(i) is a (ii) is a (iii) is b
Match the intermediates given in Column I with their probable structure in
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Exercise 1
If a liquid compound decomposes at its boiling point, which method(s) can you choose for its purification. It is known that the compound is stable at low pressure, steam volatile and insoluble in water.
Because the liquid component decomposes near its boiling point, indicating that it is heat-sensitive, we purify it using "Steam distillation." For temperature-sensitive materials, this is done.
Which of the following compounds contain all the carbon atoms in the same hybridisation state? (i) H—C ≡ C—C ≡ C—H (ii) CH3—C ≡ C—CH3 (iii) CH2 = C = CH2 (iv) CH2 = CH—CH = CH2
The correct answers are I and (iv).
Ionic species are stabilised by the dispersal of charge. Which of the following carboxylate ion is the most stable?
Option IV is the correct answer.
During the 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? (i) Column chromatography (ii) Solvent extraction (iii) Distillation (iv) Thin-layer chromatography
Option IV is the correct answer.
Electronegativity of carbon atoms depends upon their state of hybridisation. In which of the following compounds, the carbon marked with an asterisk is most electronegative? (i) CH3 – CH2 – *CH2 –CH3 (ii) CH3 – *CH = CH – CH3 (iii) CH3 – CH2 – C ≡ *CH (iv) CH3 – CH2 – CH = *CH2
Option (iii) is the correct answer.