What would you see if damp blue litmus paper is placed into chlorine gas?
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Video answer: Chemical tests: chlorine gas
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To test for chlorine, use damp blue litmus paper. The blue colour will turn to red and then to white. Chlorine gas reacts with water to produce an acidic solution which is also an effective bleach… The acidic solution formed on the damp litmus paper turns the indicator red.
Video answer: Dr nicolson tests chlorine gas with litmus paper and a lit splint.
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(b) Describe what you would see if damp, blue litmus paper is placed into chlorine gas. (2)..... (c) Chlorine exists as diatomic molecules. In a molecule, two chlorine atoms are joined by a covalent bond. (i) Describe what is meant by a covalent bond. (2).....
If you observe carefully when the BLUE litmus goes in the chlorine, you MAY notice that just before the bleaching process happens, the blue litmus turns pink/red. This happens because before bleaching can occur, chlorine gas needs to dissolve in the water absorbed by the paper.
To test for chlorine, use damp blue litmus paper. The blue colour will turn to red and then to white. Chlorine gas reacts with water to produce an acidic solution which is also an effective bleach....
Sulphur becomes sulphur dioxide when sulphur is burned in a blue flame of oxygen gas. Sulphur dioxide reacts to the addition of water, becoming acidic, that is an acid solution. It is then correctly names sulphuric acid. It will change the blue litmus paper to red, but if the litmus paper is red to begin with, the colour does not change.
blue litmus, usually used to test for acids The test for chlorine can use either type of litmus paper, but blue litmus paper is used most commonly. The litmus paper must be damp - the water...
Chlorine water on standing initially gives an amount of hypochlorous acid HOCl. So, the color of the litmus paper will change from blue to red. After some time HCland HClO3​will be produced and both of them are acidic. Cl2​+H2​O⟶HClO3​+HClÂ
Cl2 (g) + H2O (l) --> HClO (aq) + HCl (aq) HCl bleaches the litmus blue, however HClO bleaches the litmus white. HCl turns the litmus red - it doesn't bleach it red. The word 'bleach' is used to show that the colour is being lost, i.e. it is turning white. HOCl is the bleach in the reaction.
When chlorine comes in contact with litmus paper it bleaches it, so it turns white. Before it turns white, though, it can turn pink because of the acids formed when chlorine reacts with water. Cl2...
Chlorine has a characteristic sharp, choking smell. It also makes damp blue litmus paper turn red, and then bleaches it white. Chlorine makes damp starch-iodide paper turn blue-black.
(ii) Give the electronic configuration of this chlorine atom. (1)..... (b) Describe what you would see if damp, blue litmus paper is placed into chlorine gas. (2)..... (c) Chlorine exists as diatomic molecules. In a molecule, two chlorine atoms are joined by a covalent bond. (i) Describe what is meant by a covalent bond. (2)
Video answer: Qa
