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2. Hydrogen is the gas liberated - H₂
Metal + Acid (dil) → Salt + H₂
3. Thermal power plants are set up near coal or oil fields.
Because to generate power, there are needs of transporting bulky amount of coal or oil ,so its better to have plants near the coal or oil fields.
4. We use copper and aluminium wires for transmission of electric current.
Because these metals have a higher conductivity than others, where all metals are good conductors.
5. (i) 2ZnS + 3O₂ + Heat → 2ZnO + 2SO₂
(ii) ZnCO₃ + Heat → ZnO + CO₂
:) Hope this Helps !!!
Metal + Acid (dil) → Salt + H₂
3. Thermal power plants are set up near coal or oil fields.
Because to generate power, there are needs of transporting bulky amount of coal or oil ,so its better to have plants near the coal or oil fields.
4. We use copper and aluminium wires for transmission of electric current.
Because these metals have a higher conductivity than others, where all metals are good conductors.
5. (i) 2ZnS + 3O₂ + Heat → 2ZnO + 2SO₂
(ii) ZnCO₃ + Heat → ZnO + CO₂
:) Hope this Helps !!!
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