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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following molecule can satisfy the condition of having sp2 hybridization and bond angle 120°? |
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Answer» Which of the following molecule can satisfy the condition of having sp2 hybridization and bond angle 120°? |
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| 2. |
For the combustion of C3H8(g) at constant temperature ΔH−ΔU is: |
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Answer» For the combustion of C3H8(g) at constant temperature ΔH−ΔU is: |
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| 3. |
In Cannizaro reaction, the combination that will not result in a product is : |
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Answer» In Cannizaro reaction, the combination that will not result in a product is : |
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| 4. |
Which of the following alkyl halide undergo rearrangement in SN1 reaction |
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Answer» Which of the following alkyl halide undergo rearrangement in SN1 reaction
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| 5. |
Which of the following compound will show geometrical isomerism? |
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Answer» Which of the following compound will show geometrical isomerism? |
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| 6. |
Cryolite is |
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Answer» Cryolite is |
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| 7. |
What is meant by hybridisation of atomic orbitals? Describe the shapes of sp, sp2,sp3 hybrid orbitals. |
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Answer» What is meant by hybridisation of atomic orbitals? Describe the shapes of sp, sp2,sp3 hybrid orbitals. |
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| 8. |
The appearance of color in solid alkali metal halides is generally due to |
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Answer» The appearance of color in solid alkali metal halides is generally due to |
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| 9. |
Which one of the following form a chelate ring |
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Answer» Which one of the following form a chelate ring |
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| 10. |
What will be the IUPAC name of the given molecule? |
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Answer» What will be the IUPAC name of the given molecule? |
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| 11. |
The reaction H2S + H2O2 → SO2 + 2H2O manifests |
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Answer» The reaction H2S + H2O2 → SO2 + 2H2O manifests |
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| 12. |
The radius of an atomic nucleus is of the order of: |
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Answer» The radius of an atomic nucleus is of the order of: |
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| 13. |
How many atoms are on the same plane across a peptide bond at low temperatures? |
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Answer» How many atoms are on the same plane across a peptide bond at low temperatures? |
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| 14. |
(a) Distinguish between the terms homopolymer and copolymer and give an example of each. (b) Write the monomers used for getting the following polymers. (i) Polyvinyl chloride (ii) Teflon (iii) Bakelite |
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Answer» (a) Distinguish between the terms homopolymer and copolymer and give an example of each. (b) Write the monomers used for getting the following polymers. (i) Polyvinyl chloride (ii) Teflon (iii) Bakelite |
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| 15. |
Highest bond energy exists for |
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Answer» Highest bond energy exists for |
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| 16. |
Lime stone is an ore of Calcium. On decomposition gives an oxide (A) and CO2 gas. ‘A’ is reduced by Coke to give ‘B’ and Volatile gas. B+N2CaCl2−−−−→1200∘CNitrolim Nitrolim is a fertilizer. The type of bonds present in compound (B) are: |
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Answer» Lime stone is an ore of Calcium. On decomposition gives an oxide (A) and CO2 gas. ‘A’ is reduced by Coke to give ‘B’ and Volatile gas. B+N2CaCl2−−−−→1200∘CNitrolim Nitrolim is a fertilizer. The type of bonds present in compound (B) are: |
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| 17. |
Which is true about enzymes? |
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Answer» Which is true about enzymes? |
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| 18. |
The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is name of the catalyst? |
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Answer» The first step in the manufacture of nitric acid is the catalytic oxidation of ammonia. What is name of the catalyst? |
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| 19. |
Which of the following polymers can have strong intermolecular forces ? (a) Nylon (b) Polystyrene (c) Rubber (d) Polysters |
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Answer» Which of the following polymers can have strong intermolecular forces ? (a) Nylon (b) Polystyrene (c) Rubber (d) Polysters |
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| 20. |
FeSO4 solution mixed with (NH4)2SO4 solution in 1:1 molar ratio gives the test of Fe2+ ion but CuSO4solution mixed wtih aqueous ammonia in 1:4 molar ratio does not give the test of Cu2+ ion. Explain why? |
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Answer» FeSO4 solution mixed with (NH4)2SO4 solution in 1:1 molar ratio gives the test of Fe2+ ion but CuSO4solution mixed wtih aqueous ammonia in 1:4 molar ratio does not give the test of Cu2+ ion. Explain why? |
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| 21. |
Calculate the number of kJ of heat necessary to raise the temperature of 60.0 g of aluminium from 35∘C to 55∘C. Molar heat capacity of Al is 24 J mol−1K−1 |
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Answer» Calculate the number of kJ of heat necessary to raise the temperature of 60.0 g of aluminium from 35∘C to 55∘C. Molar heat capacity of Al is 24 J mol−1K−1 |
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| 22. |
One of the reactions that takes place in producing steel from iron ore is the reduction of iron (II) oxide by carbon monoxide to give iron metal and CO2. FeO(s)+CO(g)↔Fe(s)+CO2(g);Kp=0.265 at 1050 K. What are the equilibrium partial pressures of CO and CO2 at 1050 K if the initial partial pressures are: PCO = 1.4 atm and PCO2 = 0.80 atm? |
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Answer» One of the reactions that takes place in producing steel from iron ore is the reduction of iron (II) oxide by carbon monoxide to give iron metal and CO2. |
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| 23. |
The ionization constant of propanoic acid is 1.32×10−5. Calculate the degree of ionization of the acid in its 0.05M solution and also its pH. What will be its degree of ionization if the solution is 0.01M in HCl also? |
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Answer» The ionization constant of propanoic acid is 1.32×10−5. Calculate the degree of ionization of the acid in its 0.05M solution and also its pH. What will be its degree of ionization if the solution is 0.01M in HCl also? |
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| 24. |
The correct order of basic strength of the following is |
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Answer» The correct order of basic strength of the following is
