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. |
17. how does electrons are sharedin s,p,d,f shell of an atom |
| Answer» 17. how does electrons are sharedin s,p,d,f shell of an atom | |
| 2. |
In a thermodynamic process on an ideal monoatomic gas, the infinitesimal heat absorbed by the gas is given by TΔX, where T is temperature of the system and ΔX is the infinitesimal change in a thermodynamic quantity X of the system. For a mole of monoatomic ideal gas X=32R ln(TTA)+R ln(VVA). Here, R is gas constant, TA and VA are constants. The List - I below gives some quantities involved in a process and List - II gives some possible values of these qunatitites. List - IList - II(i) Work done by the system in process 1→2→3(P)13RT0ln2(ii)Change in internal energy in process1→2→3(Q)13RT0(iii)Heat absorbed by the system in process1→2→3(R)RT0(iv) Heat absorbed by the system in process1→2(S)43RT0(T)ΔQ=RT0+RT03ln 2 If the process carried out on one mole of monoatomic ideal gas is as shown in the TV - diagram with P0V0=13RT0. The correct match is - |
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Answer» In a thermodynamic process on an ideal monoatomic gas, the infinitesimal heat absorbed by the gas is given by TΔX, where T is temperature of the system and ΔX is the infinitesimal change in a thermodynamic quantity X of the system. For a mole of monoatomic ideal gas X=32R ln(TTA)+R ln(VVA). Here, R is gas constant, TA and VA are constants. The List - I below gives some quantities involved in a process and List - II gives some possible values of these qunatitites. |
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| 3. |
why is isobutane named so ?can't we call isobutane as tertbutane ?if not,why? |
| Answer» why is isobutane named so ?can't we call isobutane as tertbutane ?if not,why? | |
| 4. |
On mixing 10 ml of ethanol with 10 ml of benzene the total volume of the solution is (1) > 20 ml (2) < 20 ml (3) = 20 ml (4) Can't be predicted r |
| Answer» On mixing 10 ml of ethanol with 10 ml of benzene the total volume of the solution is (1) > 20 ml (2) < 20 ml (3) = 20 ml (4) Can't be predicted r | |
| 5. |
The reaction,MgO(s)+C(s)→Mg(s)+CO(g),For which △rHo=+491.1kJ mol−1and△rS∘=198.0JK−1mol−1 is not feasible at 298 K. Temperature above which reaction will be feasible is |
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Answer» The reaction, |
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| 6. |
The product of the reaction given below is: |
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Answer» The product of the reaction given below is: |
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| 7. |
The molar conductance of NH4OH at 0.01 M concentration is 11.3 ohm−1cm2mol−1. The degree of dissociation of NH4OH is: (Molar conductance at infinite dilution = 271.1 ohm−1cm2mol−1 |
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Answer» The molar conductance of NH4OH at 0.01 M concentration is 11.3 ohm−1cm2mol−1. The degree of dissociation of NH4OH is: (Molar conductance at infinite dilution = 271.1 ohm−1cm2mol−1 |
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| 8. |
What is meant by coplanar |
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Answer» What is meant by coplanar |
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| 9. |
Use a connector to make the sentences sound better. __________ Tushar boasts about his physical strength. He cannot perform a single push up. |
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Answer» Use a connector to make the sentences sound better. |
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| 10. |
Order of enthalpies of atomisation between 3d , 4d and 5d series . |
| Answer» Order of enthalpies of atomisation between 3d , 4d and 5d series . | |
| 11. |
The angular momentum of electron in p orbital is |
| Answer» The angular momentum of electron in p orbital is | |
| 12. |
When an air bubble rises in water what happened to its potential energy |
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Answer» When an air bubble rises in water what happened to its potential energy |
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| 13. |
Among V2+ and V3+ which is stable? |
| Answer» Among V2+ and V3+ which is stable? | |
| 14. |
order of extent ofH bonding in NH3 HF and H2 |
| Answer» order of extent ofH bonding in NH3 HF and H2 | |
| 15. |
At which of the following temperature - pressure condition, the deviation of a gas from ideal behaviour is expected to be minimum ? |
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Answer» At which of the following temperature - pressure condition, the deviation of a gas from ideal behaviour is expected to be minimum ? |
