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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. |
Bod |
| Answer» | |
| 2. |
Full form of bod |
| Answer» Biochemical oxygen demand | |
| 3. |
What is adiabatic condition |
| Answer» | |
| 4. |
Ionization energy |
| Answer» The amount of energy required to remove electron from isolated state in ground state. | |
| 5. |
The pH of a solution obtained by mixing 100ml of .2M ch3cooh with100 ml of .2 Naoh would be |
| Answer» | |
| 6. |
Ncrt answer |
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| 7. |
How many electrons are there in NO3- |
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Answer» 32 electrons 32 electrons and 24 valance electrons 26 electron 12 electrons |
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| 8. |
mandleve atomic theory |
| Answer» | |
| 9. |
Explain MOT |
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| 10. |
Reciprocal proportion |
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Answer» Ratio of element A and B combined with third element C is either same or multiple of whole number ratio of the element A and B . Ratio of element A and B combined withthitd element |
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| 11. |
What is the value of Ryberg constant |
| Answer» 1.09677×10^7m | |
| 12. |
Oxidant |
| Answer» These are the substances which supplies oxygen or electronegative elements and remove hydrogen or electopositive elements are known as oxidising agent or oxidant.Ex. Mg + O2 -----> Mgo O2 is an oxidising agent .Mgo is oxidised . | |
| 13. |
Sir in ncert ch- 5 . In question no. 6 |
| Answer» | |
| 14. |
What is the IUPAC no. Of 195 |
| Answer» unennpentium if discovered | |
| 15. |
What is dipole movement? |
| Answer» A dipole moment \u200bis a measurement of the separation of two opposite electrical charges. Dipole moments are a vector quantity.Dipole moment ( μ ) is the measure of net molecular polarity, which is the magnitude of the charge Q at either end of the molecular dipole times the distance r between the charges.μ=Q×r Dipole moments tell us about the charge separation in a molecule. The larger the difference in electro negativities of bonded atoms, the larger the dipole moment.For example, NaCl has the highest dipole moment because it has an ionic bond (i.e. highest charge separation). | |
| 16. |
Given the density of water in 1gmL-1.what is the density on kgm-3? |
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Answer» I am not sure about it. Can anyone confirm is it correct or not plz...... 1000kg/m^3 |
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| 17. |
What are d generate orbitals ? |
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Answer» Orbitals having equal energy are known as degenerated orbitals Orbitals of same subshell have same energy are known as degenerate orbitals. |
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| 18. |
N factor of boric acid |
| Answer» 1 | |
| 19. |
To what extent do the chemical reactions proceed? |
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| 20. |
Why is alkene considered as weaken molecule than alkane? |
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| 21. |
Give limitation of planks quantum theory |
| Answer» | |
| 22. |
Out of carbon dioxide and Helium which gas have higher value of Van der Waals constant b |
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| 23. |
Co2,ch4 high bond strength |
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| 24. |
What is ortho hydrogen |
| Answer» According to spin hydrogen divided into two forms ortho and para hydrogen the hydrogen with same spin called ortho and with opposite spin called para hydrogen | |
| 25. |
Pauli exclusion |
| Answer» | |
| 26. |
Why axial bonds greater than equatorial bonds? |
| Answer» Because of more repulsion | |
| 27. |
Calculate 5*10-³ +2*10-2 (scientific notation) |
| Answer» 2.5×10^-2 | |
| 28. |
What is the constant condition? |
| Answer» A quantity that is unknown but assumed to have a fixed value in specified mathematical context | |
| 29. |
What is conservation of mass |
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Answer» It states that matter can neither be created nor be destroyed During any chemical or physical Change the Mass of reactant is equal to the Mass of product. |
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| 30. |
Hybridisation in IOX3 |
| Answer» sp3d | |
| 31. |
what is the limitation of vsepr theory with example |
| Answer» | |
| 32. |
Net dipole moment of SF2 is 0 or non 0 |
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Answer» 0 Yes it\'s 0...... It is non 0 I am not sure I\'m confused I think about it 0, because SF2 has tetrahedral shape |
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| 33. |
Calculate the wavelength of 3rd spectral line of Balmer series for H atom? |
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| 34. |
What is wave mechanics |
| Answer» | |
| 35. |
Is it really necessary that element having high electronegativity makes stronger bond? |
| Answer» | |
| 36. |
What is the velocity of hydrogen atom in the third orbit of bohrs model |
| Answer» | |
| 37. |
what is electronegetivity |
| Answer» A qualitative measure of the ability of an atom in a chemical compound to attract shared electron to itself is called electronegativity | |
| 38. |
What is Millikan\'s oil drop method |
| Answer» Oil drop experiment was performed originally by the American physicist Robert A. Millikan in 1909. It measures the size of charge on a single electron. Apparatus consist of an atomizer, which helps to spray tiny droplets. By means of a short focal distance telescope, the droplets can be viewed by telescope. | |
| 39. |
Vapour density of water is 1g cm cube then the volume occupied by one molecule of warer is |
| Answer» | |
| 40. |
Which charge present in O2 ? |
| Answer» _2 | |
| 41. |
Type of intermolecular force exist in Cl2&CCl4 |
| Answer» | |
| 42. |
Using PV =nRT. show that at given temperature, density of gas is proportional to gas pressure P |
| Answer» Pv=nRT, from this equation n/v=P/RT, here n is the number of mole and n=given mass/molar mass"n=m/M putting it in m/Mv=P/RT here m/v=density (d), d/M=P/RT, d=MP/RT here M/RT is constant, d=(M/RT) P, d is directly proportional to pressure | |
| 43. |
Assumption of valence bond theory |
| Answer» | |
| 44. |
Explain hybridization XEF2 |
| Answer» Sp3d hybridisation | |
| 45. |
How to solve numerical in short time |
| Answer» | |
| 46. |
How can we separate if we mix powder of sugar and salt |
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Answer» How can we know it is sugar or salt Use fine pores strainer ( छलनी) it is a physical method |
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| 47. |
What is kossel concept |
| Answer» | |
| 48. |
Si unit of viscosity |
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Answer» Nm s pa s Poise or gram per can second PoiseGram per cm second |
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| 49. |
Electrovalency |
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Answer» Ionic not ionut Valency of element having ionut character |
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| 50. |
What is heteronuclear atom |
| Answer» | |