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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. |
Buffer solution |
| Answer» Solution which resist to change their pH on adding some small acid or base. | |
| 2. |
Find molar mass of BaCl2 |
| Answer» 208.23g/mol | |
| 3. |
Find molar mass of ba2cl |
| Answer» 310.107 | |
| 4. |
Hot tea is sipped in a saucer why |
| Answer» Bcoz of the rate of evaporation increases with an increase of surface area in the case of saucer as compared to the cup. so we are able to sip hot tea faster from a saucer rather than a cup . | |
| 5. |
as the balloon goes up in air its size increase why |
| Answer» | |
| 6. |
How does a reaction effect |
| Answer» | |
| 7. |
Why electron gain enthalpy of F is less than CL |
| Answer» | |
| 8. |
Pls ; tell me about how we use balance redox reaction |
| Answer» Sée firstly pût charge of all éléments Then find 2 élément doing oxydation ans 2doing rédaction then seprate thé charge of ox. Red Doing élément .Now interchange thé charge ans balance | |
| 9. |
Why half filled and full filled electronic configuration are more stable |
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Answer» 1. Symmetry2. Energy exchange Because they have more symmetric arrangement of electronic configuration |
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| 10. |
Why phenol is Ortho and PEra directing |
| Answer» | |
| 11. |
What is a orbital |
| Answer» Is a place where maximum electron can be found | |
| 12. |
What us S. H. E.? |
| Answer» | |
| 13. |
Imp topics of chapter hydrogen of chemistry |
| Answer» Preparation of Syn Gas,Water gas shift reaction and other Reactions | |
| 14. |
Sodium reacts with halloalkanes in the presence of dry ether explain |
| Answer» | |
| 15. |
Give chemical test to distinguish between ethene and ethane |
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Answer» Ammonical silver nitrateEthane:- no reactionEthene:- white precipitate Bromine water test |
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| 16. |
Define Van der waal\'s forces? |
| Answer» Teri aisi ki taisi | |
| 17. |
Ddv |
| Answer» Matlab | |
| 18. |
All the Best to all my fans for tomorrow Exam..... |
| Answer» | |
| 19. |
Borax is heated strongly |
| Answer» | |
| 20. |
What are cycloalkane s |
| Answer» The cyclic compounds having enclosed structure. | |
| 21. |
KO2 is paramagnatic |
| Answer» | |
| 22. |
How to do oxidation number method |
| Answer» | |
| 23. |
Find the pH of 10 raise to power minus 7molar NaOH solution? |
| Answer» It is npt exactly 7 but slightly higher than 7 like 7.0001 or something like this. | |
| 24. |
Notes on Daniel cell |
| Answer» | |
| 25. |
Why liquids diffuse easily as compared to gas? |
| Answer» Gas molecules diffuse faster not liquid bcz molecules of liquid are compactly packed as compared to molecules of gas..!! | |
| 26. |
Why melody is so and so chocolaty ????? |
|
Answer» it would be helpful for timepass in examination???? Very interesting question and very important in exam! |
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| 27. |
What is heavy hydrogen |
| Answer» Heavy hydrogen is also known as deuterium | |
| 28. |
What are the necessary conditions for any substance to be aromatic |
|
Answer» It should be in conjugationIt should (4n+2)π electronsIt should be cyclic It must have benzene ring It must follow the huckl\'s rule |
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| 29. |
Benzene into benjoic acid |
| Answer» First,by Friedel craft\'s reactionBenzene convert into toluene andSecondly toluene is converted into benzoic acidin the presence of potassium permanganate byEtard\'s reaction. | |
| 30. |
Important topics of chapter 1 class11 chemistry |
| Answer» All laws like law of combination,multiple proportion etcStoichiometry, limiting reagentMole fraction, molality, molarityNcert text questions and examples | |
| 31. |
What is octet rule ?explain any three point for contradiction of octet rule |
|
Answer» *aufbau principle It states that every atom wants to stable by completing its outermost shell according to aur hai principleThey can do so in three waysBy gaining electron By sharing elaectronBy losing electronIt\'s contradiction areIt doesn\'t work for molecule having odd electronsIt doesn\'t work for group 13 elementsIt violates aur hai expansion that is some elements have more than 8 electrons 8 the outer most orbit |
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| 32. |
Description of vander wal\'s equation and constant |
| Answer» | |
| 33. |
Define classic smog. |
| Answer» It is the mixture of smoke,fog and sulphur dioxide. | |
| 34. |
Important question of organic chemistry :some basic principle and techniques |
| Answer» | |
| 35. |
Molar mass of CO2 |
| Answer» 44g | |
| 36. |
which chapters are most important in class11 chemistry |
|
Answer» chemical bonding and molecular structure Organic also Hydrocarbon |
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| 37. |
Bernouli theorm |
| Answer» It states that for an ideal fluid the total sum of pressure energy,kinetic energy and potential energy remains constant | |
| 38. |
Differentiate between conduction,convection and radiation |
| Answer» | |
| 39. |
What is syn gas |
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Answer» Mixture of CO And H2 CO+H2 |
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| 40. |
Electron gain enthalpy explain? |
|
Answer» The the energy released when we added an when we added an electron in isolated gaseous atom see the chapter no chemical bonding and read carefully and understand |
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| 41. |
What is borax bead test |
| Answer» By borax bead test we can determine the unknown transition metal using platinum wire | |
| 42. |
Plz sir give me sllyabus. Mujhe ye nhi aata ki kis chapter ko Jada read karna hai. So, plz help me. |
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Answer» Focus on physics In chemistry focus on organicIn physics waves,oscillation,thermodynamic,KTG,thermal property of matter,system of prticles and kinematics and W.E.PIn bio physiology Chemistry Subject pls |
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| 43. |
Bf3 does not have proton but still acts as an acid and reacts with nh3. Why is it so |
| Answer» | |
| 44. |
Describe hybridization in sf4. |
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Answer» sp3d sp3d2 Sp³ |
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| 45. |
Why francium is not largest atom? |
| Answer» Because it is radioactive | |
| 46. |
Define hydrogen bond.Write it\'s applications. |
| Answer» | |
| 47. |
Softening of water |
| Answer» | |
| 48. |
A gas occupies 22.4L in NTP .Calculate the volume occupies it at 30C and 665 mm pressure |
| Answer» | |
| 49. |
How to compare resonance energy of Molecules? |
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Answer» Thanks Komal To compare the resonace energy you must have to find the difference of energies.between the hybrid structure and the resonating structures |
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| 50. |
Why do use only H+ion in balancing the equation in acidic medium |
| Answer» | |