CHAPTER 4

REACTIONS IN AQUEOUS SOLUTION

MULTIPLE CHOICE QUESTIONS

4.1 Which of the following compounds is a strong electrolyte?
E
A. H2O
B. O2
C. H2SO4
D. C6H12O6 (glucose)
E. CH3COOH (acetic acid)

Answer: C

4.2 Which of the following compounds is a strong electrolyte?
E
A. H2O
B. N2
C. KOH
D. C2H6O (ethanol)
E. CH3COOH (acetic acid)

Answer: C

4.3 Which of the following compounds is a weak electrolyte?
E
A. HCl
B. CH3COOH (acetic acid)
C. C6H12O6 (glucose)
D. O2
E. NaCl

Answer: B

4.4 Which of the following compounds is a weak electrolyte?
E
A. HCl
B. NH3
C. C6H12O6 (glucose)
D. N2
E. KCl

Answer: B 4.5 Which of the following
A. CaNO3 B. Ca2(NO3)3 C. Ca3(NO3)2 D. Ca2NO3 E. Ca(NO3)2

Answer: E

4.27 What is the chemical formula of the salt produced by neutralization of sodium
M hydroxide with sulfuric acid?

A. NaSO3 B. Na2(SO4)3 C. Na(SO4)2 D. Na2SO4 E. Na3SO4

Answer: D

4.28 What is the chemical formula of the salt produced by neutralization of potassium
M hydroxide (KOH) with sulfuric acid (H2SO4)?

A. KSO3 B. K2(SO4)3 C. K2SO4 D. K(SO4)2 E. KSO4

Answer: C

4.29 The oxidation number of N in NaNO3 is:
M
A. +6 B. +5 C. +3 D. ─ 3 E. none of these

Answer: B

4.30 The oxidation number of S in K2SO4 is:
M
A. +6 B. +4 C. +2 D. ─ 1 E. none of these

Answer: A

4.31 The oxidation number of Mn in KMnO4 is:
M
A. +8 B. +7 C. +5 D. ─ 7 E. ─ 8

Answer: B

4.32 The oxidation number of Fe in K3Fe(CN)6 is:
H
A. +3 B. +2 C. +1 D. ─ 3 E. ─ 4

Answer: A

4.33 The oxidation number of Cr in Cr2O72 ─ is:
H
A. ─ 12 B. ─ 7 C. ─ 2 D. +6 E. +7

Answer: D

4.34 The oxidation number of Cl in ClO3─ is:
H
A. ─ 1 B. +7 C. +5 D. +3 E. none of these

Answer: C

4.35 The oxidation number of