

    Dehydration of sugar with sulfuric acid

    D.

    Incomplete combustion of methane

Download the worksheet for p-Block Elements - Allotropes of Carbon to practice offline. It includes additional chapter-level practice questions.

Important Compounds of Silicon

Subtopic

Important Compounds of Silicon under p-Block Elements for Grade 11 ICSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the result of the hydrolysis of Trimethylchlorosilane, (CH3)3SiCl(CH_{3})_{3}SiCl?

    A.

    A long-chain polymer

    B.

    A cross-linked resin

    C.

    (CH3)3SiOH(CH_{3})_{3}SiOH, which can dimerize

    D.

    Pure Silicon

  2. 2.

    In the silicate structure, each Silicon atom is surrounded by how many Oxygen atoms?

    A.

    2

    B.

    3

    C.

    4

    D.

    6

  3. 3.

    Which of the following chemicals is used to etch glass?

    A.

    HClHCl

    B.

    H2SO4H_{2}SO_{4}

    C.

    HNO3HNO_{3}

    D.

    HFHF

Download the worksheet for p-Block Elements - Important Compounds of Silicon to practice offline. It includes additional chapter-level practice questions.

p-Block Elements - Class 11 Chemistry (ICSE) | Krit.club