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प्रश्न
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+ |
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उत्तर
| Column I | Column II |
| 1. Elements having valency of two. | B: Divalent |
| 2. An anion | A: Br1− |
| 3. A gaseous non-metal | F: Nitrogen |
| 4. A cation. | J: K1+ |
| 5. The term used for the substances which take part in the chemical reaction | C: Reactants |
| 6. The meaning of the symbol ‘Δ’ over the arrow in a chemical equation. | I: Heat required |
| 7. The chemical name for nitrogen monoxide. | E: Nitric oxide |
| 8. A radical containing nitrogen and hydrogen only | D: Ammonium |
| 9. The chemical name for dinitrogen oxide | H: Nitrous oxide |
| 10. The valency of noble gases | G: Zero |
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संबंधित प्रश्न
Write the molecular formula of the following compounds of Sulphur trioxide.
Find the number and names of elements present in them and calculate their molecular masses.
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Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formulae for the following compounds and name the elements present of Common salt.
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Write the molecular formulae of Hydrogen sulphate (sulphuric acid).
Write the molecular formulae of Ammonium carbonate.
Explain the term ‘variable valency’.
Write the chemical formula of the following compound in a step-by-step manner –
Potassium nitrate
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] sulphur
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] oxide
