Chemistry-Paper-1-Important Questions

advertisement
Padmasri Dr B V Raju Institute of Computer Education
Chemistry Paper-I
Question Bank
UNIT- 1 (Inorganic Chemistry)
Essay Questions
1) Discuss the Structure, preparation & properties of Borazole?
2) What are Inter halogen compounds? How they are prepared. Discuss the structures of AX, AX3, AX5
& AX7 types?
3) Write the preparation & applications of Silicones?
4) What are Oxides? How they are classified?
5) What are Organo Metallic compounds? Write the applications of alkyl Lithium & Grignard reagent?
Short Answer Questions
1)
2)
3)
4)
5)
6)
Discuss the Diagonal relationship between Be & Al?
Discuss the Diagonal relationship between Li & Mg?
Write a note on graphitic compounds?
Write a note on Phosphazenes?
Write the synthesis & structure of Diborane?
Write the classification of organo metallic compounds?
Very Short Answer Questions
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
Reaction of Grignard reagent with CO2.
Pseudo halogens.
Hydrazine.
Write the structures of Higher Boranes?
Hydroxylamine.
Explain the Lewis acid character of Borantrihalides.
Write a reason for “Why BH3 is not existed as BF3”?
Super oxides.
Peroxides.
What is Grignard reagent?
What is Inorganic benzene?
Banana bond Or Tou (τ) Bond.
Department of Chemistry, B V R I C E
Page 1
Padmasri Dr B V Raju Institute of Computer Education
Chemistry Paper-I
Question Bank
UNIT-II (Organic Chemistry)
Essay Questions
1)
2)
3)
4)
5)
6)
7)
8)
Explain the types of organic reactions?
Explain the following a)inductive effect b) mesomeric effect c) hyper conjugation
Write the preparation and properties of alkanes.
Write the preparation and properties of alkenes.
Write the preparation and properties of alkynes.
What is aromaticity? Give the mechanism of nitration, chlorination, sulphonation of benzene.
Explain Huckel’s rule? Give the mechanism of friedelcraft alkylation & acylation of benzene.
What are alkadiens? How they are classified? Explain the mechanism of 1,2 & 1,4 addition of 1,3
butadiene.
9) What is orientation effect? Explain orientation effect in monosubstituted benzene
Short Answer Questions
1)
2)
3)
4)
5)
6)
7)
Explain Markownikoff’s & Antimarkwnikoff’s rules?
Explain the stability of cyclo alkanes by Bayer’s strain theory?
Write a note on conformations of cyclohexane.
What is hybridization? Explain sp3, sp2, sp hybridization?
Write any two preparation and properties of cycloalkanes.
Write any two preparation and properties of naphthalene.
What is bond fission? How they are classified?
Very Short Answer Questions
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
Electrophiles and Nucleophiles.
Homolytic cleavage and heterolytic cleavage.
Stability of carbocations.
Basicity of Amines.
Acidity of phenols.
Paranitrophenol is more acidic than phenol. Why?
Wurtz reaction.
Kolbe’s electrolysis.
Corey-house reaction.
Lindlar’s catalyst.
Pitzer’s strain theory.
Reactivity of naphthalene.
Department of Chemistry, B V R I C E
Page 2
Padmasri Dr B V Raju Institute of Computer Education
Chemistry Paper-I
Question Bank
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
Acidity of acetylene.
What is resonance?
Reaction intermediates.
Benzenoid and non benzenoid compounds.
Resonance structures of Anthracene.
Resonance structures of benzene.
Sachse and Mohr’s theory of cycloalkanes.
Saytzeff’s rule.
Diel’s-alder reaction.
Write the structures of following compounds a) 2-Amino, 4-hydroxy hexanoicacid b) 4(1methylpropyl)nonane
UNIT-III (PHYSICAL CHEMISTRY)
Essay Questions
1) What are real gases? How they are deviated from ideal behavior? Derive the vanderwaal’s
equation?
