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Refer to above Figure. Beha took two test tubes, labelled them as A and B. Then she took about 0.5 g of sodium carbonate \((Na_2CO_3)\) in test tube A and about 0.5 g of sodium hydrogencarbonate \((NaHCO_3)\)in test tube _. She added about x mY of dilute HCl to both the test tubes.1. Which gas is evolved when HCl is passed through test tube A?(i) Oxygen(ii) Carbon dioxide(iii) Nitrogen(iv) Carbon monoxide2. Which gas is evolved when HCl is passed through test tube B ?(i) Carbon dioxide(ii) Nitrogen(iii)Carbon monoxide(iv)Oxygen3. On passing the carbon dioxide gas evolved through lime water, then lime water-(i) Turns greenish(ii) Turns yellow(iii) Turns milky(iv) No change4. All metal carbonates and hydrogencarbonates react with acids to give a corresponding ______(i) Salts (ii) Carbon dioxide(iii) Water(iv) All of these5. What are the different forms of calcium carbonate?(i) Limestone(ii) Chalk(iii) Marble(iv) All of these |
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Answer» 1. (ii) Carbon dioxide 2. (i) Carbon dioxide 3. (iii) Turns milky 4. (iv) All of these 5. (iv) All of these |
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