Free Salts and Hydrolysis MCQs with Answers
11 Salts and Hydrolysis MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Salt hydrolysis explains how ions from weak acids or weak bases react with water and affect the pH of a solution. The content covers acidic, basic and neutral salts, hydrolysis equations, Ka, Kb and Kw relationships, degree of hydrolysis and buffer connections, distinguishing hydrolysis from simple acid-base neutralisation.
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11 questions
- A. NH4Cl
- B. NaCN
- C. CH,COONa
- D. K,SO,
Explanation: NH4Cl is a strong acidic salt because it form by strong acid HCl and ammonia
Correct answer: NH4Cl- A. Normal
- B. Acidic
- C. Basic
- D. Amphoteric
Explanation: The explanation for this question will be added soon.
Correct answer: Acidic- A. NaHCO3
- B. NaCO3
- C. Na2CO3
- D. Ca(OH)2
Explanation: The explanation for this question will be added soon.
Correct answer: Na2CO3- A. CH3 NH3 Cl
- B. CH3 O- Na+
- C. C6H5 O-Na+
- D. C6H5NH2
- E. H2NCH2CO2H
Explanation: The sodium salt of phenol, which is weakly acidic. When dissolved in water, it would give a weakly alkaline solution due to the hydrolysis…
Correct answer: C6H5 O-Na+- A. Hydration
- B. Hydrolysis
- C. Preventing of rapid hardening
- D. All of the above options are correct
Explanation: During the grinding there is added about 2% of gypsum which prevents the cement from hardening too rapidly.The addition of gypsum…
Correct answer: Preventing of rapid hardening- A. H2NCONH2
- B. NH4COONH4
- C. H2NCOONH2
- D. NH2COONH4
Explanation: Ammonium carbamate is a salt formed by the reaction of ammonia with carbon dioxide or carbamic acid.
Correct answer: NH2COONH4- A. Water brings them close
- B. Water helps them in bonding
- C. Water dissolve them in ions
- D. Water reacts with them
Explanation: When substances dissolve in water, they often undergo a process called hydration, where the water molecules surround and separate the…
Correct answer: Water dissolve them in ions- A. [Ag(NH3)2]Cl
- B. [Ag(NH3)]Cl
- C. [Ag(NH3)4]Cl
- D. [Ag(NH3)6]Cl
Explanation: When ammonium hydroxide is added to silver chloride, the silver chloride dissolves in the ammonia to form a diamine complex: [Ag(NH3)2]Cl.
Correct answer: [Ag(NH3)2]Cl- A. NH4Cl
- B. NaNO3
- C. Na2CO3
- D. Na2SO4
Explanation: The correct answer is Na2CO3. Sodium carbonate forms an alkaline solution because it undergoes hydrolysis in water, releasing hydroxide…
Correct answer: Na2CO310. The compound used in borax bead test for the detection of basic redicals to form colored bead is:
- A. H2BO2
- B. (C2H5)3BO3
- C. Ca2B6O115H2O
- D. Na2B4O710H2O
Explanation: Per one molecule of borax, there are 10 molecules of water of crystallization. Hence, metaborate is formed in the borax bead test.
Correct answer: Na2B4O710H2O- A. Ca(OH)2
- B. SiCl4
- C. KCl
- D. SrCl2
Explanation: KCl is a strong electrolyte because it fully dissociates into ions (K+ and Cl-) in water, allowing efficient conduction of electricity.
Correct answer: KClSalts and Hydrolysis MCQs: common questions
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