Questions on Bases – Naming and Formulas
30 Multiple-Choice Questions: Bases – Naming and Formulas
Questions
1. What is the formula for sodium hydroxide?
A) NaOH
B) NaH
C) Na₂O
D) Na₂OH
E) NaO
2. What is the name of KOH?
A) Potassium hydride
B) Potassium oxide
C) Potassium hydroxide
D) Kalium hydroxide
E) Potass hydroxide
3. What is the formula for calcium hydroxide?
A) CaOH
B) Ca(OH)
C) Ca₂OH
D) Ca(OH)₂
E) CaH₂O
4. What is the name of Ba(OH)₂?
A) Barium hydroxide
B) Barium oxide
C) Barium dihydroxide
D) Barium hydroxo
E) Barium hydrate
5. What is the formula for ammonium hydroxide?
A) NH₄OH
B) NH₃OH
C) NH₄(OH)₂
D) NH₃·H₂O
E) NH₂OH
6. What is the name of LiOH?
A) Lithium hydride
B) Lithium oxide
C) Lithium hydroxide
D) Lithium peroxide
E) Lithium hydroxo
7. What is the formula for aluminum hydroxide?
A) AlOH
B) Al(OH)₂
C) Al(OH)₃
D) Al₂(OH)₃
E) Al₃OH
8. What is the name of Mg(OH)₂?
A) Magnesium hydrogen oxide
B) Magnesium hydroxide
C) Magnesium dihydroxide
D) Magnesium oxide
E) Magnesium peroxide
9. What is the formula for iron(III) hydroxide?
A) FeOH
B) Fe(OH)₃
C) Fe₃(OH)₂
D) Fe₂(OH)₃
E) Fe₃OH
10. What is the name of Sr(OH)₂?
A) Strontium hydroxide
B) Strontium oxide
C) Strontium hydride
D) Strontium dihydroxide
E) Strong hydroxide
11. What is the formula for zinc hydroxide?
A) ZnOH
B) Zn(OH)₂
C) Zn₂OH
D) Zn(OH)₃
E) Zn₂(OH)₃
12. What is the name of Cu(OH)₂?
A) Copper(I) hydroxide
B) Copper(II) hydroxide
C) Copper oxide
D) Cuprous hydroxide
E) Copper hydroxylate
13. What is the formula for iron(II) hydroxide?
A) Fe(OH)₂
B) FeOH
C) Fe₂OH
D) Fe(OH)₃
E) Fe₂(OH)₃
14. What is the name of NH₄OH?
A) Ammonia
B) Ammonium hydrogen oxide
C) Ammonium hydroxide
D) Amine water
E) Nitrogen hydroxide
15. What is the formula for nickel(II) hydroxide?
A) NiOH
B) Ni(OH)₂
C) Ni₂OH
D) Ni₂(OH)₂
E) Ni(OH)₃
16. What is the name of NaOH?
A) Sodium oxide
B) Sodium peroxide
C) Sodium hydroxide
D) Sodium dihydroxide
E) Sodium hydride
17. What is the formula for chromium(III) hydroxide?
A) Cr(OH)₂
B) Cr₃OH
C) CrOH
D) Cr(OH)₃
E) Cr₂(OH)₃
18. What is the name of Be(OH)₂?
A) Beryllium oxide
B) Beryllium dihydroxide
C) Beryllium hydroxide
D) Beryllium hydrogen oxide
E) Beryllium hydride
19. What is the formula for lead(II) hydroxide?
A) PbOH
B) Pb(OH)₃
C) Pb₂OH
D) Pb(OH)₂
E) Pb₂(OH)₃
20. What is the name of Sn(OH)₂?
A) Tin hydroxide
B) Tin(IV) hydroxide
C) Tin(II) hydroxide
D) Stannic hydroxide
E) Tin oxide
21. What is the formula for cadmium hydroxide?
A) CdOH
B) Cd(OH)
