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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. |
What is Bomb calorimeter |
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Answer» There device which measure du and dh Bomb calorimeter is a device that is used to measure delta U and delta H. |
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| 2. |
What is diasteromers |
| Answer» | |
| 3. |
Why is Significant figure of 100 is 1 |
| Answer» Here there is no Unit so we do not count 0 | |
| 4. |
Calculate the wave number of second line of balmer series of hydrogen spectrum |
| Answer» | |
| 5. |
Under what conditions the equilibrium between ice and water is established? |
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Answer» When freezing and evaporation are included equality rate When rate of melting ice become equal to rate of freezing of water. |
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| 6. |
What is oxidation no of ki3 |
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Answer» -1 -1 K+[i-i~i]- isme i i bond ki 0 or k ki plus 1 to i ki minus 1 so ans is -1 -1 |
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| 7. |
CH3 Ch Ch double bond Ch Ch 2 Ch triple Bond CH ka nomenclature |
| Answer» 6methyl,4butene,1,the | |
| 8. |
Why iron get brown when put in copper sulphate solution |
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Answer» It is displacement reaction ??? Iron is a more reactive metal then copper hence it displaces copper from its solution and this copper deposits on iron .as copper is brown in colour hence iron rod appears brown Due to deposition of copper on the iron as the reaction takes place is displacement reaction ,so iron takes place of copper and the copper deposited on it this is done because iron has more reactivity than copper |
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| 9. |
How are free radicals and carbocations produced? Discuss there relative stability? |
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| 10. |
Define Le chatelier\'s principle........ |
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| 11. |
What do you mean by term rosting |
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Answer» Heating in presence of OXygen Heating because absence of oxygen Heating in absence of oxygen Heating |
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| 12. |
Enthalpy of neutralizationPlz helpExams 2morrow |
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Answer» The energy released during neutralisation reaction The heat of energy released when acid and base combines for neutralisation reaction is called enthalpy of neutralisation. |
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| 13. |
write the reaction by ion method kMnO4 + C2O4H2 + H2SO4---------- k2so4 + Mnso4 + co2 + H2 O |
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| 14. |
How to make study of chemestry easy..? |
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Answer» By consider it easy Written practice will help |
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| 15. |
Why water boils at low temperature at mountains?? |
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Answer» More vapour pressure is created on that place by increasing pressure and decreasing temp Because atmospheric pressure decreases in mountains\xa0 Because of high pressure and more vapour pressure |
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| 16. |
What is the significance of auto protolysis of water ? |
| Answer» To decompose molecules of water | |
| 17. |
Why H2O us liquid and H2S is gas |
| Answer» Due to the presence of hydrogen bond in H2O whereas hydrogen bond is absent in H2S | |
| 18. |
the reducing nature of alkali metal increase down the group but Li is most reducing. why? |
| Answer» Because of its ore property and happy children day payalji | |
| 19. |
Give 3 difference between gydrogen and halogens. |
| Answer» Elements of 17 group are halogens | |
| 20. |
C6h24 gives up co2 +h2o |
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Answer» Combustion No because we have to provide O2 for combustion |
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| 21. |
Formula for solving thermodynamic numerical questions |
| Answer» | |
| 22. |
How we do balancing |
| Answer» By maintaining equal no. Of electrons in Bothal reactant and product | |
| 23. |
why sodium hydrogencarbonate is called baking soda? |
| Answer» Because it is cooking material | |
| 24. |
Can anyone please send me notes of resonance? |
| Answer» | |
| 25. |
General formula for trihydric alcohol |
| Answer» | |
| 26. |
Structure of kMnO4 |
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Answer» Mn attached with 3 molecules of OXygen with double bond and 1 molecule of OXygen with single bond on other side the one molecule of OXygen is attaches with single bond with k ??????????????? |
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| 27. |
define mesomeric effect |
| Answer» The mesomeric effect in chemistry is a property of substituents or functional groups in a chemical compound. | |
| 28. |
Short note on fractional distillation |
| Answer» | |
| 29. |
What is black body radiation |
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Answer» The radiation which come from black body on changing conditions Black body is a body which absorb all type of substances and radiation .......so the radiation given out by black body is black body radiation |
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| 30. |
why water has maximum density at 4.c |
| Answer» | |
| 31. |
Isomerism means |
| Answer» Same molecular formula but different structure | |
| 32. |
Why in HOF the Fluorine has oxidation no. +1???? |
| Answer» As oxidation no.of H is +1 and oxidation no.of o is _2 oxidation no.of F is+1. 1+1-2=0 | |
| 33. |
Ehy chlorine has more ege than fluorine? |
| Answer» | |
| 34. |
Who gives pressure correction and volume correction in ideal gas equation |
| Answer» Vanderwaal | |
| 35. |
write the enthalpy for Na |
| Answer» | |
| 36. |
Calculate the value of R in s i unit |
| Answer» | |
| 37. |
How to find lattice enthalpy |
| Answer» See chemistry PRADEEP book 1st part | |
| 38. |
pauli\'s |
| Answer» He was a chemist.... | |
| 39. |
Cr2OH35=? |
| Answer» | |
| 40. |
10litre flask contains |
| Answer» | |
| 41. |
why flourine is most electronegative in peroidic table why hydrogen not |
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| 42. |
What is vsepr |
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Answer» Valence bond electron pair repulsion theory........ The theory which tells us about the maximum stability and definite stability It\'s an theory in which all molecules are grouped in the basis of shape. |
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| 43. |
Difference between orbit and orbital |
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Answer» GOOD Orbit is the main shell and orbital is subpart of orbit.these are s P D and f |
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| 44. |
What is 1 mole |
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Answer» The unit to measure atom and its particles 6.022*1022 |
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| 45. |
What do you mean by the term poise |
| Answer» | |
| 46. |
Why H= U+PV |
| Answer» Because u+pv =h | |
| 47. |
What are the favourable coditions for ionic bond formation? |
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Answer» Main condition is to be ion and solid Complete transfer of electron must be there then only ionic bond are form and also to form this bond element should be electronegative and electropostive |
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| 48. |
What is electropositive and electronegative elements ? |
| Answer» Element which loss electron is called electropostive and element which gain electron example NACl mean Na will have + charge and CL will have - sign | |
| 49. |
What is carbonation? |
| Answer» In chemistry, carbonation refers to two chemical processes involving the binding of carbon dioxide to substrates. Various applications or manifestations of this reaction are listed in order of their relative scale. In biochemistry | |
| 50. |
Nitrogen central atom in Ammonia How? |
| Answer» Ammonia has one nitrogen and three hydrogen and three hydrogen depend on nitrogen for covalent bond so dependency on nitrogen is more than hydrogen so it is central atom | |