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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 limiting reagents? Give explanation in easy language? |
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Answer» It is the minimum amount of substance which can be completely consumed in a reaction The limiting reagent in a chemical reaction is the substance that is totally consumed when the reaction is complete the amount of produce formed is a limiting reagent The thing or substance you add during reaction to decrease it\'s reactojn |
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| 2. |
Methane cannot be prepared by kolbe electrolytic method ? |
| Answer» Kolbe electrolytic method is situable for preparation of symmetrical alkane that is alkane contains even number of carbons . So methane has only one carbon hence it cannot be prepared by kolbe electrolytic method | |
| 3. |
What is Wavefunction and what is its importance? |
| Answer» The function which defines the motion of wave mathematically It\'s importance is by a wave function we can find velocity, acceleration, direction of movement etc | |
| 4. |
what is cyclick hydro carbon |
| Answer» In which one or more series of atom are join to form a cyclic ring | |
| 5. |
Name a suitabe technique for the separation of components of mixture of calcium sulphate and comphor |
| Answer» Sublimation | |
| 6. |
What is anti-markovnikov rule? |
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Answer» Thanks Acc to this rule when peroxide is present then Br goes to carbon atom having more H atom |
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| 7. |
What is meant by B O D |
| Answer» This stands for biological oxygen demand. This is the name given to oxygen demand of organisms mainly aquatic | |
| 8. |
Why is an organic compound fised with metallic sodium to test the presence of N , S and halogens |
| Answer» | |
| 9. |
Name a species which will be isoelectric with My 2+ |
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Answer» O2-, F- It\'s Mg 2+ |
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| 10. |
A solution of NaCo3 is alkali e |
| Answer» Not alkali e it\'s alkaline | |
| 11. |
Potassium carbonate cannot prepared by solvays process. Give reason |
| Answer» Because it gets dissolve in NH4Cl | |
| 12. |
In what way(s) was Green Chemistry significant for the synthesis of Chemicals? |
| Answer» Because she know the importance of education | |
| 13. |
How to primary suffix in organic compound |
| Answer» | |
| 14. |
What is ionic equilibrium |
| Answer» Ionic Equilibrium is equilibrium established between the UN ionized molecule and the ions in a solution of weak electrolytes | |
| 15. |
Why the atmosphere act as a blanket |
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Answer» Bcz the earth feel cold so atmoshphere act as blanket Follow me on fb jp.indolia.7 Atmosphere act as a blanket because there are many gases in atmosphere which makes a thick sheet of protection which act as a blanket ?? |
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| 16. |
Examples of strong alkali metals |
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Answer» Potassium and rubidium These are very soft metals but highly reactive Lithium Sodium Potassium and rubidium |
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| 17. |
Difference b/work function an probability density |
| Answer» | |
| 18. |
Why real gas deviate from from ideal behaviour |
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Answer» Hope it helps Actually there is no gas present really which follows ideal gas behaviour....it is hypothetical that there is an ideal gas which will follow all the gas laws at all temperature and pressure. So real gas are the actual gases present in our atmosphere which follow Ideal behaviour only at low pressure and high temperature |
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| 19. |
How to calculate marks we need in final exams to pass if we failed in three test of class 11 |
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Answer» This is only idea U have to take above 35%in each subject bio ,. Physics,and chemistry Are you fool This is not a question |
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| 20. |
Difference between shielding effect and penetration effect |
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Answer» It work as a screen it reduces the attractive force b/w nucleus & electron Penetration power means the ability of an orbital to attract an electron and this effect is called penetration effect. Shielding effect can be defined as the reduction in the effective nuclear charge on electron cloud due to a difference in the attraction forces of electrons in the nucleus. |
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| 21. |
What do you mean tetravalence of carbon |
| Answer» A carbon atom completes its octet by sharing its valence electron with other atoms as a result the carbon atom forms covalent bond by sharing Valence Electrons with each other this is known as tetravalency of carbon | |
