Advertisements
Advertisements
Write a balanced chemical equation for the following:
Water is added to calcium carbide.
Concept: undefined >> undefined
Give reason for the following :
Methane does not undergo addition reaction, but ethane does
Concept: undefined >> undefined
Advertisements
Give reason for the following :
Ethyne is more reactive than ethane
Concept: undefined >> undefined
Give reason for the following :
Hydrocarbons are excellent fuels
Concept: undefined >> undefined
Give balanced equation for the laboratory preparations of the following organic compound:
A saturated hydrocarbon from iodomethene
Concept: undefined >> undefined
Give balanced equation for the laboratory preparations of the following organic compound:
An unsaturated hydrocarbon from an alcohol
Concept: undefined >> undefined
Give balanced equation for the laboratory preparations of the following organic compound:
An unsaturated hydrocarbon from calcium carbide
Concept: undefined >> undefined
Give balanced equation for the laboratory preparations of the following organic compound:
An alcohol from ethyl bromide
Concept: undefined >> undefined
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) |
Concept: undefined >> undefined
Identify the gas evolved when sodium propionate is heated with sodalime
Concept: undefined >> undefined
Give a chemical term for a reaction in which hydrogen of a alkane is replaced by a halogen
Concept: undefined >> undefined
Give a chemical test to distinguish between ethane gas and ethane gas.
Concept: undefined >> undefined
Using the structural formula, identify the functional group by circling it:
Dimethyl ether
Concept: undefined >> undefined
Using the structural formula, identify the functional group by circling it:
Propanone
Concept: undefined >> undefined
State the observation
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
Concept: undefined >> undefined
Name the following:
Process by which ethane is obtained from ethene.
Concept: undefined >> undefined
Name the following:
A hydrocarbon which contributes towards the greenhouse effect.
Concept: undefined >> undefined
Name the following:
Distinctive reaction that takes place when ethanol is treated with acetic acid.
Concept: undefined >> undefined
Name the following:
The property of elements by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure.
Concept: undefined >> undefined
Give balanced chemical equations for the following conversion :
Ethanoic acid to ethyl ethanote
Concept: undefined >> undefined
