Acids and Bases
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NEET DIGITAL LIBRARY
CHXI07:EQUILIBRIUM

314430 Ammonium ion is

1 a conjugate acid
2 a conjugate base
3 Neither an acid nor a base
4 Both an acid and a base
CHXI07:EQUILIBRIUM

314431 The no. of conjugate acid-base pairs present in the aqueous solution of \(\mathrm{H}_{3} \mathrm{PO}_{3}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314432 Which of the following statement (s) is/are correct?
(I) Water has ability to act both as an acid and a base
(II) In pure water one \(\mathrm{H}_{2} \mathrm{O}\) molecule donate proton and acts an acid and another water molecule accepts a proton and acts as a base.

1 Both (I) and (II)
2 Neither (I) nor (II)
3 Only (I)
4 Only (II)
CHXI07:EQUILIBRIUM

314433 The ionisation of hydrochloric acid in water is given below
\({\text{HC}}{{\text{l}}_{{\text{(aq)}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}} \rightleftharpoons {{\text{H}}_{\text{3}}}{\text{O}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
Conjugate acid-base pairs in this ionisation are

1 \(\mathrm{HCl}-\mathrm{Cl}^{-}, \mathrm{H}_{2} \mathrm{O}-\mathrm{H}_{3} \mathrm{O}^{+}\)
2 \(\mathrm{HCl}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{Cl}^{-}\)
3 \(\mathrm{Cl}^{-}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{HCl}\)
4 \(\mathrm{HCl}-\mathrm{H}_{2} \mathrm{O}, \mathrm{H}_{3} \mathrm{O}^{+}-\mathrm{Cl}^{-}\)
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CHXI07:EQUILIBRIUM

314430 Ammonium ion is

1 a conjugate acid
2 a conjugate base
3 Neither an acid nor a base
4 Both an acid and a base
CHXI07:EQUILIBRIUM

314431 The no. of conjugate acid-base pairs present in the aqueous solution of \(\mathrm{H}_{3} \mathrm{PO}_{3}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314432 Which of the following statement (s) is/are correct?
(I) Water has ability to act both as an acid and a base
(II) In pure water one \(\mathrm{H}_{2} \mathrm{O}\) molecule donate proton and acts an acid and another water molecule accepts a proton and acts as a base.

1 Both (I) and (II)
2 Neither (I) nor (II)
3 Only (I)
4 Only (II)
CHXI07:EQUILIBRIUM

314433 The ionisation of hydrochloric acid in water is given below
\({\text{HC}}{{\text{l}}_{{\text{(aq)}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}} \rightleftharpoons {{\text{H}}_{\text{3}}}{\text{O}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
Conjugate acid-base pairs in this ionisation are

1 \(\mathrm{HCl}-\mathrm{Cl}^{-}, \mathrm{H}_{2} \mathrm{O}-\mathrm{H}_{3} \mathrm{O}^{+}\)
2 \(\mathrm{HCl}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{Cl}^{-}\)
3 \(\mathrm{Cl}^{-}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{HCl}\)
4 \(\mathrm{HCl}-\mathrm{H}_{2} \mathrm{O}, \mathrm{H}_{3} \mathrm{O}^{+}-\mathrm{Cl}^{-}\)
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CHXI07:EQUILIBRIUM

314430 Ammonium ion is

1 a conjugate acid
2 a conjugate base
3 Neither an acid nor a base
4 Both an acid and a base
CHXI07:EQUILIBRIUM

314431 The no. of conjugate acid-base pairs present in the aqueous solution of \(\mathrm{H}_{3} \mathrm{PO}_{3}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314432 Which of the following statement (s) is/are correct?
(I) Water has ability to act both as an acid and a base
(II) In pure water one \(\mathrm{H}_{2} \mathrm{O}\) molecule donate proton and acts an acid and another water molecule accepts a proton and acts as a base.

1 Both (I) and (II)
2 Neither (I) nor (II)
3 Only (I)
4 Only (II)
CHXI07:EQUILIBRIUM

314433 The ionisation of hydrochloric acid in water is given below
\({\text{HC}}{{\text{l}}_{{\text{(aq)}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}} \rightleftharpoons {{\text{H}}_{\text{3}}}{\text{O}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
Conjugate acid-base pairs in this ionisation are

1 \(\mathrm{HCl}-\mathrm{Cl}^{-}, \mathrm{H}_{2} \mathrm{O}-\mathrm{H}_{3} \mathrm{O}^{+}\)
2 \(\mathrm{HCl}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{Cl}^{-}\)
3 \(\mathrm{Cl}^{-}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{HCl}\)
4 \(\mathrm{HCl}-\mathrm{H}_{2} \mathrm{O}, \mathrm{H}_{3} \mathrm{O}^{+}-\mathrm{Cl}^{-}\)
NEET DIGITAL LIBRARY
CHXI07:EQUILIBRIUM

314430 Ammonium ion is

1 a conjugate acid
2 a conjugate base
3 Neither an acid nor a base
4 Both an acid and a base
CHXI07:EQUILIBRIUM

314431 The no. of conjugate acid-base pairs present in the aqueous solution of \(\mathrm{H}_{3} \mathrm{PO}_{3}\) is

1 2
2 3
3 4
4 5
CHXI07:EQUILIBRIUM

314432 Which of the following statement (s) is/are correct?
(I) Water has ability to act both as an acid and a base
(II) In pure water one \(\mathrm{H}_{2} \mathrm{O}\) molecule donate proton and acts an acid and another water molecule accepts a proton and acts as a base.

1 Both (I) and (II)
2 Neither (I) nor (II)
3 Only (I)
4 Only (II)
CHXI07:EQUILIBRIUM

314433 The ionisation of hydrochloric acid in water is given below
\({\text{HC}}{{\text{l}}_{{\text{(aq)}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}} \rightleftharpoons {{\text{H}}_{\text{3}}}{\text{O}}_{{\text{(aq)}}}^{\text{ + }}{\text{ + Cl}}_{{\text{(aq)}}}^{\text{ - }}\)
Conjugate acid-base pairs in this ionisation are

1 \(\mathrm{HCl}-\mathrm{Cl}^{-}, \mathrm{H}_{2} \mathrm{O}-\mathrm{H}_{3} \mathrm{O}^{+}\)
2 \(\mathrm{HCl}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{Cl}^{-}\)
3 \(\mathrm{Cl}^{-}-\mathrm{H}_{3} \mathrm{O}^{+}, \mathrm{H}_{2} \mathrm{O}-\mathrm{HCl}\)
4 \(\mathrm{HCl}-\mathrm{H}_{2} \mathrm{O}, \mathrm{H}_{3} \mathrm{O}^{+}-\mathrm{Cl}^{-}\)
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