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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. |
Can any one answer why vapour came out from ice? |
| Answer» the air around the ice is cooled by the cold ice cube, and when the air cools, water vapor in the air condenses into fog which look like smoke coming from the ice..! | |
| 2. |
What is primary std. |
| Answer» | |
| 3. |
Define octate rule. Write its significance and limitations. |
| Answer» it says that an element is formed by sharing and by transfer of electron | |
| 4. |
What is +I effect order |
| Answer» Which chapter | |
| 5. |
What is the bond order of Hg |
| Answer» | |
| 6. |
what type of hybridisation is involved in carbon of benzene? |
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Answer» Sp2 Sp2 Sp2 Sp2 Sp2 |
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| 7. |
Is cotton a solid or liquid or gas |
| Answer» I think it\'s a semi-solid | |
| 8. |
Why ammonia get liquified on applying less pressure as compared to phosline |
| Answer» | |
| 9. |
How to about the existence of radicles |
| Answer» | |
| 10. |
Uses of liquid ammonia |
| Answer» | |
| 11. |
How to prove sp3 hybridisation for NH3? |
| Answer» By using hybrid diagram sorry I cannot draw the diagram here | |
| 12. |
What r isolobal compounds explain with example? |
| Answer» | |
| 13. |
Why HF is more viscous than HCl? |
| Answer» | |
| 14. |
What is meant by solute,solvent,? |
| Answer» Solute means, simply.. the substance which is to be dissolved. Solvent means, simply.. Water.. And if we add Solute in solvent then it will form solution. | |
| 15. |
Hybridisation of sf6 |
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Answer» sp3d2 6----hybrid orbital Sp3d2 |
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| 16. |
Iupac name of C6H500CH3 |
| Answer» | |
| 17. |
Which is the highly electronegative element |
| Answer» Flourine | |
| 18. |
What is the percentage of phosphorus in H3pO4? |
| Answer» H3PO4 Mol mass.. = (3 x H1 = 3) + (1 x P31 = 31) + (4 x O16 = 64). = 98g/mol.... now %of p(Phosphorus) =31/98×100=31.63%. | |
| 19. |
Differences between molecular orbital and atomic molecular orbitals? |
| Answer» The main difference between atomic and molecular orbital is that the electrons in an atomic orbital are influenced by one positive nucleus, while the electrons of a molecular orbital are influenced by the two or more nuclei depending upon the number of atoms in a molecule. | |
| 20. |
What is overlaaping of atomic orbitals |
| Answer» Result is the formation of sigma and pi orbitals | |
| 21. |
Differences between orbit and orbitals |
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Answer» \tOrbitOrbitals(i) An orbit is a well defined circular path around the nucleus in which the electrons revolve.(i) An orbital is the three dimension space around the nucleus within which the probability of finding an electron is maximum (upto 90%).(ii) It represents the planar motion of an electron around the nucleus.(ii) It represents the three dimensional motion of an electron around the nucleus.\t Orbit is the circular path around nucleus on which the electron revolves.. But orbital is the region between the nucleus and the path on which electron revolves. |
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| 22. |
What volume of a decamolar solution be diluted to make a final volume of 2l with the decimolarity |
| Answer» | |
| 23. |
Is it difficult to imagine our life without chemistry |
| Answer» Yes | |
| 24. |
Structure of PCl5 |
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Answer» Structure — trigonal bipyramidalAngle— 90° ,120°Hybridisation— SP3d Square pyramidal The structure formed will be square pyramidal |
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| 25. |
Why the intermolecular forces are different from the electrostatic forces? |
| Answer» Electrostatic forces occur due to static electricity. Molecules are just too small to produce electrostatic forces to use it as a bond among themselves. Covalent bonds are more like inter-atomic forces rather than intermolecular. These bonds occur while atoms share electrons to form bonds and make molecules. | |
| 26. |
In the balmer series formula 109677(1/2×2-1/n2) what does \'n\' indicate? |
| Answer» n indicate the number of orbit... | |
| 27. |
Wavelength= h/mvWhat is m and its value and what is v |
| Answer» m is mass and v is velocity | |
| 28. |
Solution of example 1of equilibrium chapter |
| Answer» | |
| 29. |
Calculate the mass percentage of different elements present in sodium sulphate |
| Answer» | |
| 30. |
Is there any body from tiny tots inter college tundla |
| Answer» | |
| 31. |
What is the structure of ozone molecule |
| Answer» Google karle | |
| 32. |
What is the physical property of [ H2] . |
| Answer» Physical properties of hydrogen (1) colourless, odourless , tasteless gas . (2) lighter than air , collected by downward displacement of water . (3) insoluble in water. (4) Highly combustible. (5) neutral towards litmus. (6) lightest of all elements. | |
| 33. |
What is complex coordination? |
| Answer» | |
| 34. |
Why Cl is more electronegative than F |
| Answer» This is due to small size. The electron electron repulsion in compact 2p subshell are comparatively large hence the other electrons are not accepted in the case of class. | |
| 35. |
Which elements have an ability to make "pi bond" first?? |
| Answer» Nonmetals and metals of group 2&3 have an ability to form pi bonds | |
| 36. |
Why lp-lp has highest repulsion |
| Answer» | |
| 37. |
Stigma and pi bond difference |
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Answer» Sigma bond overlap in their axis and pie bond overlap side wise Sigma -this bond form by side wise overlapping. So sigma bond is strong bond. Free rotation around a sigma bond is possible .Pi-this bond is form by body wise overlapping . So pi bond is weak bond free rotation is not possible |
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| 38. |
Why is h2o2 storaged in wax lined glass or plastic vessel in dark |
| Answer» | |
| 39. |
Suggest me syllabus of kvpy |
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Answer» PCMB of classes 8-11 10 maybe |
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| 40. |
Why alcohol is soluble in water whereas acetone is not |
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Answer» Because it went through 100% degree of disociation I think They both have their own altitude |
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| 41. |
which one of the following compound may have odd electrons bond |
| Answer» No2 | |
| 42. |
AlCl3,BCl3,BF3 which is more acidic according to lewis concept and why? |
| Answer» | |
| 43. |
Difference b/w shielding and screening effect? |
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Answer» both* bith are same |
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| 44. |
Can anyone explain draggo\'s rule |
| Answer» | |
| 45. |
What is law of active mass?explain. |
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Answer» I didnt understand properly Active mass was defined as "the amount of substance in the sphere of action" For species in solution active mass is equal to concentration. For solids active mass is taken as a constant. α, a and b were regarded as empirical constants, to be determined by experiment. |
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| 46. |
What is the common name for potassium nitrate |
| Answer» Potass | |
| 47. |
Preparation of sulpuric acid |
| Answer» | |
| 48. |
Significant figures |
| Answer» | |
| 49. |
Shining effect |
| Answer» | |
| 50. |
why in evaporation the liquid is not changed in vapour as in boiling |
| Answer» | |