Question
Unsaturated hydrocarbons contain multiple bonds between the two C-atoms and show addition reactions. Give the test to distinguish ethane from ethene.
✓
Answer
Distinction between ethane and ethene can be done with the help of bromine water test. Whereas ethene dicolourises the yellow colour of bromine water, ethane does not.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How does DNA help in defining evolutionary relationship?
A resistor of 8 ohms is connected in parallel with another resistor X. The resultant resistance of the combination is 4.8 ohms. What is the value of the resistor X?
What is a reflex action? Explain with the help of an example.
An object of height 4.25mm is placed at a distance of 10cm from a convex lens of power +5D. Find:
- Focal length of the lens, and
- Size of the image.
Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet gets deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic field lines concept.
Name the type of respiration in which the end products are:
a. $C _2 H _3 OH$ and $CO _2$.
b. $CO _2$ and $H _2 O$.
c. Lactic acid.
Give one example of each case where such a respiration can occur.
→a. $C _2 H _3 OH$ and $CO _2$.
b. $CO _2$ and $H _2 O$.
c. Lactic acid.
Give one example of each case where such a respiration can occur.
When a metal X is treated with cold water, it gives a basic salt Y with molecular formula XOH (Molecular mass = 40) and liberates a gas Z which easily catches fire. Identify X, Y and Z and also write the reaction involved.
An ester has the molecular formula $C _4 H _8 O _2$. Write its structural formula. What happens when this ester is heated in the presence of sodium hydroxide solution? Write the balanced chemical equation for the reaction and name the products. What is a saponification reaction?
→Intake of small quantity of methanol can be lethal. Comment.
Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.