HARD
11th CBSE
IMPORTANT
Earn 100
Benzoic acid is an organic compound. Its crude sample can be purified by crystallisation from hot water. What characteristic differences in the properties of benzoic acid and the impurity make this process of purification suitable?
Important Questions on Organic Chemistry – Some Basic Principles and Techniques
MEDIUM
11th CBSE
IMPORTANT
Which of the following is the correct IUPAC name?
HARD
11th CBSE
IMPORTANT
The IUPAC name for
is _____.EASY
11th CBSE
IMPORTANT
In which of the following, functional group isomerism is not possible?
MEDIUM
11th CBSE
IMPORTANT
During hearing of a court case, the judge suspected that some changes in the documents had been carried out. He asked the forensic department to check the ink used at two different places. According to you which technique can give the best results?
HARD
11th CBSE
IMPORTANT
Two liquids can be separated by the method of fractional distillation. The boiling point of a liquid is less than the boiling point of a liquid . Which of the liquids do you expect to come out first in the distillate? Explain.
HARD
11th CBSE
IMPORTANT
You have a mixture of three liquids . There is a large difference in the boiling points of and rest of the two liquids i.e., . The boiling point of liquids are quite close. Liquid boils at a higher temperature than and boiling point of is lower than . How will you separate the components of the mixture? Draw a diagram showing set up of the apparatus for the process.
HARD
11th CBSE
IMPORTANT
Draw a diagram of bubble plate type fractionating column. When do we require such type of column for separating two liquids? Explain the principle involved in the separation of components of a mixture of liquids by using a fractionating column. What industrial applications does this process have?
HARD
11th CBSE
IMPORTANT
A liquid with high boiling point decomposes on simple distillation but it can be steam distilled for its purification. Explain how is it possible?
