This document contains an unsolved chemistry past paper from 1994 containing 15 multiple choice or fill-in-the-blank questions. The questions cover topics such as the products of hydrolysis reactions, freezing point depression constants, types of chemical bonding including sigma bonding and delocalization, electronic configurations, types of magnetism exhibited by ions, bond dissociation energies, carbon allotropes, reaction rates, structural properties influencing solubility, IUPAC naming, and determining whether statements are true or false with explanations.

1. IIT JEE -Past papersCHEMISTRY- UNSOLVED PAPER - 1994

2. SECTION – IFill in the blanks .

3. 01ProblemThe hydrolysis trialkylchlorosilane, yields_______________

4. Problem 02Given that is the depression in freezing point of the solvent in a solution of a non-volatile solute of modality, m, the quantity is equal to ______________.

5. Problem03The kind of delocalisation involving sigma bond orbitals is called _____________.

6. Problem04The outermost electronic configuration of Cr is ____________.

7. Problem05The two types of bonds present in are covalent and _______________

8. Problem06For a given reversible reaction, at a fixed temperature equilibrium constants and are related by ________

9. Problem07The type of magnetism exhibited by ion is___________

10. Problem08The bond dissociation energy needed to form the benzyl radical from toluene is _____________ than the formation of the methyl radical from methane.

11. Problem09One recently discovered allotrope of carbon is commonly known is ____________.

12. Problem10For the reaction under certain conditions of temperature and partial pressure of the reactants. The rate of formation of is 0.001 kg . The rate of conversion of H2 under the same conditions is _______________kg

13. Problem11The high melting point and insolubility in organic solvents of sulphanilic acid are due to its ________________ structure.

14. Problem12The compound , which shows superconductivity, has copper in oxidation sate __________. Assume that the rare earth element yttrium is in its usual +3 oxidation state.

15. Problem13Solubility of iodine in water is greatly increased by the addition of iodide ions because of the formation of ____________.

16. Problem14The IUPAC name of is _________.

17. Problem15The IUPAC name of succinct acid is ________________

18. SECTION – III

19. Problem01Both S and E are true, and E is the correct explanation of S Both S and E are true, but E is the correct explanation of SS is true but E is false.S is false but E is true.

20. FOR SOLUTION VISIT WWW.VASISTA.NET