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| 25. |
Among the following ions, which has the least ionic mobility in aqueous medium? |
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Answer» Among the following ions, which has the least ionic mobility in aqueous medium? |
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| 26. |
KF combines with HF to form KHF2. The compound contains the species |
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Answer» KF combines with HF to form KHF2. The compound contains the species |
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| 27. |
Total number of nodes = _____ |
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Answer» Total number of nodes = _____ |
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| 28. |
Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from the metal surface? |
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Answer» Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from the metal surface? |
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| 29. |
Define octet rule. Write its significance and limitations. |
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Answer» Define octet rule. Write its significance and limitations. |
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| 30. |
The product P is: |
Answer»  The product P is: |
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| 31. |
If the number of optically active products is denoted by X, and the number of fractions obtained after distillating the major products be Y, then X-Y is . |
Answer»  If the number of optically active products is denoted by X, and the number of fractions obtained after distillating the major products be Y, then X-Y is |
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| 32. |
3 gm of carbon reacts completely with 5 gm of oxygen. What will be the % of CO in the product? |
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Answer» 3 gm of carbon reacts completely with 5 gm of oxygen. What will be the % of CO in the product? |
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| 33. |
The non-stoichiometric compound Fe0.94O is formed when x% of Fe2+ ions are replaced by Fe3+ ions then x is |
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Answer» The non-stoichiometric compound Fe0.94O is formed when x% of Fe2+ ions are replaced by Fe3+ ions then x is |
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| 34. |
Which of the following reactions is(are) possible for isolated decaying particles on the right side, without requiring energy? |
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Answer» Which of the following reactions is(are) possible for isolated decaying particles on the right side, without requiring energy? |
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| 35. |
The chemical formula of A, B and C are: |
Answer»  The chemical formula of A, B and C are: |
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| 36. |
A soft silver-white metal (A) burns with a golden-yellow flame to give a yellow powder (B) which on treatment with water liberates oxygen giving a clear solution (C). The solution, when mixed with Al, attacks the metal, liberating a gas (D) and forming a water-soluble compound (E). The metal (A) dissolves in liquid NH3 to form a deep blue solution which is a good conductor and an excellent reducing agent. Identify (D): |
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Answer» A soft silver-white metal (A) burns with a golden-yellow flame to give a yellow powder (B) which on treatment with water liberates oxygen giving a clear solution (C). The solution, when mixed with Al, attacks the metal, liberating a gas (D) and forming a water-soluble compound (E). The metal (A) dissolves in liquid NH3 to form a deep blue solution which is a good conductor and an excellent reducing agent. Identify (D): |
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| 37. |
In the following sequence, product I, J, and L are formed. K represents a reagent. The structure of the product I is: |
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Answer» In the following sequence, product I, J, and L are formed. K represents a reagent. The structure of the product I is: |
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| 38. |
Which compound has a planar structure? |
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Answer» Which compound has a planar structure? |
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| 39. |
Which of the following reactions will yield 2,2-dibromopropane? |
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Answer» Which of the following reactions will yield 2,2-dibromopropane? |
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| 40. |
1.2 moles of a gas is present in a piston fitted cylinder with volume V at temperature 200 K. Gas has mean free path of 2.25 m. If piston is moved out to have 2V volume and temperature is raised to 400 K then what will be new mean free path (in m) of the gas |
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Answer» 1.2 moles of a gas is present in a piston fitted cylinder with volume V at temperature 200 K. Gas has mean free path of 2.25 m. If piston is moved out to have 2V volume and temperature is raised to 400 K then what will be new mean free path (in m) of the gas |
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| 41. |
Baking soda is ___ salt. |
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Answer» Baking soda is |
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| 42. |
Match the structures of the compounds given in Column I with the name of the compounds given in Column II. |
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Answer» Match the structures of the compounds given in Column I with the name of the compounds given in Column II. |
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| 43. |
The enthalpy of hydrogenation of cyclohexene is −119.5 kJ/mol. If resonance energy of benzene is −150.4 kJ/mol then its enthalpy of hydrogenation would be: |
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Answer» The enthalpy of hydrogenation of cyclohexene is −119.5 kJ/mol. If resonance energy of benzene is −150.4 kJ/mol then its enthalpy of hydrogenation would be: |
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| 44. |
SN1 solvolysis of 3-bromocyclohex-1-ene in ethanol gives: |
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Answer» SN1 solvolysis of 3-bromocyclohex-1-ene in ethanol gives: |
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| 45. |
Which one is most reactive towards SN1 reaction? |
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Answer» Which one is most reactive towards SN1 reaction? |
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| 46. |
Why is 2 chloro butane formed faster than 1 chloro butane in the chlorination of N butane? |
| Answer» Why is 2 chloro butane formed faster than 1 chloro butane in the chlorination of N butane? | |
| 47. |
Which of the following is an electrophile ? |
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Answer» Which of the following is an electrophile ? |
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| 48. |
The spectrum of He+ is expected to be similar to that of: |
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Answer» The spectrum of He+ is expected to be similar to that of: |
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| 49. |
In which of the following arrangements a metal would have least density? (a)BCC (b) CCP (c)HCP (d)SAME IN ALL |
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Answer» In which of the following arrangements a metal would have least density? (a)BCC (b) CCP (c)HCP (d)SAME IN ALL |
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| 50. |
CH3COOH + O2 =? |
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Answer» CH3COOH + O2 =? |
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