The number of ejected photoelectrons increases with increase. is strong electrolyte?
Correct answer: C. KCl
- 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. Ca(OH)2 is a weak base and weak electrolyte, which means it does not fully dissociate into ions. SiCl4 does not dissociate at all in water, making it a non-electrolyte. SrCl2 was incorrectly described; it is a strong electrolyte as it also fully dissociates in solution.
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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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