CHEMISTRY PUBLIC EXAM QUESTIONS 10. Write a note on Fischer tropsch synthesis
COLLECTION (Apr2023)
11. Describe the structure of diborane(Apr2023)
UNIT-1 12. Write Ethyl borate test. (Apr/2023)
1. Explain Zone refining process. (Mar/2020 & 13. Give one example for the following a)
Apr2023) icosagen
2. What is the role of limestone in the extraction b) chalcogen (June/2023)
of iron from its oxide Fe2O3? (Jun/2020) 14. Write a note on Hydroboration (June/2023) &
3. Which types of ores can be concentrated by (June/2024)
the froth floatation method ? Give two examples. 15. What are Silicates? (Mar/2024)
(Jun/2020 & Apr 2023) 16. How will you convert Boric acid to Boron
4. Explain the following terms with suitable nitride? (Mar/2024)
examples. a) Gangue b) Slag (Sept/2020)
5.What are the differences between Minerals and UNIT-3
Ores? (Sept/2020),(May/2022)&(Mar/2024) 1. How is bleaching powder prepared? (Mar/2020)
6. Explain Froth Floatation process . (Aug/2021) & (May/2022)
7. Write a note on the gravity separation method. 2. Why HF cannot be stored in glass bottles?
(May/2022) (Mar/2020)
8. Explain the Mond’s process of refining Nickel. 3. Write the molecular formula and draw the
(May/2022)&(June/2023) structure of sulphurous acid and Marshall’s acid.
9. Explain Acid leaching with an example. (Mar/2020)
(Sept/2022) 4. What type of hybridization is found in the
10. Explain the principle of electrolytic refining following ? (a) BrF (b) BrF5 (c) BrF3 (Jun/2020)
with an example. (Sept/2022) 5. Explain Deacon’s process for manufacture of
11. What are the limitations of the Ellingham Chlorine. (Jun/2020)
diagram? (June/2023) 12. Write about the 6. Sulphuric Acid is a dibasic acid. Prove it.
liquation process (June/2023) (Jun/2020)
13. What is Calcination (Mar/2024) 7. Give the uses of Helium (Sept/2020)&
14. What is the role of Silica in the extraction of (June/2023)
Copper? (Mar/2024) 15. What are the various 8. Write the balanced equation for the overall of
steps involved in extraction of pure metals from Chlorine with cold NaOH and hot NaOH.
their ores? (June/2024) (Sept/2020) 9. Write a short note on Holmes'
16. Explain the electro metallurgy of Aluminium signal. (Sept/2020)
(June/2024) 10. What are Interhalogen compounds ? Give
examples. (Aug/2021) , (May/2022) & (June/2024)
UNIT-2 11. Explain the bleaching action of Sulphur
1. There is only a marginal difference in decrease dioxide(SO2) . (Aug/2021)& (June/2023)
in ionization enthalpy from Aluminium to 12. Write any two uses of Helium . (Aug/2021)
Thallium – Explain Why? (Mar/2020) 13. What is the inert pair effect ? (May/2022)
2. What is catenation ? Write the conditions for 14. What are the uses of Oxygen ? (May/2022)
catenation property. (Mar/2020) & (Sept/2022) 15. Give the uses of Argon. (Sept/2022)
3. A hydride of 2nd period alkali metal (A) on 16. Write the property of Interhalogen
reaction with compound of Boron (B) in the compounds. (Sept/2022) 17. Find the oxidation
presence of ether to give a reducing agent (C) state of Halogen in the following compounds.i)
Identify A, B and C. (Jun/2020) OF2 ii) I2O4 (Apr/2023)
4. How is Potash alum prepared ? (Jun/2020) 18. Complete the following reaction
5. What are the factors responsible for the 1. P4 + NaOH + H2O
anomalous behavior of the first element of the 2. XeF6 + H2O
p-block ? (Sept/2020), (Aug/2021)&(June/2024) 3. Cu + Conc H2SO4 (Apr/2023)
6. What is Catenation ? (Sept/2020) 19. Sulphuric acid is a dehydrating agent. Give
7. Give the uses of Borax (Aug/2021) & example(June/2023) & (Mar/2024)
(June/2024) 20. Give the uses of Helium. (Mar/2024)
8. What are the uses of Boric acid ? 21. Give the uses of Sulphuric acid. (June/2024)
(May/2022),(Sept/2022)& (Mar/2024)
9. Write the uses of Silicones. (Apr2023)
, 22. Write the molecular formula and structural between double salts and coordination
formula for the following a) Phosphoric acid b) compounds. (Aug/2021)
Nitric acid (June/2024) 11. What are the limitations of VB theory ?
