Saved Bookmarks
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. |
In non medical there are which subject? |
|
Answer» Thank u Maths,physics,chemistry,Hindi/English, physical/music Physics, chemistry and MATHS |
|
| 2. |
define nucleophile |
| Answer» Electron rich species carrying negative charge.Ex:hydroxyl ion | |
| 3. |
Give the shape of following covalent molecules using VSEPR theory.NH3 |
| Answer» Pyramidal | |
| 4. |
Reaction of kolbe electrolysis |
| Answer» | |
| 5. |
What is the enthalpy change for an adiabatic process |
| Answer» 0 or zero. | |
| 6. |
What does periodic table given a name as spdf block |
| Answer» According to the subshell in which the last electron gets filled . Except for helium. | |
| 7. |
After eating amla (phyllantus emblica) or Indian gooseberry ,if we drink water why it tastes sweet?? |
| Answer» | |
| 8. |
What is the effect of (1):addition of h2(2):removal of CO |
| Answer» | |
| 9. |
Propanal and pentan3 one are ozonolysiis product of alkene |
| Answer» | |
| 10. |
Why does the pH of pure water decreases with the increase in temperature? |
|
Answer» And vice versa Ionisation of water which increases H+ concentration as well as OH- concentration is an endothermic process . As temperature decrease concentration of ions decrease so negative log in H+ increase so on increase. Total Ph of pure water is 100 degree and increase 6.14 in temperature |
|
| 11. |
Meyers law |
| Answer» Cp = Cv+ R | |
| 12. |
Melting point of Be is highest among group 2 elements. Why? |
| Answer» | |
| 13. |
what is oxidation number of Fe in Fe3O4 |
|
Answer» Its not 12 12 |
|
| 14. |
Assign reason O2 is paramagnetic |
| Answer» | |
| 15. |
Why do solids have a definite volume |
| Answer» | |
| 16. |
Explain the following with suitable logics.NaNo3 on heating gives NaNo2 while LiNo3 gives Li2O why? |
| Answer» | |
| 17. |
Iind ionisation enthalpy of O atom is more than iind ionisation enthalpy of N atom explain |
| Answer» | |
| 18. |
Out of O+ & O- which is more electron eating and why |
| Answer» O-, Because in case of O+ the configuration is 2p³ which is half filled configuration.... While in O- it has 2p5 configuration which is partially filled configuration.... In term of stability we have: fully filled>half filled>partially filled.... Thus, O- will accept electron to get 2p6 configuration (fully filled orbital).... | |
| 19. |
What is hydration enthalpyl |
| Answer» | |
| 20. |
Write the values of n1 and n2 of hydrogen spectra observed in a visible region |
| Answer» | |
| 21. |
Convert ethene to ethanol |
| Answer» | |
| 22. |
Convert to ethene to ethanol |
| Answer» | |
| 23. |
Write the structural fotmula of 4-chloro-2-pentene. |
|
Answer» C—C=C—C—C | Cl Make a pentane ring add double bond at 2 c and at 4 c add cl |
|
| 24. |
How to passed in compartment exam of chemistry 11 |
| Answer» You should solve all the question of ncert and revise your final exam paper | |
| 25. |
KOH is a strong base than NaOH |
|
Answer» Yes KOH dissociates more oh- ions in aqueous solution Although as metals form more basic oxide in lower positions and K is below Na in table Going down a group metallic or the basic nature increses..... Clera n simple K bieng bigger in size easily losses h with reaction with a acid |
|
| 26. |
Valancy of Na |
|
Answer» +1 1 |
|
| 27. |
What is porous carbon |
| Answer» | |
| 28. |
STATE the first law of thermodyanomic? |
| Answer» ∆Q=∆u+∆w | |
| 29. |
State the first law of thermodynomic |
| Answer» | |
| 30. |
Define 1M solution |
| Answer» | |
| 31. |
O3 molecule has identical atoms even then it is poloa why |
| Answer» | |
| 32. |
Who to learn chemistry in easy way |
| Answer» Study it every day.....that is the easiest way I suppose | |
| 33. |
State Gibb\'s helmholtz |
| Answer» | |
| 34. |
BeO is almost insoluble but BeSo4 is soluble in water explain |
| Answer» | |
| 35. |
What is dielectric constant and is this in class 11 syllabus??? |
| Answer» Its in class 12 and it is electrostatic constant | |
| 36. |
How to claculate CBSE class 11th science passing weightage? |
| Answer» | |
| 37. |
O-Ethylanisole |
| Answer» | |
| 38. |
State Mendlevees periodic law |
|
Answer» The physical and chemical properties of element are their periodic function of their atomic masses The physics and chemical properties of elements are periodic function of their atomic masses. |
|
| 39. |
Give values of n and l for an unpaired electron in Cu(29) |
| Answer» | |
| 40. |
Define buffer capacity and buffer action |
| Answer» Buffer capacity is defined as limit of a solution to add acid and base | |
| 41. |
Why is nitric acid added to sodium extract before adding silver nitrate for testing halogens? |
| Answer» | |
| 42. |
Which are the main gases for ozone depletion |
| Answer» man-made halocarbon refrigerants, solvents, propellants, and foam-blowing agents (chlorofluorocarbon (CFCs), HCFCs, halons), referred to as ozone-depleting substances (ODS) | |
| 43. |
Which two gases are the main cause of ozone depletion |
| Answer» CFC(cloro fluro carbon) . | |
| 44. |
why is electron gain enthalpy of chlorine more effective than fluorine |
| Answer» Because fluorine have smaller size than chlorine. So electron closely packed the nucleus of fluorine then electron to electron repulsive force start appear therefore flurine | |
| 45. |
What is the value of orbital angular momentum for ab electron in 3d orbital |
|
Answer» (2l+1)where l=2 for &d-orbitalSo, 2*2+1=5 5 |
|
| 46. |
How many paired electron on present in copper |
| Answer» 28 | |
| 47. |
Draw the structure of B2H6 |
| Answer» It was not possible to draw the structure at this page. | |
| 48. |
Bromoethane react with zinc in presence of HCL |
| Answer» | |
| 49. |
10ml of a mixture of ch4, c2h4, co2 |
| Answer» | |
| 50. |
Molarity and molaylati questions |
| Answer» | |