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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. |
Given that one mole of n2 at ntp occupies 22.4 l the density of n2 is |
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| 2. |
What is physical state of atom |
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| 3. |
Who is the first robot of world? |
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Answer» I can\'t say my name here because I like tokeep privacy. Sorry ?? But I think you know me and I also know you I think I know you ....? But ur this name confuses me . I met you in this app ( I think ) . Say ur name ?? ??✌? No no no....Girls first ?? ?? _!! No no please first u ??????????? No first you tell your name ? .. ? Girls First ? Tell me ur name Hey I am " Incomplete Lovestory " ?? Hey Ash Trix????????who r u |
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| 4. |
Draw the lewis symbols of elements from 1 to 30 |
| Answer» Helium | |
| 5. |
Which is best between Modern ABC and Pradeep for chemistry? |
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Answer» Modern ABC is good for theory as well as numericals but pardeep is good for numericals only ...??☺☺.. hope it will help you to take your decision .. Modern ABC |
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| 6. |
What is emmission spectra? |
| Answer» When the radiation emitted from some source such as sun or heated rid is passes through directly thriugh prism and then received in the photographic plate, the spectrum obtained is called emmission spectrum | |
| 7. |
What is emmission spectrum |
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Answer» A spectrum by electromagnetic waves through any source Emission spectrum is the spectrum of radiation emitted by a substance that has absorbed energy. |
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| 8. |
How did Heisenberg\'S uncertainity principle prove bohr model wrong |
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Answer» Its a good total yarr...Nothing like bad in it Heyyy.....90% ,, is not a % to commit suicides and all The way u have written the answer,, shows that u may have scored 90+..... Only 90 % but expecting 95+???? Hey..New girl..By the how much have u scored in 10 According to Heisenberg\'s uncertainty principle it is not possible to find accurate value of position and velocity of an atom at a time because to find velocity or position we must give it some energy and due to this energy one of its factor will change at the same time . So ... it is not possible to find position and velocity at a same time but according to Bohr ... it was possible to find the value of position and magnitude but he can\'t explain its reason . That\'s why bohr \'s model proved to be wrong .. ??☺☺.. hope it will help you |
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| 9. |
How to learn elememts of peiodic table |
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Answer» He has recently posted a video on it... U can for PHYSICS WALLAH ON UTUBE FOR IT |
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| 10. |
Important of chemistry |
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Answer» Chemistry has many importance in today\'d Era...Like , it play an essential role in the manufacturing of some importanst drugs like CISPLATIN..IT has a great importance in agriculture too,,like it is used to produce pesticides and all..Similary,,it is used in the production polymers, detergents and many more things of basic needs..In short , its importance is very vast at the same time Life saving Plz read class 8 chemistry book, 3rd page you will get the answer |
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| 11. |
Why electronic energy is negative? |
| Answer» The -ve sign of energy means that the energy of the electron in the atom is lower than the energy at rest of a free electron . A free electron at rest is an electron that is at sufficiently far away from the nucleus and its energy is asumed to be zero . As the electron moves closer to the nucleus due to electrostatic forces , energy is released .so , mathematically , its energy goes on to decrease from zero which leads to its negative value . It also indicates that electron is bound to nucleus and hydrogen is in stable state . | |
| 12. |
what is the advantage of atomic cluster? |
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| 13. |
Define CANDELA |
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Answer» In simple words, candela is the unit of luminous intensity(intensity of light),.Where one candela is the luminous intensity in a given direction of source...(the further defination is given in our NCERT sci. book phy part 1.) Yaaa,,I know that....BUT I WANT ITS DEFINITION It is a basic unit of luminous intensity Ohh......Thank u for your suggestion.. Search on google .You will get answer |
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| 14. |
Electric configuration of actinoides |
| Answer» I think it\'s actinides.. Isn\'t it. | |
| 15. |
What is the mass of one molecule of H2so4 |
| Answer» Total molar mass= Atomic mass of individual elements2*(atomic mass of H) + (atomic mass of S) + 4*(atomic mass of O )= 2*(1) + 32 + 4*(16) = 98 | |
| 16. |
Is any body know about resonance here??? |
| Answer» yes.. I know.. it\'s an institute which prepare candidates for IIT | |
| 17. |
all elements of 2nd period show diagonal relation |
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| 18. |
IS 94.6%95% |
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Answer» Well congratulations for ur score...!! If these r board marks,then it will remain exactly the same as .02% also matters a lot in board exams if you are asking for marks then,, yes after round offing 94.6% it will convert to 95 %.. what..?? |
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| 19. |
I am very confused what to do, jee or neet? How can i solve my confusion? |
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Answer» Take that in which you are good, and that is your interest. What u have taken maths or bio.? |
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| 20. |
What is stereoisomerism |
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| 21. |
Is ADCC Academy good |
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Answer» Yes Yes it is good academy |
