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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 are typical elements |
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| 2. |
MOT diagram of O2+ |
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| 3. |
A system gives out 30j of heat and does 75j of work. What is the internal energy change |
| Answer» -115 | |
| 4. |
Write Lewis symbol the following atoms and ions s and s2 |
| Answer» s...... six dots | |
| 5. |
definetion dipole induced dipole force |
| Answer» When a dipolar molecule or atom is induced in an environment of non polar molecule or atom.there is induction in the adjacent atom and as a consequence as a dipole is induced in the adjacent atom or molecule.in this way,a polar atom or molecules attracts electrostatically an atom or molecules with induced dipole. \' dipole induced dipole forces exist between polar molecule of atom having permanent dipole movement and non polar molecule on atom lacking permanent dipole movement. | |
| 6. |
Difference between electronegativity and electrons gain enthalpy |
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| 7. |
How to find the group no of p block elements? |
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Answer» Thanks For p - block elements, GROUP NUMBER is equal to 10 + no. of nS and np electrons |
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| 8. |
What is positron ;nutrino and deutron |
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Answer» Positron is anti particle of electron Isotopes of hydrogen |
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| 9. |
Which school get best school in uttar pradesh by cbse 2018 |
| Answer» | |
| 10. |
What is blackhole |
| Answer» It is form due to old stars ..it is a stage in star\'s age when it gets converted into black hole..... black hole has enormous strength to attract any particle in universe whereas nobody can discover that why is it happens.... To escape from the attraction of black hole a body must have speed of more than speed of light I.e, 3*10^8m/s and any body in universe cannot attain a speed of more than speed of light..... | |
| 11. |
What is blakhole |
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| 12. |
boron and Al two different behavoiur |
| Answer» I think they have anomalous property | |
| 13. |
What is heterocyclic aromatic compounds? |
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| 14. |
Why radius of anion is always more than parent atom |
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Answer» In case of anion,atom gain electron(s),which creates inter electronic repulsion, electronic repulsion , increases the size of anion Lower effecive nuclear charge and increase in no . of shells |
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| 15. |
Difference b/w polarisability and polarising power |
| Answer» | |
| 16. |
In what experiment we oserve that light have two nature.(1) wave nature (2)particle nature |
| Answer» Hello check out Page 31 of your chem textbook fig 2.2 | |
| 17. |
Aq solution ethanol whose density is1.025g/ml and Molarity=2 find molality |
| Answer» | |
| 18. |
From chapter 2 planks quantum theory is deleted or not |
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Answer» Absolutely not it is one of the important concept No it is not deleted yet .... |
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| 19. |
What is enthlpy |
| Answer» its a energy | |
| 20. |
How to find bond angles |
| Answer» | |
| 21. |
What is total number of electron between NO3- and NH4+? |
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Answer» How 5 e- |
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| 22. |
Mass no. Of hydrogen |
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Answer» 1.0078 1.008 1.0086 1.008 |
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| 23. |
Original solution of AsCl3 + dil.HCl + H2S |
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| 24. |
Among alkali metals in aqueous solution, lithium +ion has the lowest mobility why? |
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Answer» That\'s all the answer is ?? Because of small size |
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| 25. |
Is electron affinity and electron gain enthalpy is simillar give reason |
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| 26. |
Why H20 exist in only in water not NH3 if they possess hydrogen bonding |
| Answer» | |
| 27. |
What is the difference between m NaOH and M NaOH ? |
| Answer» m Naoh means atomic mass of Naoh andM Naoh means mole mass | |
| 28. |
What is the geometry of co2 |
| Answer» CO2 molecule has linear geometry | |
| 29. |
Explain why Pz Pz overlapping is not possible but Px Px overlapping is possible? |
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| 30. |
Which orbit is nearer to the nucleus of an atom |
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Answer» k orbit S is an orbital\'s subshell. K orbit is nearer to nucleus s orbit |
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| 31. |
100ml of10M heck is diluted with water to 2L. Find the molarity |
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| 32. |
What is the electronic configuration of chromiu. |
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Answer» hello guys 1s2 2s2 2p6 3s2 3p6 4s1 3d5 |
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| 33. |
Give the electronic configuration of shell S, p, d, f |
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| 34. |
Differentiate between homolysis and hetrolysis |
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| 35. |
What is the difference between valency and oxidation number |
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Answer» Valency refers to the combining capacity of an element, whereas oxidation state defines the valency along with the nature of the elements.Example :- valency of oxygen is 2Whereas oxidation state of oxygen is (-2)The ( - ) indicates the non-metallic nature of oxygen Good question bhai pr pta nhi |
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| 36. |
Can we change any metal into gold by changing its electrons number??? |
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Answer» Ejection of an electron from mercury atom turns it into gold Yeah when we extract one electron from mercury it is turn into gold |
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| 37. |
inorganic benzene is polar or not why |
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Answer» why Non polar |
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| 38. |
What is the lewis structure of H2SO4 |
| Answer» | |
| 39. |
What in viscocity |
| Answer» The internal resistance provided by liquid layer to the flow possessed by liquid | |
| 40. |
Dipole movement in hf molecule |
| Answer» towards fluorine | |
| 41. |
What is electronegativity?How can we identify which atom is more electronegative than other |
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Answer» it is a property of an atom to attract a shared pair of electron towards itself.simply if we know the trend of electronegativity;along the period and down the group in periodic table ; we can identify The ability to accept electron is called electronegativity |
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| 42. |
What were Deberiener Traid |
| Answer» He proposed sets of three elements called "triads" The atomic mass of the middle element is the average atomic mass of the other two elements of the triads.For example; Element : Li. Na. K AtomicMass. : 7. 23. 39Average Mass. : 23. | |
| 43. |
Why there is a need of hybridisation? |
| Answer» There is a need of hybridisation because hybridised orbitals form more stable bond | |
| 44. |
Out of nacl and mgo which one is harder and why |
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Answer» Because of high electrostatic force of attraction in Nacl Reason NaCl is hard |
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| 45. |
Explain the term elctrivalency |
| Answer» The number of electrons lost or gained by an element to achieve nearest noble gas configuration is called electrovalency of that atom.For example: Lithium has one valence electron in its valence shell.On losing that electron, it acquires configuration of He and forms Li+.Therefore its electrovalency is 1. | |
| 46. |
What is polar molecule |
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Answer» Polar molecule it\'s polarity or polar molecule |
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| 47. |
Why physics us so hard |
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Answer» It is not hard.We just need understand this Agar iska answer mile to batana |
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| 48. |
How does odd electron molecule affect bonding |
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Answer» Thank you The central atom unable to complete it\'s octet rule and the surrounding atom can not form bond pair |
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| 49. |
Why do we need to study molecular orbit theory inspite of valence bond theory? |
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| 50. |
Value of 1 AU |
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Answer» 1.5 ×10 raise to power 5 metre 1.496 ×10^(11) m in m or km |
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