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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. |
Spin quantum numbe |
| Answer» It represent the spin of electron that is clockwise (+1/2) & anticlockwise (-1/2) . | |
| 2. |
Magnetic quantum number |
| Answer» | |
| 3. |
Paul\'s exclusion Principle |
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Answer» If first three quantum no. are same than the last quantum no. was different that is spin quantum no. According to this,No two electron in an atom can have all four quantum number same |
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| 4. |
How is viscosity related to friction?Directly or inversely |
| Answer» | |
| 5. |
Define solubility product write solubility product expression in term of molar solubility for fecl3 |
| Answer» | |
| 6. |
What is AZT?to which use is it being put? |
| Answer» Azidothymidine. Used in cancer therapy | |
| 7. |
What is ostwald\'s dilution law? |
| Answer» | |
| 8. |
Out of n hexane and ethyne which is more acidic and why? |
| Answer» | |
| 9. |
Compare the relative Stabilities of O2- and O2+ and common on their magnetic behaviour. |
| Answer» G | |
| 10. |
Out of mgo and licl , which has higher lattice enthalpy ? |
| Answer» | |
| 11. |
Aufbau\'s rule |
| Answer» According to this , an electron will first occupy the orbital that has the lowest energy. | |
| 12. |
What is grignard reagent. How can propane made by grignard |
| Answer» RMgX is Grignard\'s reagent where R is alkyl group, Mg is Magnesium, X is halogen. If we react CH3CH2CH2MgX with\u200b H2O then it will form CH3CH2CH3 and OH(Mg)X. | |
| 13. |
What does the property of molecules of real gases is indicated by van der Waals constant \'a\' |
| Answer» | |
| 14. |
Draw structure of 2-methylhexane. |
| Answer» | |
| 15. |
What is aromatic hydrocarbon |
| Answer» Aromatic hydrocarbons follows huckel \'s rule, completed delocalized pie electrons and planer. | |
| 16. |
What is the pH of HCL in 0.01mol solutions |
| Answer» | |
| 17. |
What does NaBH4+H2O2 give? |
| Answer» | |
| 18. |
Difference between positive and negative catalyst or inhibitor? |
| Answer» Positive catalyst means basic catalyst. Negative catalyst means acid catalyst | |
| 19. |
What is Miniscus? |
| Answer» | |
| 20. |
What is meniscus? |
| Answer» | |
| 21. |
Free expansion |
| Answer» | |
| 22. |
What would be the SI unit for pressure |
| Answer» Pascal | |
| 23. |
Mno4 |
| Answer» | |
| 24. |
What do you mean by water of crystallization? |
| Answer» In chemistry, water of crystallization or water of hydration or crystallization water is water that occurs inside crystals. Water is often incorporated in the formation of crystals from aqueous solutions. In some contexts, water of crystallization is the total weight of water in a substance at a given temperature and is mostly present in a definite (stoichiometric) ratio. Classically, "water of crystallization" refers to water that is found in the crystalline framework of a metal complex or a salt, which is not directly bonded to the metal cation.Upon crystallization from water or moist solvents, many compounds incorporate water molecules in their crystalline frameworks. Water of crystallization can generally be removed by heating a sample but the crystalline properties are often lost. For example, in the case of sodium chloride, the dihydrate is unstable at room temperature. | |
| 25. |
pH of a 1.0×10^-8 HCl sol |
| Answer» As in water H+ ions has a concentration of 10power - 7 but when we consider most of the cases we ignore it as it is negligible when compared with the given H+ ion concentration Now, solution is H+ concentration is not 10power - 8 but it is 10power - 8 + 10power - 7 and then use ph=-log(H+ concentration) thats all u will get the answer Here we considered 10power - 7 due to the reason that 10power - 7 is comparable with 10power - 8 | |
| 26. |
beriliyam sulphate is soluble in water but barium sulphate is insoluble and why |
| Answer» Due to high lattice enthalpy and low hydration energy of barium sulphate it is insoluble in water.?? | |
| 27. |
Deeffects of Mendeleev periodic table |
| Answer» | |
| 28. |
What is the effect of decreasing temperature on the direction of reaction. Why? |
| Answer» | |
| 29. |
Explain banana bond |
| Answer» It is formed in sidewise overlapping when pie bond is formed. | |
| 30. |
Can anyone please explain me dumas method ?? |
| Answer» This method helps for doing quantitative analysis. If we want to know how much nitrogen is in a given organic compound we need to use this formula - % of N = 28/22400 * volume of N2 * NTP * 100/weight of organic compound This is Duma\'s method | |
| 31. |
What is limiting reagent? |
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Answer» That agent which limit the rate of reaction. The reactant which is present in very less amount and gets consumed during the course of reaction and stops further reaction is called limiting reagent. Or, The reaction which gets consumed, limits the amount of product formed is called limiting reagent. |
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| 32. |
What is B-F Bond length in BF3 is smaller than the expected value? |
| Answer» Due to the presence of a lone pair | |
| 33. |
How dose DDT have 29 sigma bonds |
| Answer» | |
| 34. |
Write the Lewis dot structure of co32 - |
| Answer» | |
| 35. |
Why is freshly prepared saturated solution of FeSO4 used in the lassaigne\'s test 4 nitrogen ? |
| Answer» | |
| 36. |
Define electomeric effect |
| Answer» | |
| 37. |
If i need in chemistry 17no. But i fail so how many no. Needed in compartment exam? |
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Answer» So y did u mentioned ur class as 11?? I\'m a kvian but board going 12th :) R u kvian??? Bhai tu pehle se hi Fail ki soch kr betha hai Lol...... |
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| 38. |
How to find quantum number |
| Answer» Which quantum no.? It has 4 types | |
| 39. |
Producer gas |
| Answer» | |
| 40. |
State hiesenberg uncertainty principle |
| Answer» It is not possible simultaneously to determine position and momentum of electron in a given atom with accuracy | |
| 41. |
Define diamond briefly |
| Answer» | |
| 42. |
Tommaro we have chemistry paper |
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Answer» Paper bath mushkil tha All the Best dude |
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| 43. |
Ionization energy of na+ is higher than ne+ although they have same electronic configuration |
| Answer» | |
| 44. |
Write reason behind analogous behaviour of 2nd period elements |
| Answer» Due to small in sizeHigh ionisation enthalpy | |
| 45. |
Define surface tension of liquid.what is it\'s S I. Unit? |
| Answer» The tendency of a liquid to acquired minimum surface area is called surface tension.SI unit N/m | |
| 46. |
Give a chemical equation for Wurtz reaction |
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Answer» 2CH3Br+2Na => CH3CH3 + 2NaBr When 2molecule of alkyl halide react with Na metals in the presence of dry ether then alkane is formed |
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| 47. |
What should we do now after exam Do competition ptactice |
| Answer» Q.puchkar khud ne hi answer fe diya...lol | |
| 48. |
Assign the oxidation number of mn in k2Mno4 |
| Answer» +6 | |
| 49. |
Benzene - CH2 - CH2 - CH = CH2 ISKI NAMING BATANA KOI |
| Answer» | |
| 50. |
Exam over |
| Answer» Is this a ques | |