(Aug/2021) & (Sept/2022) 12. Based on the VB
Unit-4 theory, explain why [Ni(CN)4]2-is diamagnetic.
1. Classify the following elements into d-block (Aug/2021)
and f-block elements: i) Tungsten ii) Ruthenium 13. Define Coordination number. (May/2022)
iii) Promethium iv) Einsteinium (Mar/2020) 14. Write the following for the complex
2. Write the Chromyl Chloride Test. (Mar/2020) [Ag(NH3)2]+ (a) Ligand (b) Central metal ion (c)
3. What is Lanthanide or Lanthanoid contraction IUPAC name (May/2022)
? Explain its consequences. 15. Write the IUPAC ligand name for the following
(Jun/2020),(June/2023)& (Mar/2024) a) C2O42- b) H2O c) Cl- (Sept/2022)
4. What are Interstitial compounds ? Give an 16. Define the term central Atom in coordination
example (Sept/2020),(Aug/2021), (June/2023) compound. (Apr/2023)
&(June/2024) 17. For the complex, [Pt(NO2)(H2O)(NH2)2]Br
5. Which metal in the 3d series exhibits +1 identify the following
oxidation state most frequently and why ? 18. a) Central metal atom/ion b) Coordination
(Sept/2020) 6. Why do block elements exhibit number c) Oxidation number of central metal
variable oxidation states ? (Aug/2021) ion
7. Calculate the number of unpaired electrons in 19. Describe the nature of bonding in metallic
Ti3+, Mn2+ and calculate the spin only magnetic carbonyls. (Apr/2023)
moment . (Aug/2021) 20. Mention the oxidation state of the central
8. Which is more stable Fe3+ or Fe2+ ? Why ? metal ion, coordination number, nature of ligand
(May/2022)& (Mar/2024) for the complex K4[Mn(CN)6] (June/2023)
9. What are the properties of Interstitial 21. Draw all possible geometrical isomers of the
compounds ? (May/2022) complex [Co(en)2Cl2]+ and identify the optically
10. Write a note on Zeigler – Natta catalyst. Give active isomer. (June/2023)
its uses. (Sept/2022) 22. Give an example of Coordination Compounds
11. Compare Lanthanides and Actinides. used in Medicine and a Biologically important
(Sept/2022 &Apr2023) 12. Out of Lu(OH)3 and Coordination Compound. (Mar/2024)
La(OH)3 which is more basic and why? 23. What is linkage isomerism ? Explain with an
(June/2024) example (June/2024)
24. In an octahedral crystal field, draw the figure
Unit-5 to show splitting of d-orbitals (June/2024)
1. Write any two hydrate isomers of the complex
with the molecular formula CrCl3.6H2O. UNIT-6
(Mar/2020) 1. If the number of closed packed spheres is 6,
2. [Sc(H2O)6]3+ is colourless – Explain (Mar/2020) calculate the number of Octahedral voids and
3. Write the IUPAC name of the following : Tetrahedral voids generated. (Mar/2020)
(Mar/2020) 2. Write a note on Frenkel defect (Mar/2020 &
A) [Ag(NH3)2]+ B) [Co(NH3)5Cl]2+ Apr2023)
4. Calculate the magnetic moment and magnetic 3. Differentiate between crystalline solids and
property of [CoF6]3+(Mar/2020) amorphous solids.
5. Give the difference between double salts and (Jun/2020,(May/2022)&(June/2023)
coordination compounds. (Jun/2020)& (Mar/2024) 4. If the radius of the compound is between 0.155
6. In an octahedral crystal, draw the figure to – 0.255, find out the Coordination number and
show splitting of d-orbitals. (Jun/2020) structure of the compound. (Jun/2020)
7. Indicate the possible type of Isomerism for the 5. Difference between Isotropy and Anisotropy in
following complexes solids. (Sept/2020)
(A) [Co(en)3]3+ (B) [Pt(NH3)2Cl2]2+ (Jun/2020) 6. Explain Schottky defect. (Sept/2020 &Apr2023)
