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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. |
Is the definiton of catalyst and positive catalyst same? |
| Answer» As we say catalyst it is not clear that whether it is positive or negative but if we say positive catalyst the term is simply cleared. So there is a difference in the the definition of both the terms. | |
| 2. |
Wursts reaction |
| Answer» | |
| 3. |
why the ionization enthalpy of nitrogen is largerthan that of oxygen? |
| Answer» Due to stable half filled electronic configuration it is difficult to remove electron from nitrogen | |
| 4. |
Inter patient variability |
| Answer» | |
| 5. |
Why halides have high negative enthalpies of formation |
| Answer» | |
| 6. |
Explain about stability of completely filled and half filled subshells |
| Answer» Completely filled means like noble gases | |
| 7. |
Why lithium cannot show photoelectric effect ? |
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Answer» Due to higher ionisation energy of lithium , it does not shoe photoelectric effect. Because of small size it electron are more closer to nucleus it require lot of energy to eject the electron |
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| 8. |
What is ionization enthalpy? |
| Answer» | |
| 9. |
What is bondline formula of acetamide |
| Answer» | |
| 10. |
Explain shielding effect. |
| Answer» | |
| 11. |
Right structure of XeF4 |
| Answer» Xe-4F equitorial and 2lp at axial | |
| 12. |
Why chemistry not learn |
| Answer» Becoz mostly it is theory based.. | |
| 13. |
group 2 elements are harder and denser than group 1 |
| Answer» | |
| 14. |
Why beh2 has 0 dipole moment although the beh bond are polar |
| Answer» | |
| 15. |
Which carbocation is stable and why? |
| Answer» | |
| 16. |
KC for pcl5 |
| Answer» | |
| 17. |
Explain syn gas reaction? |
| Answer» | |
| 18. |
Give the balanced ionic reaction for Mn3+ on disproportionation |
| Answer» | |
| 19. |
Calculate the mass 4 moles of o2 |
| Answer» 1 mole of O2 =2×16 =32So 4 mole of O2 =32×4=128 | |
| 20. |
General Electronic configuration of alkali earth metal? |
| Answer» General Electronic configuration of alkali earth metals is ns1, ns2 where n is no. of shells | |
| 21. |
What is hyper conjugation? |
| Answer» | |
| 22. |
can i get a flow chart on markovnikov and anti markovnikov rule |
| Answer» | |
| 23. |
Write IUPAC Name CH3 |CH2=CH-C=CH2 |
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Answer» Pent 1,3di ene Pent-1,3-di-ene |
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| 24. |
Why the taste of acid is sour? |
| Answer» Acid produce pH less than 7. Our tongue corresponds to a source taste if it\'s taste buds register a drop in pH below 7. That\'s why acid tastes source. | |
| 25. |
Limitations of Boyles law |
| Answer» | |
| 26. |
Guys Plz Send Me Question Paper CBSE Of Chemistry I have exam Yesterday Plzzzzzzz |
| Answer» | |
| 27. |
Why fluorination reaction of alkanes is not carried out?? |
| Answer» | |
| 28. |
Fajan rule |
| Answer» When a small cation attracts electron cloud oc large anion it is said to be fajan rule | |
| 29. |
Dahan rule |
| Answer» | |
| 30. |
What is Lindlers catalyst? |
| Answer» It is a type of catalyst | |
| 31. |
Why in carbon show tetravelence? |
| Answer» Carbon show tetravaelnce because it has 4 outermost electron and due to the loss or gain of these electron carbon may complete itz octet. | |
| 32. |
What is the molar mass of helium? |
| Answer» 4.002602 | |
| 33. |
convert 2-iodopropane to 2,3-dimethylbutane |
| Answer» | |
| 34. |
What is aeromatic compound |
| Answer» | |
| 35. |
What is markonik\'s rule |
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Answer» That the -ve part of the addundum get attached to the carbon atom have less hydrogen simple rule for adfition of functional group or any other compound H eill be added to the carbon group with higher H snd other to remaining |
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| 36. |
Oxidation number of carbon in methanoic acid |
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Answer» 3 How....complete solution 2 |
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| 37. |
What is the shape of SiCl4 |
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Answer» Sicl4 has tetrahedral shape . Here si is sp3 hybridised and bond angle are 109.5° Tetrahedral |
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| 38. |
why lead chloride is stable at high temperature |
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Answer» Ionic bond and very small size and thus needs very large amount of heat to break the ionic bond Because of very high ionisation enthalpy Because of high ionisation enthalpy |
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| 39. |
Arrange the elements of group 2 in the increasing order of the second ionization enthalpy |
| Answer» | |
| 40. |
What is kerenel |
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Answer» nucleus + inner shell electrons Kernel means the inner shells of electrons in an atom. |
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| 41. |
In N ,O ,F which has highest atomic radio. |
| Answer» Atomic radius increases down the group but decreases along the period As we know moving from left to right in a peruod effective nuclear charge increase thus resulting in decreasing the size of atom along a period Therefore amon N,O,F nitrogen has the highest atomic radius | |
| 42. |
How liquid state is different from gaseous state |
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Answer» Liquid has a definite volume. But gases have free surface to occupy. liquid : strong intermoleclar forces than gases. liquid: incompressible while gases compressible |
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| 43. |
How is liquid state is different from gaseous state. |
| Answer» | |
| 44. |
General trends of electron affinity |
| Answer» Electron affinity increases while moving from left to righ along a period But decreases while moving down the group | |
| 45. |
Difference between +i and - i |
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Answer» Bhai mana physics ka pucha question math ka nhi but bhai thanxx +i = √1 -i = √-1 |
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| 46. |
Amphoteric nature of water kya hai???? |
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Answer» . Water is a substance which can act either as an acid or a base, depending upon the nature of the other substance. So it\'s nature is amphoteric. As it can accept a proton and can act like a base or it can donate a proton and acts as acid. water is base as well as acid according to arrhenious. so it is amphoteric It is natural thing. It the type of making of Man which formula is 2H+O.It gives energy to the body. |
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| 47. |
What is 123 laws of Thermodynamics |
| Answer» The four laws of thermodynamics are:\xa0Zerothlaw of thermodynamics: If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other. This law helps define the concept of temperature.\xa0Firstlaw of thermodynamics: When energy passes, as work, as heat, or with matter, into or out from a system, the system\'s internal energy changes in accord with the law of conservation of energy. Equivalently, perpetual motion machines of the first kind (machines that produce work with no energy input) are impossible.Second law of thermodynamics: In a natural thermodynamic process, the sum of the entropies of the interacting thermodynamic systems increases. Equivalently, perpetual motion machines of the second kind (machines that spontaneously convert thermal energy into mechanical work) are impossible.\xa0Thirdlaw of thermodynamics: The entropy of a system approaches a constant value as the temperature approaches absolute zero.[2] With the exception of non-crystalline solids (glasses) the entropy of a system at absolute zero is typically close to zero, and is equal to the natural logarithm of the product of the quantum ground states. | |
| 48. |
What is 1,2&3law of thermodynamic |
| Answer» | |
| 49. |
Byers process |
| Answer» Bayer\'s process is the refining bauxite to produce aluminium oxide (alumina) . Bauxite is the most important ore of aluminium. | |
| 50. |
Relation between Cv and Cp |
| Answer» Cp - Cv = R | |