1.

    A weak base, BOH, has a KbK_b of 1.0imes10−51.0 imes 10^{-5}. A 0.1 M solution of BOH is titrated with 0.1 M HCl. At the equivalence point, the pH of the resulting solution will be closest to:

    A

    5

    B

    7

    C

    9

    D

    3

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Acid-Base Theories, Titration, Hydrolysis, Equilibrium

    Related Questions

    1.

    Sulphuric acid is a dibasic acid. Hence, it forms:

    A

    Acidic salt

    B

    Basic and acidic salt

    C

    Acidic and normal salt

    D

    Double salt

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Acids, Salts, Basicity, Neutralization

    2.

    In HS−,I−,R−NH2,NH3{\rm{H}}{{\rm{S}}^ - },{{\rm{I}}^ - },{\rm{R}} - {\rm{N}}{{\rm{H}}_2},{\rm{N}}{{\rm{H}}_3} order of proton accepting tendency will be:

    A

    I−>NH3>RNH2>HS−{{\rm{I}}^ - } > N{{\rm{H}}_3} > R{\rm{N}}{{\rm{H}}_2} > {\rm{H}}{{\rm{S}}^ - }

    B

    NH3>RNH2>HS−>I−{\rm{N}}{{\rm{H}}_3} > R{\rm{N}}{{\rm{H}}_2} > H{{\rm{S}}^ - } > {{\rm{I}}^ - }

    C

    RNH2>NH3>HS−>I−R{\rm{N}}{{\rm{H}}_2} > N{{\rm{H}}_3} > H{{\rm{S}}^ - } > {{\rm{I}}^ - }

    D

    HS−>RNH2>NH3>I−{\rm{H}}{{\rm{S}}^ - } > R{\rm{N}}{{\rm{H}}_2} > N{{\rm{H}}_3} > {{\rm{I}}^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, Proton Acceptor, Inductive Effect, Electronegativity, Acid Strength

    3.

    The strongest base among the following is:

    A

    CH3−{\rm{CH}}_3^ -

    B

    F−{{\rm{F}}^ - }

    C

    NH2−{\rm{NH}}_2^ -

    D

    OH−{\rm{O}}{{\rm{H}}^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, Conjugate Base, Electronegativity, Periodic Trends

    4.

    Which one is the strongest base?

    A

    OH−{\rm{O}}{{\rm{H}}^ - }

    B

    RO−R{O^ - }

    C

    NH2−{\rm{NH}}_2^ -

    D

    R−{R^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :basicity, conjugate base, electronegativity, stability of anions

    5.

    The weakest base among the following is:

    A

    H−{{\rm{H}}^ - }

    B

    CH3−{\rm{CH}}_3^ -

    C

    CH3O−{\rm{C}}{{\rm{H}}_3}{{\rm{O}}^ - }

    D

    Cl−{\rm{C}}{{\rm{l}}^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, Conjugate base, Electronegativity, Stability of anions

    6.

    The strongest Lewis base in the following is

    A

    CH3−{\rm{CH}}_3^ -

    B

    F−{{\rm{F}}^ - }

    C

    NH2−{\rm{NH}}_2^ -

    D

    OH−{\rm{O}}{{\rm{H}}^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Lewis bases, basicity, electronegativity, conjugate acid stability

    7.

    A mixture of sodium oxide and calcium oxide are dissolved in water and saturated with excess carbon dioxide gas. The resulting solution is ….. .It contains

    A

    Basic; NaOH  and  Ca(OH)2{\rm{NaOH}}\;{\rm{ and}}\;{\rm{ Ca}}{\left( {{\rm{OH}}} \right)_2}

    B

    Neutral; Na2CO3  and  CaCO3{\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3}\;{\rm{and }}\;{\rm{CaC}}{{\rm{O}}_3}

    C

    Basic; Na2CO3  and  CaCO3{\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3}\;{\rm{and}}\;{\rm{ CaC}}{{\rm{O}}_3}

    D

    Acidic; NaOH  and  CaCO3{\rm{NaOH }}\;{\rm{and }}\;{\rm{CaC}}{{\rm{O}}_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Reaction of metal oxides with water, Reaction of metal hydroxides with carbon dioxide, Acidity and basicity of solutions, Solubility of carbonates

    8.

    The weakest base among the following is:

    A

    H−{{\rm{H}}^ - }

    B

    CH3−{\rm{CH}}_3^ -

    C

    CH3O−{\rm{C}}{{\rm{H}}_3}{{\rm{O}}^ - }

    D

    Cl−{\rm{C}}{{\rm{l}}^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :basicity, conjugate base, electronegativity, periodic trends

    9.

    The decreasing order of strength of the bases,

    OH−,NH2−,H−C≡C−  and  CH3−CH2−,  is{\rm{O}}{{\rm{H}}^ - },{\rm{NH}}_2^ - ,{\rm{H}}-{\rm{C}} \equiv {{\rm{C}}^ - }\;and\;{\rm{C}}{{\rm{H}}_3}-{\rm{CH}}_2^ - ,\;is

    A

    CH3−CH2−>NH2−>H−C≡C−>OH−{\rm{C}}{{\rm{H}}_3}-{\rm{CH}}_2^ - > N{\rm{H}}_2^ - > H-C \equiv {{\rm{C}}^ - } > O{{\rm{H}}^ - }

    B

    H−C≡C−>CH3−CH2−>NH2−>OH−{\rm{H}}-{\rm{C}} \equiv {{\rm{C}}^ - } > C{{\rm{H}}_3}-{\rm{CH}}_2^ - > N{\rm{H}}_2^ - > O{{\rm{H}}^ - }

    C

    OH−>NH2−>H−C≡C−>CH3−CH2−{\rm{O}}{{\rm{H}}^ - } > N{\rm{H}}_2^ - > H-C \equiv {{\rm{C}}^ - } > C{{\rm{H}}_3}-{\rm{CH}}_2^ -

    D

    NH2−>H−C≡C−>OH−>CH3−CH2−{\rm{NH}}_2^ - > H-C \equiv {{\rm{C}}^ - } > O{{\rm{H}}^ - } > C{{\rm{H}}_3}-{\rm{CH}}_2^ -

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Basicity, Conjugate base, Electronegativity, Hybridization

    10.

    Which one is the strongest base?

    A

    OH−{\rm{O}}{{\rm{H}}^ - }

    B

    RO−R{O^ - }

    C

    NH2−{\rm{NH}}_2^ -

    D

    R−{R^ - }

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Chemical Equilibrium
    🎯Topic:Acid-Base Theories
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, conjugate base, stability of anion, inductive effect

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