8. Mention the metal complexes and its metal 7. Define Unit cell .
ions are used in biological systems. (Sept/2020) (Aug/2021),(Sept/2022)&(June/2024)
9. Write the postulates of Werner’s Theory. 8. What is meant by the term ‘’Coordination
(Sept/2020) &. (May/2022) 10. Give the difference Number’’ ? What is the Coordination number of
atoms in a bcc structure ? (Aug/2021)
COLLECTION (Apr2023)
11. Describe the structure of diborane(Apr2023)
UNIT-1 12. Write Ethyl borate test. (Apr/2023)
1. Explain Zone refining process. (Mar/2020 & 13. Give one example for the following a)
Apr2023) icosagen
2. What is the role of limestone in the extraction b) chalcogen (June/2023)
of iron from its oxide Fe2O3? (Jun/2020) 14. Write a note on Hydroboration (June/2023) &
3. Which types of ores can be concentrated by (June/2024)
the froth floatation method ? Give two examples. 15. What are Silicates? (Mar/2024)
(Jun/2020 & Apr 2023) 16. How will you convert Boric acid to Boron
4. Explain the following terms with suitable nitride? (Mar/2024)
examples. a) Gangue b) Slag (Sept/2020)
5.What are the differences between Minerals and UNIT-3
Ores? (Sept/2020),(May/2022)&(Mar/2024) 1. How is bleaching powder prepared? (Mar/2020)
6. Explain Froth Floatation process . (Aug/2021) & (May/2022)
7. Write a note on the gravity separation method. 2. Why HF cannot be stored in glass bottles?
(May/2022) (Mar/2020)
8. Explain the Mond’s process of refining Nickel. 3. Write the molecular formula and draw the
(May/2022)&(June/2023) structure of sulphurous acid and Marshall’s acid.
9. Explain Acid leaching with an example. (Mar/2020)
(Sept/2022) 4. What type of hybridization is found in the
10. Explain the principle of electrolytic refining following ? (a) BrF (b) BrF5 (c) BrF3 (Jun/2020)
with an example. (Sept/2022) 5. Explain Deacon’s process for manufacture of
11. What are the limitations of the Ellingham Chlorine. (Jun/2020)
diagram? (June/2023) 12. Write about the 6. Sulphuric Acid is a dibasic acid. Prove it.
liquation process (June/2023) (Jun/2020)
13. What is Calcination (Mar/2024) 7. Give the uses of Helium (Sept/2020)&
14. What is the role of Silica in the extraction of (June/2023)
Copper? (Mar/2024) 15. What are the various 8. Write the balanced equation for the overall of
steps involved in extraction of pure metals from Chlorine with cold NaOH and hot NaOH.
their ores? (June/2024) (Sept/2020) 9. Write a short note on Holmes'
16. Explain the electro metallurgy of Aluminium signal. (Sept/2020)
(June/2024) 10. What are Interhalogen compounds ? Give
examples. (Aug/2021) , (May/2022) & (June/2024)
UNIT-2 11. Explain the bleaching action of Sulphur
1. There is only a marginal difference in decrease dioxide(SO2) . (Aug/2021)& (June/2023)
in ionization enthalpy from Aluminium to 12. Write any two uses of Helium . (Aug/2021)
Thallium – Explain Why? (Mar/2020) 13. What is the inert pair effect ? (May/2022)
2. What is catenation ? Write the conditions for 14. What are the uses of Oxygen ? (May/2022)
catenation property. (Mar/2020) & (Sept/2022) 15. Give the uses of Argon. (Sept/2022)
3. A hydride of 2nd period alkali metal (A) on 16. Write the property of Interhalogen
reaction with compound of Boron (B) in the compounds. (Sept/2022) 17. Find the oxidation
presence of ether to give a reducing agent (C) state of Halogen in the following compounds.i)
Identify A, B and C. (Jun/2020) OF2 ii) I2O4 (Apr/2023)
4. How is Potash alum prepared ? (Jun/2020) 18. Complete the following reaction
5. What are the factors responsible for the 1. P4 + NaOH + H2O
anomalous behavior of the first element of the 2. XeF6 + H2O
p-block ? (Sept/2020), (Aug/2021)&(June/2024) 3. Cu + Conc H2SO4 (Apr/2023)
6. What is Catenation ? (Sept/2020) 19. Sulphuric acid is a dehydrating agent. Give
7. Give the uses of Borax (Aug/2021) & example(June/2023) & (Mar/2024)
(June/2024) 20. Give the uses of Helium. (Mar/2024)
8. What are the uses of Boric acid ? 21. Give the uses of Sulphuric acid. (June/2024)
(May/2022),(Sept/2022)& (Mar/2024)
9. Write the uses of Silicones. (Apr2023)
, 22. Write the molecular formula and structural between double salts and coordination
formula for the following a) Phosphoric acid b) compounds. (Aug/2021)
Nitric acid (June/2024) 11. What are the limitations of VB theory ?
