Which of the following salts will give highest pH in water
Options
(a) KCl (b) NaCl (c) Na₂CO₃ (d) CuSO₄
Correct Answer:
Na₂CO₃
Explanation:
Na₂CO₃ is a salt of strong base (NaOH) and weak […]
Using the Gibb’s energy change,ΔG⁰ = +63.3 kJ, for the following reaction ,Ag₂CO₃(s) ⇌ 2Ag⁺(aq) + CO₃²⁻(aq) the Ksp of Ag₂CO₃(s) in water at 25⁰C is
Options
(a) 3.2 ˣ 10⁻²⁶ (b) 8.0 […]
For the reversible reaction , N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + heat The equilibrium shifts in forward direction
Options
(a) by increasing the concentration of NH₃(g) (b) by decreasing the pressure (c) by […]
For a given exothermic reaction, Kp and K’p are the equilibrium constants at temperature T₁ and T₂, respectively. Assuming that heat of reaction is constant in temperature range between T₁ and T₂, it is readily […]
If 0.1 M of a weak acid is taken, and its percentage of degree of ionization is 1.34%, then calculate its ionization constant.
Options
(a) 0.8 x 10⁻⁵ (b) 1.79 x 10⁻⁵ (c) […]
Arrange the following in increasing order of acidity H₃PO₄ , H₂CO₃ , HCl , HI
Options
(a) H₂CO₃ < H₃PO₄ < HCl < HI (b) H₃PO₄ < HCl < H₂CO₃ < HI (c) […]
Which of the following is the buffer solution
Options
(a) CH₃COOH + CH₃COONa (b) CH₃COOH + CH₃COONH₄ (c) CH₃COOH + NH₄Cl (d) NaOH + NaCl
Correct Answer:
CH₃COOH + CH₃COONa
Explanation:
No explanation […]
Indicator used in the titration of oxalic acid and NaOH is
Options
(a) phenolphthalein (b) methyl red (c) thymol blue (d) methyl orange
Correct Answer:
phenolphthalein
Explanation:
No explanation available. Be the first […]
pH of pure water is
Options
(a) pressuredependent (b) temperature independent (c) temperature dependent (d) none of these
Correct Answer:
temperature dependent
Explanation:
No explanation available. Be the first to write the explanation […]
If the pH of a solution is 4, then its OH⁻ concentration is
Options
(a) 10⁻¹⁴ (b) 10 x 10⁻⁵ (c) 10⁻⁴ (d) 10⁻¹⁰
Correct Answer:
10⁻¹⁰
Explanation:
No explanation available. Be the […]
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