Correct relation between dissociation constant of a dibasic acid is
Correct relation between dissociation constant of a dibasic acid is
Options
(a) Ka₁ = Ka₂ (b) Ka₁ > Ka₂ (c) Ka₁ < Ka₂ (d) Ka₁ = 1/Ka₂
Correct Answer:
Ka₁ > Ka₂
Chemistry
The solubility of saturated solution of calcium fluoride is 2 ˣ 10⁻⁴ moles
The solubility of saturated solution of calcium fluoride is 2 ˣ 10⁻⁴ moles per litre.Its solubility product is
Options
(a) 22 ˣ 10⁻¹¹ (b) 14 ˣ 10⁻⁴ (c) 2 ˣ 10⁻² (d) 32 […]
The concentration of [H⁺] and [OH⁻] of a 0.1 M aqueous solution of 2% ionised
The concentration of [H⁺] and [OH⁻] of a 0.1 M aqueous solution of 2% ionised weak acid is [ionic product of water = 1 ˣ 10⁻¹⁴]
Options
(a) 2 ˣ 10⁻³ M and […]
The strongest conjugate base is
The strongest conjugate base is
Options
(a) SO₄²⁻ (b) Cl⁻ (c) NO₃⁻ (d) CH₃COO⁻
Correct Answer:
CH₃COO⁻
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
A physician wishes to prepare a buffer solution at pH = 3.85
A physician wishes to prepare a buffer solution at pH = 3.85 that efficiently resists changes in pH yet contains only small concentration of the buffering agents. which of the following weak acids together with […]
If α is dissociation constant, then the total number of moles for the reaction
If α is dissociation constant, then the total number of moles for the reaction 2HI ⇌ H₂ + I₂ will be
Options
(a) 1 (b) 1 – α (c) 2 (d) 2 – […]
In liquid-gas equilibrium,the pressure of vapours above the liquid is constant
In liquid-gas equilibrium,the pressure of vapours above the liquid is constant at
Options
(a) constant temperature (b) low temperature (c) high temperature (d) none of these
Correct Answer:
constant temperature
Explanation:
No […]
The solubility of AgCl will be minimum in
The solubility of AgCl will be minimum in
Options
(a) 0.01 M CaCl₂ (b) pure water (c) 0.001 M AgNO₃ (d) 0.01 M NaCl
Correct Answer:
0.01 M CaCl₂
Explanation:
No explanation available. […]
The pH value of a 10 M solution of HCl is
The pH value of a 10 M solution of HCl is
Options
(a) equal to 1 (b) equal to 2 (c) less than o (d) equal to 0
Correct Answer:
less than o
The pH value of blood does not appreciably change by a small addition
The pH value of blood does not appreciably change by a small addition of an acid or a base,because the blood
Options
(a) can be easily coagulated (b) contains iron as a part […]