Chemistry
Match the compounds in List I - 1 to 20 with their correct formulas in List II - A to T.
| List I | |||
|---|---|---|---|
| 1. Copper [I] sulphide | 2. Potassium permanganate | 3. Phosphoric acid | 4. Copper [I] oxide |
| 5. Carbonic acid | 6. Aluminium sulphide | 7. Iron [II] oxide | 8. Iron [III] sulphide |
| 9. Iron [II] sulphate | 10. Sodium zincate | 11. Nitrous oxide | 12. Aluminium sulphate |
| 13. Magnesium nitride | 14. Iron [III] sulphate | 15. Copper [II] oxide | 16. Iron [III] oxide |
| 17. Nitric oxide | 18. Copper [II] sulphide | 19. Iron [II] sulphide | 20. Magnesium nitrate |
| List II | |||
|---|---|---|---|
| A. KMnO4 | B. Mg3N2 | C. Mg(NO3)2 | D. Al2(SO4)3 |
| E. Na2ZnO2 | F. N2O | G. H2CO3 | H. Al2S3 |
| I. NO | J. FeS | K. Fe2S3 | L. H3PO4 |
| M. Cu2S | N. CuS | O. Fe2O3 | P. FeO |
| Q. FeSO4 | R. Fe2(SO4)3 | S. CuO | T. Cu2O |
Chemical Formula
25 Likes
Answer
| Compounds | Formulas |
|---|---|
| 1. Copper [I] sulphide | M. Cu2S |
| 2. Potassium permanganate | A. KMnO4 |
| 3. Phosphoric acid | L. H3PO4 |
| 4. Copper [I] oxide | T. Cu2O |
| 5. Carbonic acid | G. H2CO3 |
| 6. Aluminium sulphide | H. Al2S3 |
| 7. Iron [II] oxide | P. FeO |
| 8. Iron [III] sulphide | K. Fe2S3 |
| 9. Iron [II] sulphate | Q. FeSO4 |
| 10. Sodium zincate | E. Na2ZnO2 |
| 11. Nitrous oxide | F. N2O |
| 12. Aluminium sulphate | D. Al2(SO4)3 |
| 13. Magnesium nitride | B. Mg3N2 |
| 14. Iron [III] sulphate | R. Fe2(SO4)3 |
| 15. Copper [II] oxide | S. CuO |
| 16. Iron [III] oxide | O. Fe2O3 |
| 17. Nitric oxide | I. NO |
| 18. Copper [II] sulphide | N. CuS |
| 19. Iron [II] sulphide | J. FeS |
| 20. Magnesium nitrate | C. Mg(NO3)2 |
Answered By
17 Likes
Related Questions
Balance the following equations:
(a) P + O2 ⟶ P2O5
(b) Na2O + H2O ⟶ NaOH
(c) K + H2O ⟶ KOH + H2
(d) Fe + H2O ⇌ Fe3O4 + H2
(e) CaO + HCl ⟶ CaCl2 + H2O
(f) Fe + Cl2 + FeCl3
(g) Al + H2O ⟶ Al2O3 + H2
(h) Al + H2SO4 ⟶ Al2(SO4)3 + H2
(i) Fe2O3 + H2 ⟶ Fe + H2O
(j) C + H2SO4 ⟶ CO2 + H2O + SO2
(k) Pb3O4 ⟶ PbO + O2
(l) Al + O2 ⟶ Al2O3
(m) NO + O2 ⟶ NO2
(n) ZnS + O2 ⟶ ZnO + SO2
(o) Pb3O4 + HCl ⟶ PbCl2 + H2O + Cl2
(p) ZnO + NaOH ⟶ Na2ZnO2 + H2O
(q) H2S + Cl2 ⟶ S + HCl
(r) FeCl3 + NaOH ⟶ NaCl + Fe(OH)3
(s) Fe2O3 + CO ⟶ Fe + CO2
(t) KHCO3 ⟶ K2CO3 + H2O + CO2
(u) CuO + NH3 ⟶ Cu + H2O + N2
Complete the statements given below by filling in the blank with the correct word/s.
The formula of silver [I] chloride is …………… [AgCl/AgCl2].
The basic unit of an element is a/an …………… [molecule/atom/ion].
Atom contains ………….. [neutron/nucleus], with positively charged …………… [electrons/protons] .
Element ………….. [calcium/lead/carbon] has the symbol derived from its Latin name 'plumbum'.
From the elements - He, Br, Pt & O; the element which forms a polyatomic molecule is …………… & which is liquid at room temperature is ……………
The valency of iron in FeO is …………… [2+/1+] of chlorine [chloride] in CaCl2 is ………….. [1-/2-] and of dichromate in K2Cr2O7 is ………….. [2+/2-]
Match the statements - 1 to 10 below with their correct answers from - A to J.
1. Elements having valency of two A: Br1- 2. An anion B: Divalent 3. A gaseous non-metal C: Reactants 4. A cation D: Ammonium 5. The term used for the substances which take part in the chemical reaction E: Nitric oxide 6. The meaning of the symbol 'ꕔ' over the arrow in a chemical equation F: Nitrogen 7. The chemical name for nitrogen monoxide G: Zero 8. A radical containing nitrogen & hydrogen only H: Nitrous oxide 9. The chemical name for dinitrogen oxide I: Heat required 10. The valency of noble gases J: K1+ Underline the incorrectly balanced compound in each equation & rewrite the correct equation.
2Na + 3H2O ⟶ 2NaOH + H2
4P + 4O2 ⟶ 2P2O5
Fe2O3 + 2H2 ⟶ 2Fe + 3H2O
2Al + 2H2SO4 ⟶ Al2(SO4)3 + 3H2
N2 + 3H2 ⇌ NH3
ZnO + 3NaOH ⟶ Na2ZnO2 + H2O
FeCl3 + 3NH4OH ⟶ 2NH4Cl + Fe(OH)3
FeS + 2HCl ⟶ 2FeCl2 + H2S
3NH3 + H2SO4 ⟶ (NH4)2SO4
PbO2 + 4HCl ⟶ PbCl2 + H2O + Cl2