(Aug/2021) & (Sept/2022) 12. Based on the VB
Unit-4 theory, explain why [Ni(CN)4]2-is diamagnetic.
1. Classify the following elements into d-block (Aug/2021)
and f-block elements: i) Tungsten ii) Ruthenium 13. Define Coordination number. (May/2022)
iii) Promethium iv) Einsteinium (Mar/2020) 14. Write the following for the complex
2. Write the Chromyl Chloride Test. (Mar/2020) [Ag(NH3)2]+ (a) Ligand (b) Central metal ion (c)
3. What is Lanthanide or Lanthanoid contraction IUPAC name (May/2022)
? Explain its consequences. 15. Write the IUPAC ligand name for the following
(Jun/2020),(June/2023)& (Mar/2024) a) C2O42- b) H2O c) Cl- (Sept/2022)
4. What are Interstitial compounds ? Give an 16. Define the term central Atom in coordination
example (Sept/2020),(Aug/2021), (June/2023) compound. (Apr/2023)
&(June/2024) 17. For the complex, [Pt(NO2)(H2O)(NH2)2]Br
5. Which metal in the 3d series exhibits +1 identify the following
oxidation state most frequently and why ? 18. a) Central metal atom/ion b) Coordination
(Sept/2020) 6. Why do block elements exhibit number c) Oxidation number of central metal
variable oxidation states ? (Aug/2021) ion
7. Calculate the number of unpaired electrons in 19. Describe the nature of bonding in metallic
Ti3+, Mn2+ and calculate the spin only magnetic carbonyls. (Apr/2023)
moment . (Aug/2021) 20. Mention the oxidation state of the central
8. Which is more stable Fe3+ or Fe2+ ? Why ? metal ion, coordination number, nature of ligand
(May/2022)& (Mar/2024) for the complex K4[Mn(CN)6] (June/2023)
9. What are the properties of Interstitial 21. Draw all possible geometrical isomers of the
compounds ? (May/2022) complex [Co(en)2Cl2]+ and identify the optically
10. Write a note on Zeigler – Natta catalyst. Give active isomer. (June/2023)
its uses. (Sept/2022) 22. Give an example of Coordination Compounds
11. Compare Lanthanides and Actinides. used in Medicine and a Biologically important
(Sept/2022 &Apr2023) 12. Out of Lu(OH)3 and Coordination Compound. (Mar/2024)
La(OH)3 which is more basic and why? 23. What is linkage isomerism ? Explain with an
(June/2024) example (June/2024)
24. In an octahedral crystal field, draw the figure
Unit-5 to show splitting of d-orbitals (June/2024)
1. Write any two hydrate isomers of the complex
with the molecular formula CrCl3.6H2O. UNIT-6
(Mar/2020) 1. If the number of closed packed spheres is 6,
2. [Sc(H2O)6]3+ is colourless – Explain (Mar/2020) calculate the number of Octahedral voids and
3. Write the IUPAC name of the following : Tetrahedral voids generated. (Mar/2020)
(Mar/2020) 2. Write a note on Frenkel defect (Mar/2020 &
A) [Ag(NH3)2]+ B) [Co(NH3)5Cl]2+ Apr2023)
4. Calculate the magnetic moment and magnetic 3. Differentiate between crystalline solids and
property of [CoF6]3+(Mar/2020) amorphous solids.
5. Give the difference between double salts and (Jun/2020,(May/2022)&(June/2023)
coordination compounds. (Jun/2020)& (Mar/2024) 4. If the radius of the compound is between 0.155
6. In an octahedral crystal, draw the figure to – 0.255, find out the Coordination number and
show splitting of d-orbitals. (Jun/2020) structure of the compound. (Jun/2020)
7. Indicate the possible type of Isomerism for the 5. Difference between Isotropy and Anisotropy in
following complexes solids. (Sept/2020)
(A) [Co(en)3]3+ (B) [Pt(NH3)2Cl2]2+ (Jun/2020) 6. Explain Schottky defect. (Sept/2020 &Apr2023)
8. Mention the metal complexes and its metal 7. Define Unit cell .
ions are used in biological systems. (Sept/2020) (Aug/2021),(Sept/2022)&(June/2024)
9. Write the postulates of Werner’s Theory. 8. What is meant by the term ‘’Coordination
(Sept/2020) &. (May/2022) 10. Give the difference Number’’ ? What is the Coordination number of
atoms in a bcc structure ? (Aug/2021)