| 22. |
increasing size of Be2+,Cl-,S2-,Na+,Mg2+,Br- |
| Answer» | |
| 23. |
What is Substitution Rxn? |
| Answer» Substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one functional group in a chemical compound is replaced by another functional group. | |
| 24. |
Kisi ke pas last year ke paper hai chemistry ya physics ke hai to mujhe bolo plz |
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Answer» Mene abi new I\'d bni h isliye abi only 3 pic upload ki h jisme se ek meri selfi h scool dress me Mujhe kaise ptA chlega ki tumhari pic kon c h Not anshul sharma Anshika sharma Anshul sharma Tumhari I\'d kis nam se h Meri selfi h Mohit Singh Meri I\'d ka nam h Tum kV jatogh se ho Ok Mere pass to ek hi idea h or vo h fb pe pics send kr skti ho K v se hu Tum kon se school m ho Pr kaise Mujhe do gi plz anshika I have Nhi h |
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| 25. |
Explain Sandmeyers reaction. |
| Answer» It is a chemical reaction used to synthesise aryl halides from aryl diazonium salt | |
| 26. |
What is water gas? |
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Answer» Water gas also known as syngas or synthesis gas ,is a mixture of co and h2, it is known as syngas as it is used in the synthesis of certain organic compounds such as methanol etc. Formation of water gas CH4+H2O ------------->CO +2H2Hope it will help ? Carbon monoxide+ hydrogen gas |
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| 27. |
Is hydrogen ion the smallest positive ion..? |
| Answer» yes | |
| 28. |
What do you understand by the term Photoelectric effect. Define threshold frequency. |
| Answer» Phenenon of ejection of electron from metal surface when light of suitable frequency fall on it | |
| 29. |
Why fullerenes are considered to be purest form of carbon?? |
| Answer» The\xa0purest form of carbon\xa0is\xa0fullerenes\xa0since they have a smooth structure without dangling bonds.\xa0Fullerenes\xa0are cage-like molecule. The molecule C60\xa0has a soccer ball-like shape\xa0called\xa0Buckminsterfullerene. | |
| 30. |
What is VSEPR theory? |
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Answer» Valence shell electron pair repulsion theory electron pairs surrounding the central atom repel one another and go so far apart from one another that there are no further repulsions btw them.☺☺☺ In simple words this theory provides a simple procedure to predict the shapes of covalent molecules. |
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| 31. |
H2O2+Fe2 it\'s gives Fe+3+ H2O |
| Answer» | |
| 32. |
define mole |
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Answer» Given mass / atomic mass Counting unit for atoms molecules or ions a |
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| 33. |
Difference between solubility product and ionic product? |
| Answer» Both ionic product and solubility product represent the product of the concentrations of the ions in the solution. The term ionic product has a broad meaning since, it is applicable to all types of solutions, either unsaturated or saturated and varies accordingly.On the other hand, the term solubility product is applied only to a saturated solution in which there exists a dynamic equilibrium between the undissolved salt and the ions present in solution. Thus the solubility product is in fact the ionic product for a saturated solution at a constant temperature. | |
| 34. |
Which h |
| Answer» | |
| 35. |
Which types of reaction in presence mg |
| Answer» | |
| 36. |
Conversion of heptanoic acid to para chloro tolvene |
| Answer» | |
| 37. |
What\'s entropy? |
| Answer» It is a measure of the degree of disorder or randomness present in the system . Eg- the particles in solid are not in random motion while in gases they are . Therefore the entropy of gases is greater than solids . | |
| 38. |
Write electronic configration of Mn4+ Fe3+ |
| Answer» | |
| 39. |
Which substance used to exhausting fire |
| Answer» CO2 | |
| 40. |
Who is alchemist |
| Answer» | |
| 41. |
What are hybridization states of each carbo atomCH=C=O, CH3CH=CH2 |
| Answer» | |
| 42. |
What is the formula of heavy water? |
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Answer» D2O Deuterium oxide d2o D2O D2O D2O |
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| 43. |
Comments on homolatic and hetrolatic fission |
| Answer» | |
| 44. |
Why Abrasive of dimonds are made |
| Answer» Diamond being a hard substance when place between moving parts of a machinery or elsewhere works as a good abrasive providing fiction does diamond is used as abrasive | |
| 45. |
Proton |
| Answer» | |
| 46. |
Structure of 3-nitrocyclohexene |
| Answer» | |
| 47. |
Why alkene is more reactive than alkane |
| Answer» Because alkens are unsaturated. | |
| 48. |
Cooh |
| Answer» Carboxylic | |
| 49. |
What is Boyle\'s temperature |
| Answer» | |
| 50. |
The wave no. of light is 450cm calculate wavelength in nanometers and frequency of light |
| Answer» | |