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Bromine solution is decolourised by (et...

Bromine solution is decolourised by ___ (ethene only/ethyne only/both entences ethene and ethyne)

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To determine which compounds decolorize bromine solution, we need to analyze the properties of ethene and ethyne. ### Step-by-Step Solution: 1. **Understanding Bromine Decolorization**: - Bromine solution is brown in color due to the presence of bromine molecules (Br2). When a compound reacts with bromine, it can cause the solution to lose its color, indicating a reaction has occurred. 2. **Identifying the Compounds**: ...
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Describe a method to distinguish ethane, ethene and ethyne.

From the list of the organic compounds ethanol, ethane, methanol, methane, ethyne and ethene, name a compound Which decolourises bromine solution in carbon tetrachloride.

How is ethyne converted to ethene

From the list of the organic compounds ethanol, ethane, methanol, methane, ethyne and ethene, name a compound Formed by the dehydration of ethanol by concentrated sulphuric acid.

From the list of the organic compounds ethanol, ethane, methanol, methane, ethyne and ethene, name a compound Which has vapour density 14 and turns alkaline potassium permanganate colourless.

From the list of the organic compounds ethanol, ethane, methanol, methane, ethyne and ethane, name a compound Which will give red precipitate with ammoniacal copper (I) chloride solution.

Select from the letters A to G the correct answer corresponding to the statements from 1 to 5: A: Ammoniacal CuCl_2 , B: Trichloromethane, C: Trichloroethane, D: Bromine soln., E: Aqueous KOH F: Ethene, G: Sodalime, H: Ethanol, I: Ethyne. 1. The organic compound which forms carbon tetrachloride on reaction with chlorine. 2. The reagent which can distinguish between ethene and ethyne. 3. The substance which reacts with bromoethane to give ethanol. 4. The substance which gives bromoethane on reaction with hydrogen bromide. 5. The substance which reacts with acetic acid to give CH_3COOC_2H_5 .

Ethene decolourises_____ water. (bromine/distilled)

Give the decreasing order of C-H bond length in ethane, ethene and ethyne and why?

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ICSE-ORGANIC CHEMISTRY -QUESTIONS FOR PRACTICE PAPER ON EXAMINATION PATTERN (FILL IN THE BLANKS )
  1. There is a large number of carbon compounds due to

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  2. A hydrocarbon involving only single covalent bonds is called (unsatura...

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  3. The reaction between ethanol and ethanoic acid in the presence of conc...

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  4. In the oxidation of ethanol with acidified potassium dichromate, the f...

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  5. Ethyne gives a white precipitate with ammoniacal solution of . (AgNO3/...

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  6. Bromine solution is decolourised by (ethene only/ethyne only/both ent...

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  7. The main constituent of vinegar is (ethanol/ethanoic acid)

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  8. Formation of ethanol from ethene is called(hydration/dehydration).

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  9. On heating a mixture of sodium propanoate and sodalime is formed (prop...

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  10. On heating ethanol with excess of concentrated sulphuric acid at 170^@...

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  11. On passing a mixture of ethane and oxygen through a hot copper tube is...

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  12. The catalyst used for conversion of ethene to ethane is commonly (nic...

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  13. When acetaldehyde is oxidised with acidified potassium dichromate, it ...

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  14. Ethanoic acid reacts with ethanol in the presence of concentrated H2 S...

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  15. The product formed when ethene gas reacts with water in the presence o...

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  16. The compound formed when ethene reacts with hydrogen is (CH4 , C2H6, ...

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