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प्रश्न
Match the compounds in List I – 1 to 20 with their correct formulas in List II – A to T.
| List I | List II |
| 1. Copper [I] sulphide | A: KMnO4 |
| 2. Potassium permanganate | B: Mg3N2 |
| 3. Phosphoric acid | C: Mg(NO3)2 |
| 4. Copper [I] oxide | D: Al2(SO4)3 |
| 5. Carbonic acid | E: Na2ZnO2 |
| 6. Aluminium sulphide | F: N2O |
| 7. Iron [II] oxide | G: H2CO3 |
| 8. Iron [III] sulphide | H: Al2S3 |
| 9. Iron [II] sulphate | I: NO |
| 10. Sodium zincate | J: FeS |
| 11. Nitrous oxide | K: Fe2S3 |
| 12. Aluminium sulphate | L: H3PO4 |
| 13. Magnesium nitride | M: Cu2S |
| 14. Iron [III] sulphate | N: CuS |
| 15. Copper [II] oxide | O: Fe2O3 |
| 16. Iron [III] oxide | P: FeO |
| 17. Nitric oxide | Q: FeSO4 |
| 18. Copper [II] sulphide | R: Fe2(SO4)3 |
| 19. Iron [II] sulphide | S: CuO |
| 20. Magnesium nitrate | T: Cu2O |
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उत्तर
| List I | List II |
| 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 |
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संबंधित प्रश्न
Write the molecular formulae of Copper oxide.
Write the molecular formulae for the following compounds and name the elements present of Sulphuric acid
Write the molecular formulae of Ammonium carbonate.
With reference to water and ammonia as compounds respectively, state the valency of oxygen and nitrogen.
Write the chemical formula of the following compound in a step-by-step manner –
Magnesium nitride
Write the chemical formula of the following compound in a step-by-step manner –
Copper [I] sulphide
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] chloride
Write the chemical formula of the following compound in a step-by-step manner –
Iron [II] hydroxide
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] oxide
Match the statements – 1 to 10 below with their correct answers from – A to J.
| Column I | Column II |
| 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 ‘Δ’ over the arrow in a chemical equation. | F: Nitrogen |
| 7. The chemical name for nitrogen monoxide. | G: Zero |
| 8. A radical containing nitrogen and hydrogen only | H: Nitrous oxide |
| 9. The chemical name for dinitrogen oxide | I: Heat required |
| 10. The valency of noble gases | J: K1+ |