2) What is a critical phenomenon? Explain this by isotherms of CO2?
3) What is Joule Thomson effect? Explain the liquification of gases of linde’s and Claude’s method?
4) Explain crystal defects?
5) Define C.S.T. and explain with examples of lower, upper, lower-upper C.S.T.
6) Define Rauolt’s law. Classify the real solutions and ideal solutions basing on Rauolt’s law.
7) Define Nernst distribution law and mention its applications.
8) Write briefly note on a) Brownian moment b) Electrophoresis
c) Electro osmosis d) Tyndall effect.
9) What azeotropes? How they are classified?
10) Derive Langmuir’s adsorption isotherm. Write its limitations.
11) Derive Freuindlich’s adsorption isotherm.
Short Answer Questions
1) Define Pc, Vc ,Tc. Write the relation between vanderwaal’s constant and critical constant.
2) Derive Brag’s equation. How NaCl is determined by Brag’s rotating crystal method (or ) Powdered
method.
3) Explain Band theory of semiconductors.
4) Explain about Henry’s law.
5) Write the classification of liquid crystals.
Department of Chemistry, B V R I C E
Page 3
Padmasri Dr B V Raju Institute of Computer Education
Chemistry Paper-I
Question Bank
6) Explain about steam distillation.
7) Explain about fractional distillation.
8) Write note on Zeta potential.
9) Write the methods of preparation of colloids.
10) What is coagulation? How can it be prevented?
11) Explain about Emulsions.
12) Write the difference between physical and chemical adsorptions.
Very Short Answer Questions
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Joule Thomson effect
Applications of liquid crystals.
Miller and Weis indices.
Super conductivity.
Rauolt’s law.
C.S.T
Azeotropes.
Gold number.
Miscells.
Zeta potential
UNIT-IV (GENERAL CHEMISTRY)
Essay Questions
1) State and explain Schrodinger’s wave equation. Explanation of significance of Eigen function.
2) Explain the following a) Compton effect b) Heisenberg’s uncertainty principle
c) Debroglie’s hypothesis.
3) Explain LCAO theory. Draw the M.O. diagrams, bond order & magnetic
Character of N2, O2, C2, &NO molecules.
4) Explain the main postulates of M.O theory and draw the M.O diagram, bond order & magnetic
property of B2, O2-, & CO.
5) Explain the following a)D,L-configuration b) R,S- Nomenclature
c) E, Z- Nomenclature.
6) a) assign the R,S – Nomenclature of Lactic acid, Alanine, Tartaric acid &
Mandelicacid.
b) Write a note on optical isomerism.
Department of Chemistry, B V R I C E
Page 4
Padmasri Dr B V Raju Institute of Computer Education
Chemistry Paper-I
Question Bank
Short Answer Questions
1) Write a note on quantum numbers.
2) Explain salient features of VB theory and is applied to BrF5, Ni(CO) 4.
3) What is hybridization? Write SP, SP2, SP3, SP3d, SP3d2 hybridization and give one example for each.
4) Explain conformational isomerism of n-butane & ethane?
5) Explain Cohn-Ingold Prelog nomenclature?
6) What is raceimic mixture? Explain the methods of resolution raceimic mixture?
7) Write a note on common ion effect & solubility product?
8) Write a note on Particle in one dimensional box?
9) Give the Significance of ψ & ψ2 .
10) Explain Plank’s radiation law?
Very Short Answer Questions
1) Photo electric effect.
2) Schrodinger wave equation.
3) Principle quantum number.
4) Structure of XeF2 molecule.
5) Black body radiation.
6) Dipole moment.
7) Bond order.
8) Bonding, anti bonding & non-bonding orbitals.
9) Geometrical isomerism.
10) Enantiomers & diastereomers.
11) Define conformational & configurational isomerism
12) Borax-Bead test.
13) Nasser’s reagent.
14) What is brown ring test?
Department of Chemistry, B V R I C E
Page 5
Download