1. A crystalline solid possess which one of the following property?

2. The number and type of bonds between two carbon atoms in CaC₂ are

3. In the Dumas method, the nitrogen present in organic compound gets converted to

4. 0.0833mol of carbohydrate of empirical formula CH₂O contain 1 g of hydrogen. The molecular formula of the carbohydrate is

5. Which of the following is an electrophile?

6. If there is no rotation of plane polarized light by a compound in a specific solvent, thought to be chiral, it may mean that

7. The I.U.P.A.C. name of CH₃COCH(CH₃)₂ is

8. Inductive effect involves

9. 59 g of an amide obtained from a carboxylic acid, RCOOH, liberated 17 g of ammonia upon heating with alkali. The acid is

10. 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?

11. The principle involved in paper chromatography is

12. If 0.228 g of silver salt of dibasic acid gave a residue of 0.162 g of silver on ignition then molecular weight of the acid is

13. Insulin contains 3.4% sulphur. The minimum molecular weight of insulin is

14. The I.U.P.A.C. name of

15. The reaction

16. Which one of the following conformations of cyclohexane is chiral?

17. Which of the following behaves both as a nucleophile and as an electrophile?

18. The I.U.P.A.C. name of CH₃ – CH = CH COO C₂H₅ is

19. CH₃CH₂Cl undergoes homolytic fission to produce

20. Which element is estimated by Carius method