Organic Chemistry Some Basic Principles and Techniques - Online Test
Q1. The organic compound given below is one of the four options given below. Choose the most appropriate one.
Answer : Option A
Explaination / Solution:
this is aliphatic heterocyclic compound.
Q2. In organic compounds, when homolytic cleavage takes place, one of the electrons of the shared pair in a covalent bond goes with each of the bonded atoms. This results in the formation of
Answer : Option D
Explaination / Solution:
free radicals are formed by hemolytic cleavage.
Q3.
The following compounds are called:
Answer : Option C
Explaination / Solution:
they are aromatic heterocyclic compounds (furan, thiophene and pyridinr respectively).
Q4. In which C-C bond of the inductive effect is expected to be the least?
Answer : Option C
Explaination / Solution:
As distance increases inductive effect also decreases.
Q5. To separate mixtures into their components, and also to test the purity of ompounds, the popularly used technique is :
Answer : Option A
Explaination / Solution:
Chromatography is used.
Q6. The elements present in an organic compound are converted from covalent form into the ionic form by fusing the compound with sodium metal. This test is called
Answer : Option A
Explaination / Solution:
to covert covalent form to ionic form sodium fusion test is done this is lassaignes test.
Q7. The technique that is extensively used to separate mixtures into their components, purify compounds and also to test the purity of compounds is
Answer : Option A
Explaination / Solution:
Chromatography is used to separate mixtures of substances into their components. All forms of chromatography work on the same principle. They all have a stationary phase (a solid, or a liquid supported on a solid) and a mobile phase (a liquid or a gas).
Q8. Aniline is separated from aniline-water mixture using following technique:
Answer : Option B
Explaination / Solution:
Steam distillation is a special type of distillation(separation process) for temperature sensitive materials like natural aromatic compounds.It was a popular laboratory method for purification of organic compounds..
Q9.
Sodium cyanide, sulphide and halide,( -CN, -S and -H, coming from organic compound) so formed on sodium fusion are extracted from the fused mass by boiling it with distilled water. This is called
Answer : Option A
Explaination / Solution:
This is lassaignes test.
Q10. Geometrical isomers and Optical isomers are:
Answer : Option C
Explaination / Solution:
They are stereoisomers as they differ in the orientation of atoms in space.
