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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. |
How to balance redox reactions using Oxidation number method? |
| Answer» Bhai chup chap pad le | |
| 2. |
?Why H2 is stable but He2 is unstable? ? |
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Answer» H2 has its full dublet while he2 don\'t have It is a nobal gas |
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| 3. |
question 1 Why in the building of the atom, the filling of 4s orbitals takes place before 3d orbita? |
| Answer» Due to aufbau principle | |
| 4. |
1st,2nd,3rd ionisation potential values are 100eV,150eV and 1500eV elements can be |
| Answer» | |
| 5. |
200 / 300 |
| Answer» | |
| 6. |
Q. What is the difference between solubility and solubility product? |
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| 7. |
Aromatic hydrocarbons |
| Answer» | |
| 8. |
Explain types of chemistry |
| Answer» | |
| 9. |
What happen when ethyene is passed through red hot tube at 873 K? |
| Answer» It forms benzene. | |
| 10. |
What the dynamic equilibrium |
| Answer» It means that if the countinues flow of water or any liquid from one beaker to other beaker at the same speed without disturbing the level of their liquid is known is dynamic eqilibrium. | |
| 11. |
Covert butan 1 ol to propane |
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| 12. |
Physical properties of alkene |
| Answer» Okay i dont know | |
| 13. |
Is it for the non-polar molecule to always have non-polar bonds? |
| Answer» | |
| 14. |
Mno4- +I- =MnO2 + I2 |
| Answer» | |
| 15. |
Khf2 exists but khcl2 does not.why? |
| Answer» | |
| 16. |
Shape of co2 |
| Answer» linear | |
| 17. |
Can you explain Avogadro\'s law in detail |
| Answer» Avogadro proposed that equal volume of gases at the same temperature and pressure should contain equal number of molecules for example if we consider the reaction of hydrogen and oxygen to produce water we see that 2 volume of hydrogen combined with one volume of oxygen to give 2 volume of water without leaving any unreacted oxygen. | |
| 18. |
Lithium chloride covalent while sodium chloride is ionic in nature |
| Answer» Size of lithium is very small as compared to sodium.Due to high effective nuclear charge of lithium it is unable to show ionic nature and hence bond b\\w Li and Cl is covalent whereas Na shows ionic nature due to less effective nuclear charge. Na can donate e- this makes it ionic and hence forms ionic bond. | |
| 19. |
General configuration of s, or, and D black elements |
| Answer» General configuration of S block elements- ns1-2General configuration of D block elements- ns2(n-1)d1-10 | |
| 20. |
Out of nh3 and NF3 which has higher dipole moment |
| Answer» Just looking at NH3 and NF3, you might assume that NF3 will have high dipole moment than NH3 as \'F\' is more electronegative. But, NH3 has more dipole moment than NF3.In NH3, N is more electronegative than H. So, N pulls the electrons from H towards itself and so, the direction of moment due to the N-H bonds is in the same direction as that of the lone pair of electrons on Nitrogen.In NF3, F is more electronegative than N. So, all F atoms pull the electrons towards themselves. And, this resultant moment is opposite to the directions of that of the lone pair of electrons on the \'N\' atom. And, since Dipole Moment is a vector quantity, the net dipole decreases.And, so we have NH3 whose dipole moment is much higher than that of NF3. | |
| 21. |
What is the effect of concentration change, pressure, temperature, or catalyst on Equilibrium. |
| Answer» If concentration of reactants is more then the equilibrium shifts to forward direction if concentration of products is more then the equilibrium shifts to back ward directionIf pressure is increase the equilibrium shifts to less number of mole if pressure is decreased then in the direction of more number of molesCatalyst has no effect on equilibrium | |
| 22. |
What is wurtz fittig reaction?? |
| Answer» | |
| 23. |
Why CO2 is gas |
