1.

    Which of the following statements regarding the solubility of alkali metal carbonates is INCORRECT?

    A

    The solubility of alkali metal carbonates generally increases down the group.

    B

    Lithium carbonate is less soluble than other alkali metal carbonates.

    C

    The solubility of alkali metal carbonates is influenced by the size of the cation.

    D

    The solubility of alkali metal carbonates decreases down the group.

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :1.5 mins
    🔄Ncert Concepts :Alkali metals, Solubility, Lattice enthalpy, Hydration enthalpy, Group trends

    Related Questions

    1.

    Most powerful reducing agent is

    A

    Li

    B

    Na

    C

    Ca

    D

    Mg

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :reducing agent, electrochemical series, ionization energy

    2.

    Which of the following compounds on reaction with NaOH{\rm{NaOH}} and H2O2{{\rm{H}}_2}{{\rm{O}}_2} gives yellow colour?

    A

    Ca(OH)2Ca{(OH)_2}

    B

    Cr(OH)3{\rm{Cr}}{\left( {{\rm{OH}}} \right)_3}

    C

    Al(OH)3{\rm{Al}}{\left( {{\rm{OH}}} \right)_3}

    D

    None of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Reactions of metal hydroxides, Oxidation-reduction reactions, Color of compounds

    3.

    A white solid reacts with dil. HCl{\rm{HCl}} to give colourless gas that decolourises aqueous bromine. The solid is most likely to be:

    A

    Sodium carbonate

    B

    Sodium chloride

    C

    Sodium acetate

    D

    Sodium thiosulphate

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Reactions of acids with salts, Redox reactions, Properties of gases

    4.

    Most abundant salt of sodium in nature is:

    A

    NaNO3{\rm{NaN}}{{\rm{O}}_3}

    B

    Na2SO4{\rm{N}}{{\rm{a}}_2}{\rm{S}}{{\rm{O}}_4}

    C

    NaOH{\rm{NaOH}}

    D

    NaCl{\rm{NaCl}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :common salts, sodium compounds, chemical knowledge

    5.

    Which of the following hydrogen compounds is most ionic?

    A

    HF{\rm{HF}}

    B

    CsH{\rm{CsH}}

    C

    HI{\rm{HI}}

    D

    LiH{\rm{LiH}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :electronegativity, ionic character, periodic trends

    6.

    Apart from its role in nerve signal transmission with sodium, which metal ion is known to act as a cofactor for numerous enzymes involved in various metabolic processes, including glucose oxidation?

    A

    Potassium

    B

    Calcium

    C

    Magnesium

    D

    Iron

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    PYQ YEAR: 2020
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Enzyme Cofactors, Metabolic Processes, Glucose Oxidation

    7.

    Which alkali metal is used in atomic clocks?

    A

    Lithium (Li)

    B

    Sodium (Na)

    C

    Potassium (K)

    D

    Cesium (Cs)

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Alkali metals, Cesium, Atomic clocks

    8.

    Which alkali metal nitrate upon strong heating produces the metal nitrite and oxygen?

    A

    LiNO3

    B

    NaNO3

    C

    KNO3

    D

    RbNO3

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Alkali metals, Nitrates, Thermal decomposition

    9.

    Which is known as crystal carbonate?

    A

    Calcite

    B

    Aragonite

    C

    Dolomite

    D

    Magnesite

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :chemical nomenclature, hydrates

    10.

    Na2CO3+Fe2O3oA+CO2;Ais:{\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3} + {\rm{F}}{{\rm{e}}_2}{{\rm{O}}_3} o A + {\rm{C}}{{\rm{O}}_2};A{\rm{is}}:

    A

    NaFeO2{\rm{NaFe}}{{\rm{O}}_2}

    B

    Na3FeO3{\rm{N}}{{\rm{a}}_3}{\rm{Fe}}{{\rm{O}}_3}

    C

    Fe3O4{\rm{F}}{{\rm{e}}_3}{{\rm{O}}_4}

    D

    Na2FeO2{\rm{N}}{{\rm{a}}_2}{\rm{Fe}}{{\rm{O}}_2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkali Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :chemical reactions, balancing equations, product prediction

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