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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. |
important in thermo |
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Answer» Enthalpy, extensive and intensive property,heat capacity, entropy,Gibbs energy ,hess law, work function Laws |
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| 2. |
De broglie hypothesis |
| Answer» | |
| 3. |
calculate mole in sugar |
| Answer» 180.16 | |
| 4. |
I have only 3 day how can I prepared organic 90 persant age all 11th |
| Answer» | |
| 5. |
Why relative masa of neucleus is less than the mass of proton and neutron |
| Answer» Because in a atom masses are equally distributed in each and evey part of atom except centre (nucleous) it is vacent to provide stability to the atm | |
| 6. |
Anti markonikoff rule |
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| 7. |
What is the comparison between group 1 Nd group 2 elements.....?? |
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| 8. |
What is polarized ability |
| Answer» | |
| 9. |
What is the difference between dH and q? |
| Answer» | |
| 10. |
Electric configuration of H+ |
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Answer» 1s*0 K:0 |
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| 11. |
What are the causes of stability of half filled and completly filled orbitals |
| Answer» Coz electron cloud are symmetrically distributed?? | |
| 12. |
What is limiting reagents |
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Answer» It is that reagent which gets completely consumed in the reaction. Those substance which obtain in small quantity than he found The substance which is present in the limted amount that is called limiting reagents. |
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| 13. |
How to find group no |
| Answer» Group no defines the no of valence electrons. For example sodium has only single electron its outermost shell so it is find in group no 1. | |
| 14. |
What are the rules for IUPAC nomenclature |
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| 15. |
What is radical |
| Answer» | |
| 16. |
How we do hybridisation? |
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| 17. |
how to find o.n ....? it is valence electron no. also yes or no fast soon |
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Answer» By checking the molecular structure or molecular formula and comparing the electronegativities. If checking the structure check if the bonds are single,double,triple... Check its octate.. |
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| 18. |
What are your Resolutions for New Year? ?????? |
| Answer» | |
| 19. |
Write the resonance structure of CH3NO2 |
| Answer» | |
| 20. |
One is Wright in one penatane |
| Answer» | |
| 21. |
Why CaO keeps NaOH dry? |
| Answer» | |
| 22. |
PH of 10power-3 of hcl acid |
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Answer» - log[10^-3] = 3 log10=3×1= 3 Log [10^-3] = 1×-(-3) = +3 |
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| 23. |
What is laminar chemistry |
| Answer» | |
| 24. |
Explain the chemical bonding |
| Answer» When a bond creat between two atoms is known as chemical bonding | |
| 25. |
What are the commen of matter |
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| 26. |
The conc. Of sulphide ions in 0.1 M HCl........... |
| Answer» | |
| 27. |
Balance the following equation by Hit and trial method (1) Na +H2O arrow |
| Answer» | |
| 28. |
What is conformation or conformers or rotamers? |
| Answer» it is free rotation observed around carbon-carbon(c-c) single bonddue to this many structures form having same molecular formula which are known as conformers or rotamers | |
| 29. |
Why are the atomic masses the average values |
| Answer» | |
| 30. |
Conversion of ethanol to glycol |
| Answer» | |
| 31. |
Hybridisation means |
| Answer» Overlapping of two or more orbitals to equalise their energies | |
| 32. |
Why boric acid is consider as a weak acid |
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Answer» It accept e from hydroxyl ion and behaves as Lewis acid Due to presence of intermolecular HL bonding. It is not easy to release h+ion |
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| 33. |
What is desirable concentration of fluoride ion pH of drinking water? |
| Answer» 7 | |
| 34. |
What is 3d9 n l m s value |
| Answer» | |
| 35. |
What are the limitations of first law of thermodynamics |
| Answer» 1. It doesn\'t shows the direction of flow of heat. 2. It doesn\'t shows the final temperature of both bodies when they are in direct contact. 3 . Entropy of heat is not shown. | |
| 36. |
Formula of calgone |
| Answer» Na4P6O18 | |
| 37. |
Isomerisation? |
| Answer» | |
| 38. |
Enthalpy ( ∆ H ) can\'t understand !! |
| Answer» Amount of heat content at constant pressure simply ., ∆H=∆U +p∆V | |
| 39. |
Nomenclature of organic compound |
| Answer» | |
| 40. |
Give a short note on huckle rule? |
| Answer» | |
| 41. |
What happens when silicon dioxide is treated with hydrogen chloride??? |
| Answer» SiO2 + Hcl gives SiCl + H2O | |
| 42. |
What happen when silicon dioxide is treated with hydrogen chloride |
| Answer» | |
| 43. |
what is temporary and permanent hardness? |
| Answer» The presence bicarbonates of calcium and magnesium salt in water is called temporary hardnessThe presence of sulphate and chloride in calcium and magnesium salt in water is called permanent hardness of water | |
| 44. |
what is mean by polar&non polar molecule? |
| Answer» Polar is a molecule In which dipole movement is occur eg. NH4. And non polar is a molecule In which dipole moment is zero eg. CO2 | |
| 45. |
BeH2 molecule has o dipole moment although the Be bond are polar |
| Answer» | |
| 46. |
Representation of 3-methylpenta-3-en-2-ol |
| Answer» | |
| 47. |
Aliya good night and to all my cbse friend |
| Answer» | |
| 48. |
Preparation of alkanes by unsaturated hydrocarbon? |
| Answer» CH2=CH2+H2 =CH3+CH3 | |
| 49. |
Why Nacl is more reactive than Licl |
| Answer» to fajan’s rule no bond is 100 % ionic but have some covalent charecter also ‘due to smaller size lithium has greater polarising power than sodium [largerin size than Li] hence greater covalent charecter in LiCl than NaCl hence NaCl is moreionic than LiCl. | |
| 50. |
Good morning to all my friend |
| Answer» | |