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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 phenol? |
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| 2. |
Resonating effect |
| Answer» | |
| 3. |
What is electron affinity and how it is calculated |
| Answer» It is energy evolved out when an electron is added to a gaseous isolated atom is called electron affinity. | |
| 4. |
Send all formula of chemistry chapter 2 |
| Answer» | |
| 5. |
Is jee mains from ncert only |
| Answer» No only chemistry is from ncert this subject will definately help you to score in Jee exam.... | |
| 6. |
important topics of ch- states of matter |
| Answer» | |
| 7. |
Electronic cofiguration of copper |
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Answer» By Aufbau principle 1s2 2s2 2p6 3s2 3p6 4s2 3d9And from noble gas element [Ar]4s1 3d10. 2s2 2p6 3s2 4s1 3d10 is the electronic configuration of copper |
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| 8. |
What is Starc effect |
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Answer» Zeeman effect is the deflection of radiation in magnetic field. Stark effect is the deflection of radiations in electric field It\'s a question What is Zeeman effect. |
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| 9. |
When is a reaction favourable... ??? |
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Answer» when it is equally balanced When it is totally balanced Balanced equation |
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| 10. |
in p-atom find out the no. of paired electrons for l=1 and=0 :- |
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| 11. |
How many significant figures are there in 7000 |
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Answer» 1 1 significant figure 4 |
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| 12. |
Find the no. Electron proton and neutron in Al3+ and o2- |
| Answer» Al3-=electrons 10 Protons 13 Neurtron 14O2-= electrons 10 Protons. 8 Neutron 8 | |
| 13. |
hey how is ABC refresher for chemistry |
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Answer» It\'s good Its reaaallllyyy nice... Nice |
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| 14. |
What is resonance structure of NO3 |
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| 15. |
What is atomic spectra? |
| Answer» The spectra which are formed when a light passes through a gas (like hyrogen gas). It is usually called line spectrum. | |
| 16. |
2molar solution has density 2g/ml calculate in terms of mole fraction. |
| Answer» 2molar means 2 mole of solute in 1litre of solution(usually solvent is water) . Since the value of solute is negligible in 1 litre of water. Now density of solution is 2g/ml. So the mass of solution in 1 litre is equal to 2000g . the molar mass of water is 18g/mol. So no. of moles of solution is equal to 2000/18 . So find the mole fraction using this information. | |
| 17. |
What is node and write the types of nodes. |
| Answer» Node:Around the nucleus where the probability of finding an electron is zero.Two types of nodes Angular node Radial node | |
| 18. |
A ball hit by a hockey stick does not appear to be moving in the form of Wave. Why? |
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Answer» Its de brogile wavelength is very small and cannot be detected. due to its bigger size |
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| 19. |
S chand for chemistry is good |
| Answer» Yes | |
| 20. |
What is a dipole movement? |
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Answer» This is caused due to polarisation in covalent bond. The elctrons get sifted towards more electronegative atom. Thus it shows the characteristics of ionic bond. I think that is moment |
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| 21. |
Is anyone from utterpradesh |
| Answer» | |
| 22. |
Calculate number of electron present 2g of magnesium. |
| Answer» No. Electrons in one atom of mg = 12 . so no. Of electrons in 24g of mg = 6.022×10^23 × 12. So in 2g = 6.022×10^23×12/2. | |
| 23. |
Why a Proton is about 2000 times masive than and Electron? |
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Answer» hmm kah to sahi hai bhai tu bhi, apar kim to khaaz pave ee gi is proton k bhi???? Ab yaar bhari hai to hai . Iska kya reason hoga. |
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| 24. |
Did hydrogen and oxygen form water |
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Answer» yes, the reaction that takes place is 2H2+O2--->2H2O Yes Yes |
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| 25. |
What is mole concept and molar mass??? |
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| 26. |
What is the electron dot structure of H3PO4 |
| Answer» | |
| 27. |
Between the bond enthalpy and bond dissociation enthalpy coverage |
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| 28. |
Sir , what is the relations bwt weight and mass |
| Answer» | |
| 29. |
Explain IUPAC naming of hydrocarbons. |
| Answer» unsept ium -usi | |
| 30. |
Explain emission spectrum of hydrogen |
| Answer» The emission spectrum of atomic hydrogen is divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom. | |
| 31. |
Difine boiling. |
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Answer» Boiling\xa0is the rapid vaporisation of a liquid, which occurs when a liquid is heated to its boiling point,\xa0the temperature\xa0at which the vapour pressure\xa0of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. Boiling is defined as a phase transition from the liquid state to the gas state, usually occurring when a liquid is heated to its boiling point. ... Also Known As: Two other words for boiling are ebullition and vaporization. |
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| 32. |
The major density of hellium at n. t. p is 0.1784g/l. What is the weight of 1mole. |
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| 33. |
What will be the volume occupied by 1mole atom of (1)monoxide gas (2)diatomic gas at n. t. p. |
| Answer» | |
| 34. |
Find correct order of EA for Cl, Cl-, F ,F- |
| Answer» Please reply | |
| 35. |
What is atomic radii? |
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Answer» Distance between nucleus to the outer most shell The distance between nucleus and valence shell of an atom is called atomic radii The difference beetween twoatom nuceli that is called atomic radii |
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| 36. |
Find no of moles 20g of he |
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Answer» Formula is GM ➗ atomic mass 20 ➗ 4So answer is 5 As 2g of He has 1 moles then 20g of He equals 10 molesHope it helps? 5moles |
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| 37. |
State any five characteristics of Modern periodic table |
| Answer» 8 periods & 18 groups . Increasing atomic no . Halogens given a correct place . Easy & convenient .Many anomalies related to earlier systems were corrected. | |
| 38. |
the work done by 100 calorie of heat in isothermal expansion of ideal gas is? |
| Answer» | |
| 39. |
Structure of the compound hno2 |
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Answer» TMKC Jj |
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| 40. |
N=2,L=2 |
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Answer» when n=2 so L =n-1 =2-1 =1 so its not possible It is not possible because N is not equal to L |
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| 41. |
N=2,l=1 |
| Answer» This orbital is 2p | |
| 42. |
What is meaning of ebonite rode according to discovery of electron |
| Answer» | |
| 43. |
What do you mean by dalton atomic theory |
| Answer» | |
| 44. |
Max planck quantum theory |
| Answer» M^0L^1T^0 | |
| 45. |
Aufbau principle |
| Answer» Filling of orbitals in increasing order of their energies..... .... .. ? Dr. S.M.. | |
| 46. |
How to find out which element or compound are in a soft drink practically |
| Answer» | |
| 47. |
How to make sugar from saw dust |
| Answer» Finally, we come to the main experience that was promised in the title: getting sugar from sawdust. In a porcelain Cup pour 2-3 tablespoons of wood chips and soak them with water. Add a little water and an equal amount of previously prepared solution of sulfuric acid (1:1), the liquid slurry mix well. | |
| 48. |
What are significant figures |
| Answer» See in book | |
| 49. |
Carbon react to oxygen |
| Answer» To form CO and CO2 | |
| 50. |
What is emprical formula |
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Answer» Emperical formula is a type of formula in which number of atoms in a molecule is represented in simple whole number ratio. Emperical formula is the simplest number of atoms of different elements present in a molecule |
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