| Answer» Carbon dioxide is a linear structure with two double bonds between carbon and oxygen it is a small molecule and nonpolar with only weak bonds between the molecules hence it is a gas | |
| 24. |
Why Co2 is gas but SiO2 is solid ? |
| Answer» 1) Co2 consist of individual molecules with one central Carbon atom double bonded to two oxygen atoms.But Silicon does not form double bonds with oxygen.2) SiO2 is giant molecular structure but CO2 is simple molecular structure.Becoz of these two reasons CO2 is gas but SiO2 is solid. | |
| 25. |
Strong and weak liganda |
| Answer» | |
| 26. |
Strong and weak ligand |
| Answer» | |
| 27. |
Why alkanes are sp3 hybridized?? |
|
Answer» due to 4 sigma bonds not 3..!! Because they have 3 sigma bonds |
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| 28. |
What rule do we follow while naming an ether compound? |
| Answer» Ethers are compounds having two alkyl or aryl groups bonded to an oxygen atom, as in the formula R1–O–R2. The ether functional group does not have a characteristic IUPAC nomenclature suffix, so it is necessary to designate it as a substituent. To do so the common alkoxy substituents are given names derived from their alkyl component | |
| 29. |
Pyrolysis of C6H14 |
|
Answer» why c5h10 + ch4 is not shown Pyrolysis of C6H14 is:-CH3-CH2-CH2-CH2-CH2-CH3 ------C6H12 + H2 / C4H8 + C2H6/ C3H6 + C2H4 + CH4We just have to take care that C6H14 is broken down into smaller compounds. |
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| 30. |
Why the volume of ice is more and volume of water is less? |
| Answer» Due to presence of inter molecular Hydrogen bonding in ice surface area increases density decreases volume increases. | |
| 31. |
What is the oxidation state of sulphur in the following compounds:A)Na2S2O3B)Na2S2O4C)Na2S4O6 |
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| 32. |
What is the preparation of D2O2? |
| Answer» | |
| 33. |
Energy level diagram of O2+ |
| Answer» | |
| 34. |
Sublimation define |
| Answer» The process of conversion of solid into gas or gas into solid | |
| 35. |
Explain what happens when boric acid is heated |
| Answer» | |
| 36. |
Mechanisms of anti markovni kovs rule |
| Answer» | |
| 37. |
How many sigma and pi bond are there in this compound hconhch3 |
| Answer» | |
| 38. |
What is specific charge? |
| Answer» Charge ÷mass is called specific charge Ch-structure of atom | |
| 39. |
Calculate the volume of 1g Hg at STP |
| Answer» Molar mass of Hg at STP contains = 22.4 L 1 g Hg at STP CONTAINS = 22.4÷MOLAR MASS OF Hg volume | |
| 40. |
Lone pair |
| Answer» Pair of electron in an atom that do not participate in bond formation are called LONE PAIRS | |
| 41. |
How to know the hybridization of a compound? |
| Answer» No. Of hybridised orbital=no of lone pair + no of bonds | |
| 42. |
HELP HELP ME PLZ YR LAST YER KE CHEMISTRY KE PAPER DE DO KOI |
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Answer» Paper h tumhare pass Ku 9891691762 ape nugha es number pa phone karo |
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| 43. |
Explain the construction and working of standard hydrogen electrode |
| Answer» | |
| 44. |
Wt is atomic number of chloride |
| Answer» 17 | |
| 45. |
What is the meaning of mot |
| Answer» Molecular orbital theory | |
| 46. |
Why,electrons,reovloves,the, nucleus? |
| Answer» Due to centripetal force applied on them as a result of attraction between opposite charges | |
| 47. |
Why e- is moving . |
| Answer» | |
| 48. |
What is the strongest acid & base? |
| Answer» sulphuric acidNaOH base | |
| 49. |
What is Markovic rule ? Explain. |
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Answer» During addition reac.of unsymmetrical aliens negative part adondom gets attached to that carbon atom which posses lesser no.of hydrogen atom According to markovic rule an aromatic compound should contain (4n+2)π electrons where n is the number of nucleus. |
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| 50. |
Why fluorine is most electronegative |
| Answer» Because it contains at top of group and according to the electro negativity...fluorine has more electro negativity than other elements present in its group. | |