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| 16. |
A disk is undergoing pure rolling motion with speed v. The radius of the disk being R and mass being M. Then the angular momentum of the disk about the bottom most point will be having magnitude equal to |
| Answer» A disk is undergoing pure rolling motion with speed v. The radius of the disk being R and mass being M. Then the angular momentum of the disk about the bottom most point will be having magnitude equal to | |
| 17. |
The action of AlCl3 in Friedel crafts reaction is |
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Answer» The action of AlCl3 in Friedel crafts reaction is |
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| 18. |
34 Propene to propyne |
| Answer» 34 Propene to propyne | |
| 19. |
What is the empirical formula of vanadium oxide, if 2.74 g of the metal oxide contains 1.53 g of metal? |
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Answer» What is the empirical formula of vanadium oxide, if 2.74 g of the metal oxide contains 1.53 g of metal? |
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| 20. |
Which carbon is anomeric carbon in α−Fructose? |
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Answer» Which carbon is anomeric carbon in α−Fructose? |
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| 21. |
28. At 18 degree heat of solution of unhydrous CuSo4 in excess amount of water is equal to -15.90 kcal & for CuSo4 .H2O =2.75 kcal calculate heat of hydration of CuSo4 |
| Answer» 28. At 18 degree heat of solution of unhydrous CuSo4 in excess amount of water is equal to -15.90 kcal & for CuSo4 .H2O =2.75 kcal calculate heat of hydration of CuSo4 | |
| 22. |
difference between intramolecular forceand intermolecular force |
| Answer» difference between intramolecular forceand intermolecular force | |
| 23. |
What is heat? Give its units. |
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Answer» What is heat? Give its units. |
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| 24. |
How the following equations are dimensionally correct - [F]=G Mm/r^2 And V^2 - u^2=2as |
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Answer» How the following equations are dimensionally correct - [F]=G Mm/r^2 And V^2 - u^2=2as |
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| 25. |
Do we need to memorise the entire periodic table? |
| Answer» Do we need to memorise the entire periodic table? | |
| 26. |
43. What is the value of i when acetic acid dimerises |
| Answer» 43. What is the value of i when acetic acid dimerises | |
| 27. |
Which of the following arrangement of bond dissociation enthalpy of halogens is correct?[1 Mark] |
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Answer» Which of the following arrangement of bond dissociation enthalpy of halogens is correct? |
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| 28. |
55 Which of the following shall form an octahedral complex? a)d4 (low spin) b)d8 (high spin) c)d6(low spin) d)all of these |
| Answer» 55 Which of the following shall form an octahedral complex? a)d4 (low spin) b)d8 (high spin) c)d6(low spin) d)all of these | |
| 29. |
What are polysaccharides. |
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Answer» What are polysaccharides. |
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| 30. |
difference between unit cell and lattice |
| Answer» difference between unit cell and lattice | |
| 31. |
Find out the ratio of number of atoms in 1g of NH3 and 1g of N2? |
| Answer» Find out the ratio of number of atoms in 1g of NH3 and 1g of N2? | |
| 32. |
57 Why and how wave is formed when a particle moves?.why does not move photon straightly.?a vehicle moves on earth but how wave forms? |
| Answer» 57 Why and how wave is formed when a particle moves?.why does not move photon straightly.?a vehicle moves on earth but how wave forms? | |
| 33. |
What is the end product in the following sequence of reactions ? Acetamide A B |
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Answer» What is the end product in the following sequence of reactions ? Acetamide |
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| 34. |
Which of the following reactions will not give an amine as a product? |
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Answer» Which of the following reactions will not give an amine as a product? |
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| 35. |
What will be the stereochemistry of the product when: (a) an enantiomer is treated with a chiral reagent (b) an enantiomer is treated with an achiral reagent (c) a diastereomer is treated with a chiral reagent (d) a diastereomer is treated with an achiral reagent |