C) Cd(OH)₂
D) Cd₂OH
E) Cd(OH)₃
22. What is the name of Mn(OH)₂?
A) Manganese hydroxide
B) Manganese(IV) hydroxide
C) Manganese(II) hydroxide
D) Manganic hydroxide
E) Mangano hydroxide
23. What is the formula for silver hydroxide?
A) AgOH
B) Ag(OH)₂
C) Ag₂OH
D) Ag₂(OH)₂
E) Ag(OH)
24. What is the name of CsOH?
A) Cesium peroxide
B) Cesium oxide
C) Cesium hydroxide
D) Cesium hydride
E) Cesium hydroxyde
25. What is the formula for rubidium hydroxide?
A) Rb(OH)₂
B) Rb₂OH
C) RbOH
D) RbH
E) Rb₂O
26. What is the name of Cr(OH)₃?
A) Chromium(I) hydroxide
B) Chromium(III) hydroxide
C) Chromous hydroxide
D) Chromium oxide
E) Chromium(II) hydroxide
27. What is the formula for tin(IV) hydroxide?
A) Sn(OH)₂
B) Sn(OH)₄
C) SnOH
D) Sn₄OH
E) SnO₂(OH)₂
28. What is the name of Pb(OH)₄?
A) Lead(IV) hydroxide
B) Lead(II) hydroxide
C) Plumbic hydroxide
D) Lead oxide
E) Lead tetrahydroxide
29. What is the formula for bismuth(III) hydroxide?
A) BiOH
B) Bi(OH)₂
C) Bi(OH)₃
D) Bi₂OH
E) Bi₃(OH)
30. What is the name of Al(OH)₃?
A) Aluminum dihydroxide
B) Aluminum oxide
C) Aluminum hydroxide
D) Trihydroxyaluminum
E) Aluminic hydroxide
- Questions on Ternary Ionic Compounds – Naming and Formulas
- Questions on Binary Molecular Compounds – Naming and Formulas
- Questions on Acids – Naming and Formulas
Answers and Explanations
1. A) NaOH – Sodium hydroxide is a strong base with formula NaOH.
2. C) Potassium hydroxide – KOH is a strong base.
3. D) Ca(OH)₂ – Calcium forms a +2 ion, needs two hydroxide ions.
4. A) Barium hydroxide – Ba²⁺ and two OH⁻ ions.
5. A) NH₄OH – Ammonium hydroxide is NH₄⁺ + OH⁻.
6. C) Lithium hydroxide – Li⁺ and OH⁻.
7. C) Al(OH)₃ – Al³⁺ needs three OH⁻ ions.
8. B) Magnesium hydroxide – Mg²⁺ + 2 OH⁻.
9. B) Fe(OH)₃ – Fe³⁺ (iron(III)) needs three OH⁻.
10. A) Strontium hydroxide – Sr²⁺ + 2 OH⁻.
11. B) Zn(OH)₂ – Zinc forms +2 ions.
12. B) Copper(II) hydroxide – Cu²⁺ + 2 OH⁻.
13. A) Fe(OH)₂ – Fe²⁺ (iron(II)) + 2 OH⁻.
14. C) Ammonium hydroxide – NH₄⁺ and OH⁻.
15. B) Ni(OH)₂ – Nickel(II) = Ni²⁺ + 2 OH⁻.
16. C) Sodium hydroxide – Na⁺ and OH⁻.
17. D) Cr(OH)₃ – Chromium(III) needs three OH⁻.
18. C) Beryllium hydroxide – Be²⁺ + 2 OH⁻.
19. D) Pb(OH)₂ – Lead(II) = Pb²⁺ + 2 OH⁻.
20. C) Tin(II) hydroxide – Sn²⁺ + 2 OH⁻.
21. C) Cd(OH)₂ – Cadmium forms +2 ions.
22. C) Manganese(II) hydroxide – Mn²⁺ + 2 OH⁻.
23. A) AgOH – Silver typically forms Ag⁺.
24. C) Cesium hydroxide – Cs⁺ + OH⁻.
25. C) RbOH – Rubidium forms +1 ion.
26. B) Chromium(III) hydroxide – Cr³⁺ + 3 OH⁻.
27. B) Sn(OH)₄ – Tin(IV) = Sn⁴⁺ + 4 OH⁻.
28. A) Lead(IV) hydroxide – Pb⁴⁺ + 4 OH⁻.
29. C) Bi(OH)₃ – Bismuth(III) = Bi³⁺ + 3 OH⁻.
30. C) Aluminum hydroxide – Al³⁺ + 3 OH⁻.
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