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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 the mass of 1.mole of water 2.0.5mole of Co2 3.2.5 mole of Cl2 ? |
| Answer» Write properly | |
| 2. |
Last10 year question paper of chemistry class 12cbse board |
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| 3. |
What is the properties of solid ,liquid and gase |
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| 4. |
Convert 20°C into Fahrenheit. |
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Answer» How do u get 77 for this question? 20×(9/5) = 36 36+32 = 68 It\'s clear right. But by this formula m getting the Ans 77°F T(ºF) = 20ºC × 9/5 + 32 = 68ºFThus, 20ºC = 68ºF |
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| 5. |
For which physical quantity Js(joule second) is unit |
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Answer» Planks constant Work or energy |
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| 6. |
Cannamic acid |
| Answer» Formula is C9H8O2 with molecular weight 146.168 | |
| 7. |
Who determined charge to Mass ratio of an electron |
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| 8. |
Why electron doesnot fall in nucleus |
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Answer» Electron has its own velocity perpendicular to the centripetal accelaration of the nucleus It is so bcoz of the strong nuclear force acting btw electrons....nd this force is the strongest force in the nature |
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| 9. |
Convert 1angstrom into 1nanometre |
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Answer» It\'s 10^-1nm not 10^-10nm 1A°=10^-10 Your question should have been \'Convert 1angstrom into nanometre\'1angstrom = 10 ^ -10 metre1nanometre = 10 ^ -9 metreTherefore 1angstrom = 10 ^ -1 nanometre |
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| 10. |
Why energy is released when two atoms combine to form a molecule |
| Answer» To remain stable as a molecule | |
| 11. |
What is the molecular mass of H3PO4 |
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Answer» 98 Net see find krlo,,vaise 97 |
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| 12. |
How do we find atomic radius of an element? |
| Answer» By using this formula0.529n^2/Z | |
| 13. |
Balance :P4+OH^- to give PH3+HPO2^- |
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| 14. |
Find the number of electrons in potassium with l=0 |
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| 15. |
Hii frnds are u worried about ur result i m not are u ???? |
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Answer» Naah.... Result are not declared for u only but I know my marks koi vishal pathak ko janta h kiyamujhe btao hi Result is not declared yet No I know my marks |
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| 16. |
2noble gas element alkiline?2nd transution element? |
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| 17. |
What is molarity and molality? |
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Answer» There is a simple difference b.w. the above two and that is : Molarity - the number of moles of solute present in a solution(in litre). Molality - the number of moles of solute dissolved in solvent(in kg). Molarity is the moles of solute per unit litre of solution Molality means solute dissolved in a solution |
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| 18. |
What is percentage composition? |
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| 19. |
Is CBSE checking for 10th is linient ? |
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Answer» Noo...i asked ny teachers...and they said that yes it is lenient....they also have checked some copies and from thier personal experience they said that teachers are giving students marks leniently....(not very lenient but they are lenient)..... Nooo Srsly ? No |
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| 20. |
What is de- Broglie\'s wavelength ? |
| Answer» He said that wavelength is inversaly proportional to the mass of any substance,if lambda is higher than its mass is lesser and vice versa | |
| 21. |
Hund\'s rule |
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| 22. |
does anyone can explain me line emissions spectra? |
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| 23. |
What is the molality of 1 M solution of sodium nitrate if its density is 1.25 g\\cc. |
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| 24. |
Write all the principal for filling up of an orbital ? |
| Answer» Hund\'s rule ;pauli exclusion principal and n+l rule | |
| 25. |
Simbiotic relationship |
| Answer» Mutual relationships between 2 organisms in which both are benefited | |
| 26. |
What is the molecular mass of al2 (so4)3 |
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Answer» 348 g/mol 342.15g/mol It will be a big value |
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| 27. |
difference between precision and accuracy |
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Answer» both accuracy and precision sounds similar term can i get answer in tabular form and points Precision is the readings obtained after repeated experiments with a difference of 0.1Accuracy is the reading or value closest to the theoretical value |
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| 28. |
Calculete the mass of given mole 1. 2mole NaCl |
| Answer» | |
| 29. |
If electron is moving with kinetic energy of 2.28*10-25 joule calculate its de broglie wavelength |
| Answer» Is it under root 43.5? | |
| 30. |
Ash trix?????????????????? |
| Answer» What is your question my friend .. | |
| 31. |
How density of ulta purified silicon is measured |
| Answer» | |
| 32. |
Yaar.. Naya hoo koi toh text kro |
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Answer» Hiiiii Yep |
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| 33. |
Bah...full on ignoring |
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| 34. |
what is the lowest value of n which allows g sub shell to exist |
| Answer» 4 | |
| 35. |
Show calculations to prove that energy in nth shell= -2π^me^4/n^2 h^2 = 2.18 × 10^-18/n^2. |
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| 36. |
I am expecting Maths=73-76Sst=74-77Sanskrit=80English=73-78Science=75-78What will be my percentages |
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Answer» I never touched NCERT for maths and science Yaar bhavishya u will get agood job Cbat...actually...??? Then i think u will get above 95 appox...but it also depends upon ur internal marks What is future Oh u r the future of our country |
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| 37. |
What is significant figures |
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Answer» Significant figures means to those digits in a measuring quantity which are reliable ... like .. in 000.01 there are only two significant figures i.e. .01 because initial three zeroes have no use ... O9oooo |
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| 38. |
Number of electron gain or lost during the reaction fe(CN)6+MnO4^- = fe^+3 + CO2 + |
| Answer» Gain 6 loss 3 electron | |
| 39. |
Is gee acid or base |
| Answer» unsaturated fatty acids | |
| 40. |
What is orbitals and quantum numbers and their function? |
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| 41. |
Calculate the number of proton, neutron and electron in 39/19k |
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| 42. |
Is 74% is good in 10th class |
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Answer» Hi! As tanya said , marks wont judge your further journey in studies , so no need of worries if we get somewhat less results , as 10th results cant judge your life and your dreams .... Do hardwork in your coming up studies and do well n gud.All the very best ✌? i believe marks are not that important ,ur knowledge matters a lot.if u consider urself good enough,have faith in ur abilities u actually do not need to think a lot about marks.what has happened forget that and just focus ahead because u have a lot more to do in ur life.so don\'t bother about marks.And its a good score if u trust urself.All the best for ur future✌ |
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| 43. |
Is 81% are good for a student who want to pursue Science stream? |
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Answer» Thanks A single paper of mark sheet can\'t decide ur knoldege and ur future ambition I know a man recently he got only less than 45% In class 12 but now earn 5 lakh / month so past is past Focus for ur future Ok |
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| 44. |
1 M solution of NaNo3 has density 1.25gcm^-3. Calculate its molality. |
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Answer» Please anyone post the solution of this question apne pecent batao |
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| 45. |
why did rutherford modal of atom fail ? |
| Answer» Because he couldn\'t explain the stabiliti of the atom? | |
| 46. |
why electrons do not fall in nucleus? |
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Answer» Centrifugal force of electron counter balance the force of attraction by nucleus, which stabalize the position of electron in it\'s orbit. That\'s why electrons do not fall in nucleus It is because of high nuclear force acting on the electrons under shell levels Due to electrostatic force of attraction |
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| 47. |
Gfuvy |
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Answer» What a name. And I am " IIncomplete lovestory of a boy " . ?? What???? |
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| 48. |
Previous year paper 20 numerical from first chapyer |
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| 49. |
Chum pir motion kya ha |
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| 50. |
Calculate the no. Of moles in 1. 392g of h2so42. 8g of Ca |
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