| Answer» What will be the stereochemistry of the product when: (a) an enantiomer is treated with a chiral reagent (b) an enantiomer is treated with an achiral reagent (c) a diastereomer is treated with a chiral reagent (d) a diastereomer is treated with an achiral reagent | |
| 36. |
1) What is Resonance 2) What is Dipole moment |
| Answer» 1) What is Resonance 2) What is Dipole moment | |
| 37. |
Proton,neutron,alpha particles have same kinetic energy. Compute the ratio of de broglie wavelength |
| Answer» Proton,neutron,alpha particles have same kinetic energy. Compute the ratio of de broglie wavelength | |
| 38. |
If all the three interaxial angles defining the unit cell are equal in magnitude, the crystal cannot belong to(I) Orthorhombic system(II) Monoclinic system(III) Hexagonal system(IV) Tetragonal system |
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Answer» If all the three interaxial angles defining the unit cell are equal in magnitude, the crystal cannot belong to (I) Orthorhombic system (II) Monoclinic system (III) Hexagonal system (IV) Tetragonal system |
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| 39. |
How to find bond order if CO2 and CO32- using MOT? |
| Answer» How to find bond order if CO2 and CO32- using MOT? | |
| 40. |
Which of the following relations is/are correct? |
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Answer» Which of the following relations is/are correct? |
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| 41. |
Is 0 is a neither positive nor negative |
| Answer» Is 0 is a neither positive nor negative | |
| 42. |
The enthalpy of gydrogenation of cyclohexene is -119.5.if resonance energy of benzene is -150.its entalpy of hydrogenation is |
| Answer» The enthalpy of gydrogenation of cyclohexene is -119.5.if resonance energy of benzene is -150.its entalpy of hydrogenation is | |
| 43. |
From 2mg of calcium 1.2 × 1019 atoms are removed. The number of Gram atoms of calcium left is? |
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Answer» From 2mg of calcium 1.2 × 1019 atoms are removed. The number of Gram atoms of calcium left is? |
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| 44. |
42. 1 mole of 'A', 1.5 mole of 'B' and 2 mole of 'C' are taken in a vessel of volume one litre . At equilibrium concentration of C is 0.5 mole/L. Equilibrium constant for the reaction A(g)+B(g) gives C(g) is (1)0.66 (2)0.066 (3)66 (4)6.6 |
| Answer» 42. 1 mole of 'A', 1.5 mole of 'B' and 2 mole of 'C' are taken in a vessel of volume one litre . At equilibrium concentration of C is 0.5 mole/L. Equilibrium constant for the reaction A(g)+B(g) gives C(g) is (1)0.66 (2)0.066 (3)66 (4)6.6 | |
| 45. |
The major product obtained when N-methylaniine is treated with NaNO2 and HCl at 0 - 5 ∘C is: |
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Answer» The major product obtained when N-methylaniine is treated with NaNO2 and HCl at 0 - 5 ∘C is: |
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| 46. |
Arrange the following alcohols in order of increasing ease of dehydration CH3CH2OH C6H5CH2OH I II Cl3CCH2OH F3CCH2OH III IV |
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Answer» Arrange the following alcohols in order of increasing ease of dehydration |
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| 47. |
KMnO4 on treatment with concentrated H2SO4 forms a compound (X) which decomposes explosively on heating forming (Y) . Them (X) and (Y) respectively are: (1) Mn2O7 , MnO2 (2) Mn2O ,Mn2O3 (3) MnSO4 , Mn2O3 (4) Mn2O3 MnO2 |
| Answer» KMnO4 on treatment with concentrated H2SO4 forms a compound (X) which decomposes explosively on heating forming (Y) . Them (X) and (Y) respectively are: (1) Mn2O7 , MnO2 (2) Mn2O ,Mn2O3 (3) MnSO4 , Mn2O3 (4) Mn2O3 MnO2 | |
| 48. |
Tell differences between thermosetting polymer, thermoplastic polymer, Elastomer and fibre. Tell the order of intermolecular forces between them. |
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Answer» Tell differences between thermosetting polymer, thermoplastic polymer, Elastomer and fibre. Tell the order of intermolecular forces between them. |
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| 49. |
What is the EnC of Mn 22 electron |
| Answer» What is the EnC of Mn 22 electron | |
| 50. |
57. calculate bp of solution cntaining 25g urea & 25g thio urea in 500g of chloroform boiling point of pure chloroform is 61.2 degree celsius & Kb = 3.63 |
| Answer» 57. calculate bp of solution cntaining 25g urea & 25g thio urea in 500g of chloroform boiling point of pure chloroform is 61.2 degree celsius & Kb = 3.63 | |