Uses of Ethene and Ethyne

Q. Give three uses of ethene.

Q. Write the three uses of ethyne.

Q. Write equations to show what happens when ethyne gas reacts with
(i) bromine water
(ii) excess of hydrochloric acid.

Q.

Is rubbing alcohol and isopropyl alcohol the same?

Q.

Bakelite is formed by polymerisation between

1. acrylonitrile molecules

2. tetrafluoro ethene molecules

3. phenol and formaldehyde molecules

4. urea and formaldehyde molecules

Q. Why is oxyacetylene flame used for welding purposes?

Q.

Name three compounds formed by ethylene and give one use of each compound.

Q.

Differentiate between oxy-hydrogen flame and oxy-acetylene flame?

Q.

26. Give two uses of: Chlorine.

Q.

Name an organic compound which is :
(a) used for illuminating country houses,
(b) used for making a household plastic material.
(c) called 'wood spirit',
(d) poisonous and contain OH group,
(e) consumed as a drink,
(f) made from water gas,
(g) solvent for ethanol.

Q. For artificial ripening of fruits, _______ gas is used.

1. methane
2. acetylene
3. butane
4. helium

Q. Write the industrial name of ethyne with its uses.

Q. Write the industrial name and two uses of ethyne.

Q. Oxyacetylene flame is used in/for:

1. illumination
2. welding
3. hydrogenation
4. None of the above

Q. The light producing gas in the lamp of the hawkers is:

1. butane
2. ethylene
3. acetylene
4. methane

Q. Where is toluene used?

Q. Which gas is used for illumination in hawker's lamp?

1. Methane
2. Ethyne
3. Butane
4. Acetylene

Q. Name three compounds formed by ethylene and give the use of these compounds.

Q. ____________ gas is used in welding.

1. Acetylene
2. Acetelene
3. Acetalene
4. Ethelene

Q. Which alkane can be used for preparation of Toluene by aromatization ?

Q. In which of the following sodium carbonate is not used?

1. In tyre making
2. In baking of bread
3. In soap making
4. In paper making

Q.

Which of the following is used in maunfaturing PVC and oxy-ethylene torch?

1. ethyne

2. ethylene

3. ethane

4. di-ethyl-ether

Q. Which of the following gas is known as illuminating gas?

1. Ethene
2. Ethane
3. Ethyne
4. Propane

Q. Ethyne is used as a starting material in making:

1. acetic acid and ethyle alcohol
2. synthetic tubber and synthetic fibres
3. all of the above
4. westron and plastics