chemistry paper
guess paper
1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g)
2. What is peptisation?
3. Write Reimer Tiemann reaction.
4. Why is CO stronger ligand that Cl-.
5. Write structure of 2-(2-Bromophenyl)butane.
6. Complete the reaction C6H6+R COCl
7. Why pentahalides more covalent than trihalides?
8. What is difference between nucleoside and nucleotide?
9. Explain the following-
(a) Gattermann Koch reaction (b) HVZ reaction 10. How will you distinguish between the following. (a) Pentan-2-one and pentan-3-one (b) Aniline and N-Methylaniline 11. What is crystal field splitting energy?How does the magnitude of splitting decide the actual configuration of d- orbitals in an octahedral field for a coordination entity. 12. You work in a large university physical plant department which overseas the day to day operation of the Building on campus. The university currently maintain 14 days scale air conditioning units that still use CFC as refrigerant. These units were installed well before 1996 ban on CFC production A member of the budget committee comes to you before she is concerned about the potential cost of replacing so many units. She ask these questions.
(a) Since a cooling unit is sealed why does the continued use of CFC pose any risk to the environment?
(b) Can’t the university simply buy a different refrigerant to replace the CFC’s and use. It in existing unit?
(c) What would be the concern associated with such refrigerant replaced? 13. Write the formula and the structure of noble gas species which are isostructural with
(a) ICl4- (b) BrO3- 14. Explain
1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g)
2. What is peptisation?
3. Write Reimer Tiemann reaction.
4. Why is CO stronger ligand that Cl-.
5. Write structure of 2-(2-Bromophenyl)butane.
6. Complete the reaction C6H6+R COCl
7. Why pentahalides more covalent than trihalides?
8. What is difference between nucleoside and nucleotide?
9. Explain the following-
(a) Gattermann Koch reaction (b) HVZ reaction 10. How will you distinguish between the following. (a) Pentan-2-one and pentan-3-one (b) Aniline and N-Methylaniline 11. What is crystal field splitting energy?How does the magnitude of splitting decide the actual configuration of d- orbitals in an octahedral field for a coordination entity. 12. You work in a large university physical plant department which overseas the day to day operation of the Building on campus. The university currently maintain 14 days scale air conditioning units that still use CFC as refrigerant. These units were installed well before 1996 ban on CFC production A member of the budget committee comes to you before she is concerned about the potential cost of replacing so many units. She ask these questions.
(a) Since a cooling unit is sealed why does the continued use of CFC pose any risk to the environment?
(b) Can’t the university simply buy a different refrigerant to replace the CFC’s and use. It in existing unit?
(c) What would be the concern associated with such refrigerant replaced? 13. Write the formula and the structure of noble gas species which are isostructural with
(a) ICl4- (b) BrO3- 14. Explain