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| 22. |
What is average atomic mass ? |
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Answer» Thanks Average atomic mass is the weighted average of the atomic masses of the naturally occurring isotopes of an element. |
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| 23. |
What is permutit process? |
| Answer» Dont know | |
| 24. |
I want to know about all the details of neet what what topics I need to crack neet can you tell me |
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Answer» Ask to google dadu... He will tell you You can search those topics on youtube |
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| 25. |
I have not taken admission yet and i am quite tensed what should i do |
| Answer» So... Your subject is | |
| 26. |
Difference between gram atom and mass of one atom? |
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| 27. |
Difference between moles and molecules? |
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Answer» \t |
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| 28. |
What are the significance of octet rule? |
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| 29. |
Koi quantum numbers ke baare me batao??? |
| Answer» To describe each electron in an atom in different orbitals we need a set of three numbers known as quantum numbers .These are designated as n,l,m and ml | |
| 30. |
What is dilution law |
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| 31. |
All material are matter but all matter are not material |
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Answer» Very big thanks This statement states that solid , liquid and gases are made from atom as all matters contains atoms but material refers for solids so all material are matter but all matter are not material as matter contain liquids and gases . |
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| 32. |
Kis kis ne 11th ki class start shuru kar di. |
| Answer» apni terf se start ker di. | |
| 33. |
Is there anybody from varanasi,?? |
| Answer» no | |
| 34. |
What is mol? |
| Answer» Unit of mole | |
| 35. |
Hiioo |
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| 36. |
Difference between atomic weight and Molecular weight of an element |
| Answer» Atomic weight is weight of atom while molecular is of molecules | |
| 37. |
Is 1st chapter is important. What topics mainy came in exams?? |
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Answer» Very important Yes it is imp |
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| 38. |
Write the name of ten recent nobel prize winner in chemistry and their topics also |
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| 39. |
Calculate no. Of O atoms in 2 kg molecules of H2SO4 |
| Answer» 84.308×10^23 | |
| 40. |
Poac Rule? |
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Answer» Hii harsh bhaii The Principle of Atom Conservation states that the total number of atoms of reactants must equal the number of atoms of products. |
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| 41. |
Is e.c. of cu and zn+ same @ |
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| 42. |
Which is more stable :half filled d orbital or fully filled d orbital? |
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Answer» Fully filled d orbital I think,coz orbitals which r half filled do certainly have unpaired electron or electrons with all the spins oriented in one direction.So certainly they r unstable.Orbitals which r fully filled have all the electrons paired.Hence they r highly stable. I think Google have right answer of it... I think fully filled d orbital bcoz each subshell can contain only 2 electron with opposite spin.so , it will be more stable , i think. I think... Half-filled orbitals are quite stable because of the electrons\' spins being aligned; they resonate and so are stabilised. |
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| 43. |
Arrange na ,cu and zn in increasing electropositive character |
| Answer» Na is the first group and zn and cu are in subsequent groups. Therefore increasing electropositive character is:- Na>cu>zn. ...... | |
| 44. |
The density of 2.03M aq. solution of acetic acid is 1.017g/ml. Calculate the molality of solution |
| Answer» We have , 2.03 moles of acetic acid in 1000 g of solvent. Mass of solution= 1000×1.017 =1017. (Mass= density ×vol.) Mass of solvent =1017-2.03×60 =895.2 Molality= 2.03×1000/60×895.2 = 0.037.. | |
| 45. |
The ionic radii of alkaline earth metals are smaller than those of alkali metals. Why? |
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| 46. |
Calculate the mass of photon with wavelength 3.6Å ? |
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| 47. |
Why in a chemical reaction sulphur is written as s2 not s8? |
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Answer» Sorry ,she He is asking about the diff. Compounds of Sulphur not it\'s E.C As \'s\' has only 1 orbital and we know that 1 orbital can hold a maximum of 2 electrons in it. |
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| 48. |
what mass of HCL react with 2.98 gram of MnO2. |
| Answer» Question is not correct maybe | |
| 49. |
aq. solution of H2so4 is 30% by mass. find molality of solution and mole fraction of H2So4. |
| Answer» 30 g of H2so4 present in 100 g of solvent. ( mass of solvt.=100-30)Molality = wt. of solute ×1000/molecular wt. Of solute × wt. of solvent. = 30 ×1000/98 × 70 =1500/343 M=4.37...2 nd part, No.of moles of H2so4= 30/98=0.30 No.of moles of Water= 100/18=5.55Therefore, Mole fraction= 0.30/0.30+5.55 =0.30/5.85 =0.051.... Ans. | |
| 50. |
In an atom for how many electrons the quantum no. Will be n=3,l=2,m=+2,s=+1/2 |
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Answer» Therfore, total no.of electron =5 Listen , it does\'nt required any solving method. We know, l=2 that means, m = -2,-1,0,+1,+2Given that , m= +2 i.e electron will be placed in (+2 )subshell.Here, S= +1/2 (which shows that electron is unpaired.)Therefore, we put electron to each subshell then we get , 5 electron. i.e. -2=1 electron (+1/2) -1=1 electron (+1/2) 0=1 electron (+1/2) +1=1 electron(+1/2) +2=1 electron(+1/2) So, m= +2 , s=+1/2 given, Total electron in it is 1 . Hope u understand. But how to solve it 5 No. Of electron will be 5. |
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