Тест на тему ""Sulfur and its compounds""

"Sulfur and its compounds"

1. Electrons in a sulfur atom are arranged as

1) 2, 6 2) 2, 8, 8 3) 2, 8, 6 4) 2, 8, 8, 6

2. Sulfur has more oxidizing properties than

1) fluorine 2) chlorine 3) phosphorus 4) oxygen

3. Oxidation number of sulfur changes from +6 to 0

1) S,SO₂, SO₃ 2) H₂SO₄, SO₂, H₂S

3) Na₂SO₄, K₂S, S 4) SO₂, K₂SO₃, S

4. Sulfuric acid solution can react with each of the following:

1) MgO, CO₂, NaCl, Fe(OH)₃ 3) NaOH, ZnO, Cu, Na₂CO₃

2) CuO, Fe, HNO₃, NaOH 4) Mg(OH)₂, BaCl_2, FeO, Zn

5. In which reaction S⁺⁶ → S⁺⁴

1) SO₃ + H₂O = H₂SO₄ 3) H₂SO₄ + Zn = ZnSO₄ + H₂

2) 2SO₂ + O₂ = 2SO₃ 4) Cu +2H₂SO₄ = CuSO₄ + SO₂ + 2H₂O

6.Which compound is used to identify sulfate ions?

1) BaCl₂ 2) AgNO₃ 3) HCl 4) NaOH

7. Both sulfur dioxide and sulfur trioxide will react with

1) H₂O , CO₂ 2) NaOH, CaO 3) H₂O, Cl₂ 4) H₂S, O₂

8. For the following changes H₂S → SO₂ → SO₃→ K₂SO₄ you have to use

1) water, oxygen, potassium oxide 3) oxygen, water, potassium

2) oxygen, oxygen, potassium hydroxide 4) water, oxygen, potassium carbonate

9. In the reaction H₂SO₃ + Br₂ + H₂O= H₂SO₄ + HBr , sulfur

1) reducing agent 3) oxidizing agent

2) decreases oxidation number 4) does not change oxidation number

10. Dilute sulfuric acid does not react with each of the following compounds

1) CuO, HCl 2) Cu, NaCl 3) Zn, NaOH 4) CuSO₄, MgO

11. For the following changes S → H₂S → SO₂ → CaSO₃ you have to use

1) hydrogen, water, calcium oxide 3) hydrogen, oxygen, calcium hydroxide

2) hydrogen, oxygen, calcium 4) water, water, calcium

12. For the following changes BaCO₃→ X → Ba(NO₃)₂ → BaSO₄ you have to use

1) HCl, HNO₃, H₂SO₄ 3) H₂SO₄, HNO₃, H₂SO₄

2) heat, HNO_3,, K₂SO₄ 4) heat, NaNO₃, H₂SO₄

13. Dilute sulfuric acid reacts with both of the following metals

1) Mg and Cu 2) Ag and Ni 3) Hg and K 4) Fe and Zn

14. For the following changes CuO → Cu → X → CaSO₄ you have to use

1) hydrogen, chlorine, sulfuric acid

2) hydrogen, sulfuric acid solution, calcium hydroxide

3) hydrogen, concentrated sulfuric acid, calcium hydroxide

4) carbon, concentrated sulfuric acid, calcium carbonate

15. Reaction of water with which of the following compounds is an oxidation-reduction reaction

1) sulfur dioxide 2) calcium oxide 3) sodium 4) ammonia

16. Sulfuric acid solution can react with both of the following compounds

1) K₂CO₃, MgO

2) Ag, SiO₂

3) Al(OH)₃, HNO₃

4) BaCl₂, H₂O

Write reactions

17. Which of the following compounds dissociate into ions in an aqueous solution?

1) potassium hydroxide 2) barium sulfate 3) hydrogen sulfide 4) glucose

18. Sulfur dioxide reacts with 160 g of 10% sodium hydroxide solution. What is the mass of produced neutral salt?

1) 28,4 g 2) 25, 2g 3) 56,8 g 4) 50,4 g

19. Calculate mass of a precipitate produced as a result of reaction of 200 grams of 7% barium chloride solution with sulfuric acid solution.

1) 33,3 g 2) 31,4 g 3) 23,3 g 4) 20,8 g

20. Sulfur dioxide reacts with

1) water

2) nitrogen

3) hydrogen sulfide

4) sodium chloride

5) phosphoric acid

Answer:________ Write reactions

21. Dilute sulfuric acid reacts with

1) copper

2) silicon dioxide

3) calcium oxide

4) barium nitrate

5) phosphorus

Answer:________ Write reactions

22. Sulfur dioxide reacts with both of the following compounds

1) P₂O₅, HNO₃ 2) O₂, KOH 3) SO₃, Al₂O₃ 4)H₃PO₄, K₂O

Write reactions

23. In which of the following reaction sulfur behaves as an oxidizing agent?

1) S+ O₂ → SO₂

2) H₂ + S → H₂S

3) Cl₂ + S → SCl₄

4) SO₂+ K₂O → K₂SO₃

24. Match reaction and change in an oxidation number of sulfur

Answer

25. Match reaction and change in an oxidation number of an oxidizing agent

Answer:

26. Match reaction and change in an oxidation number of an oxidizing agent.

Answer:

27 . Match compounds and reagents it can react with

Answer: