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Write the equation for the reaction taking place between 1, 2-dibromoethane and alcoholic potassium hydroxide.
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Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
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Write a balanced chemical equation for the following:
A mixture of sodalime and sodium acetate is heated.
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Write a balanced chemical equation for the following:
Water is added to calcium carbide.
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Give reason for the following :
Methane does not undergo addition reaction, but ethane does
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Give reason for the following :
Ethyne is more reactive than ethane
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Give reason for the following :
Hydrocarbons are excellent fuels
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Give balanced equation for the laboratory preparations of the following organic compound:
A saturated hydrocarbon from iodomethane
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Give balanced equation for the laboratory preparations of the following organic compound:
An unsaturated hydrocarbon from an alcohol
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Give balanced equation for the laboratory preparations of the following organic compound:
An unsaturated hydrocarbon from calcium carbide
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Give balanced equation for the laboratory preparations of the following organic compound:
An alcohol from ethyl bromide
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Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of copper (II) sulphate, zinc nitrate, lead nitrate, calcium chloride, and iron (III) sulphate. Copy the following table and write the colour of the precipitate in (i) to (v) and the nature of the precipitate (soluble or insoluble) in (vi) to (x).
| Aqueous salt solution | Colour of precipitate when NaOH is added in a small quantity | Nature of precipitate (soluble or insoluble) when NaOH is added in excess |
| Copper (II) sulphate | (i) | (vi) |
| Zinc nitrate | (ii) | (vii) |
| Lead nitrate | (iii) | (viii) |
| Calcium chloride | (iv) | (ix) |
| Iron (III) Sulphate | (v) | (x) |
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Identify the gas evolved when sodium propionate is heated with sodalime
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Give a chemical term for a reaction in which hydrogen of a alkane is replaced by a halogen
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Give a chemical test to distinguish between ethane gas and ethane gas.
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Using the structural formula, identify the functional group by circling it:
Dimethyl ether
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Using the structural formula, identify the functional group by circling it:
Propanone
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State the observation
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
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Name the following:
Process by which ethane is obtained from ethene.
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Name the following:
A hydrocarbon which contributes towards the greenhouse effect.
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