Equilibrium questions
1777 published questions with worked solutions.
- The salt of a strong acid and weak base (FeCl_2) is:
- The pH indicators are:
- The aqueous solution of AlCl_3 is acidic due to the hydrolysis of:
- When BaCl_2 is dissolved in water, pH of the aqueous solution is:
- For anionic hydrolysis, pH is given by:
- The suitable indicator for the titration of a strong acid and weak base is:
- The indicator used in the titration of oxalic acid with caustic soda solution is:
- The pH of a solution is increased from 3 to 6. Its H^+ ion concentration will be:
- 1 M NaCl and 1 M HCl are present in an aqueous solution. The solution is:
- For two acids A and B, pK_a=1.2 and 2.8 respectively. Which is true?
- The solubility product of a salt having general formula MX_2 in water is 4 10^ -12 . The concentration of M^ 2+ ions in the...
- Which of the following solutions will have pH close to 1.0?
- The solubility product of BaSO_4 is 1.5 10^ -9 . The precipitation in a 0.01 M Ba^ 2+ solution will start, on adding H_2SO_4 of...
- Given pH of solution A is 3 and it is mixed with an equal volume of another solution B having pH = 2. After mixing, the resultant...
- The pK_a of acetylsalicylic acid (aspirin) is 3.5. The pH of gastric juice in the human stomach is about 2–3 and the pH in the...
- Which of the following will not function as a buffer solution? (i) NaCl and NaOH (ii) NaOH and NH_4OH (iii) CH_3COONH_4 and HCl...
- Assuming complete dissociation, which of the following aqueous solutions will have the same pH value? (i) 100 mL of 0.01 M HCl...
- A precipitate of AgCl is formed when equal volumes of the following are mixed [K_ sp for AgCl=10^ -10 ]:
- **Assertion:** Dry HCl shall not act as an acid. **Reason:** For the acidic or basic properties, the presence of water is...
- **Assertion:** Buffer system of carbonic acid and sodium bicarbonate is used for the precipitation of hydroxides of third group...
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