Ionic compounds have high melting and boiling points. Because ionic compounds are formed by the attraction force of two opposite ions and a considerable amount of energy is required to break this strong inter-ionic attraction. For more answers visit to website: https://www.tiwariacademy.com/ncert-soRead more
Ionic compounds have high melting and boiling points. Because ionic compounds are formed by the attraction force of two opposite ions and a considerable amount of energy is required to break this strong inter-ionic attraction.
Zinc is more reactive than Iron. When Zn is added to Iron (II) Sulphate, Zinc displaces Iron from its solutions and Zinc sulphate is formed. Zn(s) + FeSO₄(aq) → ZnSO₄(aq) + Cu(s) For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
Zinc is more reactive than Iron. When Zn is added to Iron (II) Sulphate, Zinc displaces Iron from its solutions and Zinc sulphate is formed.
Zn(s) + FeSO₄(aq) → ZnSO₄(aq) + Cu(s)
When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas Metal + Dilute acid → Salt + Hydrogen Reaction between Iron and H₂SO₄ For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas
Metal + Dilute acid → Salt + Hydrogen
Reaction between Iron and H₂SO₄
(i) Iron react with steam to form the metal oxide and hydrogen. 3Fe(s) + 4H₂O(g) → Fe3O4(s) + 4H₂(g) (ii) The reaction of calcium with water is exothermic but the heat evolved is not sufficient for the hydrogen to catch fire. Ca(s) + 2H₂O(l) → Ca(OH) ₂ (aq) + H₂ (g) Calcium starts floating because tRead more
(i) Iron react with steam to form the metal oxide and hydrogen.
3Fe(s) + 4H₂O(g) → Fe3O4(s) + 4H₂(g)
(ii) The reaction of calcium with water is exothermic but the heat evolved is not sufficient for the hydrogen to catch fire.
Ca(s) + 2H₂O(l) → Ca(OH) ₂ (aq) + H₂ (g)
Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.
Potassium react violently with cold water and its reaction is so violent and exothermic that the evolved hydrogen immediately catches fire.
2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g) + heat energy
Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-Read more
Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil.
Why do ionic compounds have high melting points?
Ionic compounds have high melting and boiling points. Because ionic compounds are formed by the attraction force of two opposite ions and a considerable amount of energy is required to break this strong inter-ionic attraction. For more answers visit to website: https://www.tiwariacademy.com/ncert-soRead more
Ionic compounds have high melting and boiling points. Because ionic compounds are formed by the attraction force of two opposite ions and a considerable amount of energy is required to break this strong inter-ionic attraction.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
What would you observe when zinc is added to a solution of iron(II) sulphate? Write the chemical reaction that takes place.
Zinc is more reactive than Iron. When Zn is added to Iron (II) Sulphate, Zinc displaces Iron from its solutions and Zinc sulphate is formed. Zn(s) + FeSO₄(aq) → ZnSO₄(aq) + Cu(s) For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
Zinc is more reactive than Iron. When Zn is added to Iron (II) Sulphate, Zinc displaces Iron from its solutions and Zinc sulphate is formed.
Zn(s) + FeSO₄(aq) → ZnSO₄(aq) + Cu(s)
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4.
When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas Metal + Dilute acid → Salt + Hydrogen Reaction between Iron and H₂SO₄ For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas
Metal + Dilute acid → Salt + Hydrogen
Reaction between Iron and H₂SO₄
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
Write equations for the reactions of (i) iron with steam (ii) calcium and potassium with water.
(i) Iron react with steam to form the metal oxide and hydrogen. 3Fe(s) + 4H₂O(g) → Fe3O4(s) + 4H₂(g) (ii) The reaction of calcium with water is exothermic but the heat evolved is not sufficient for the hydrogen to catch fire. Ca(s) + 2H₂O(l) → Ca(OH) ₂ (aq) + H₂ (g) Calcium starts floating because tRead more
(i) Iron react with steam to form the metal oxide and hydrogen.
3Fe(s) + 4H₂O(g) → Fe3O4(s) + 4H₂(g)
(ii) The reaction of calcium with water is exothermic but the heat evolved is not sufficient for the hydrogen to catch fire.
Ca(s) + 2H₂O(l) → Ca(OH) ₂ (aq) + H₂ (g)
Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal.
Potassium react violently with cold water and its reaction is so violent and exothermic that the evolved hydrogen immediately catches fire.
2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g) + heat energy
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/
Why is sodium kept immersed in kerosene oil?
Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-Read more
Metals such as potassium and sodium react so vigorously that they catch fire if kept in the open. Hence, to protect them and to prevent accidental fires, they are kept immersed in kerosene oil.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-3/