1.

    Which alkaline earth metal is used in flares and fireworks?

    A

    Magnesium

    B

    Calcium

    C

    Strontium

    D

    Barium

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :alkaline earth metals, uses of magnesium

    Related Questions

    1.

    Which one of the following correctly represent the increasing order of thermal stability of carbonates

    A

    BeCO3<MgCO3<CaCO3<SrCO3<BaCO3BeC{O_3} < MgC{O_3} < CaC{O_3} < SrC{O_3} < BaC{O_3}

    B

    BeCO3<MgCO3<CaCO3≈SrCO3<BaCO3BeC{O_3} < MgC{O_3} < CaC{O_3} \approx SrC{O_3} < BaC{O_3}

    C

    BeCO3<MgCO3>CaCO3>SrCO3>BaCO3BeC{O_3} < MgC{O_3} > CaC{O_3} > SrC{O_3} > BaC{O_3}

    D

    BeCO3>MgCO3>CaCO3>SrCO3>BaCO3BeC{O_3} > MgC{O_3} > CaC{O_3} > SrC{O_3} > BaC{O_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :thermal stability, carbonates, ionic size, polarizing power

    2.

    Incorrect option among the following is

    A

    Metal – Li, Characteristic colour to an oxidizing flame-Crimson red

    B

    Metal – Na, Characteristic colour to an oxidizing flame-Yellow

    C

    Metal – K, Characteristic colour to an oxidizing flame-Violet

    D

    Metal – Cs, Characteristic colour to an oxidizing flame-Green

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Flame test, Alkali metals, Characteristic colors

    3.

    Nitrogen dioxide cannot be prepared by heating

    A

    KNO3{\rm{KN}}{{\rm{O}}_3}

    B

    Pb(NO3)2{\rm{Pb}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}

    C

    Cu(NO3)2{\rm{Cu}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}

    D

    AgNO3{\rm{AgN}}{{\rm{O}}_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Thermal decomposition, Metal nitrates, Nitrogen dioxide

    4.

    Which of the following properties does NOT contribute to beryllium's preference for covalent bonding?

    A

    Small atomic radius

    B

    High ionization energy

    C

    High charge density

    D

    Low electronegativity

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    PYQ YEAR: 2016
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Beryllium, Covalent Bonding, Ionization Energy, Electronegativity

    5.

    The correct order of density of following elements is :- (Be, Mg, Ca, Sr)

    A

    Be < Mg < Ca < Sr

    B

    Be > Mg > Ca > Sr

    C

    Be < Mg > Ca < Sr

    D

    Sr < Ca < Mg < Be

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Density, Periodic Trends, Atomic Size, Atomic Mass

    6.

    Which of these alkaline earth metals is radioactive?

    A

    Magnesium

    B

    Calcium

    C

    Strontium

    D

    Radium

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Alkaline Earth Metals, Radioactivity

    7.

    Enzymes that utilize ATP in phosphate transfer require which alkaline earth metal (M) as a cofactor?

    A

    Ca

    B

    Sr

    C

    Ba

    D

    Mg

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    PYQ YEAR: 2019
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Enzyme Cofactors, ATP, Alkaline Earth Metals

    8.

    Lithopone is

    A

    BaO+ZnSO4{\rm{BaO}} + {\rm{ZnS}}{{\rm{O}}_4}

    B

    BaS+ZnSO4{\rm{BaS}} + {\rm{ZnS}}{{\rm{O}}_4}

    C

    ZnS+BaSO4{\rm{ZnS}} + {\rm{BaS}}{{\rm{O}}_4}

    D

    ZnO+BaSO4{\rm{ZnO}} + {\rm{BaS}}{{\rm{O}}_4}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical compounds, Inorganic Chemistry, Nomenclature

    9.

    At high temperature nitrogen combines with CaC2{\rm{Ca}}{{\rm{C}}_2} to give:

    A

    Calcium cyanide

    B

    Calcium cyanamide

    C

    Calcium carbonate

    D

    Calcium nitride

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical Reactions, Inorganic Chemistry

    10.

    Which of the following hydride conducts electricity in molten state

    A

    SiH4Si{H_4}

    B

    B2H6{B_2}{H_6}

    C

    CH4C{H_4}

    D

    KH

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:The S-Block Elements
    🎯Topic:Alkaline Earth Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Hydrides, Electrical Conductivity, Ionic Compounds

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