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. |
Hydrolysis of borax. |
| Answer» Gives NAOH and H3BO3 which is alkaline sol | |
| 2. |
What is the Oxidation number in NaS4O6 |
| Answer» 11/4 | |
| 3. |
blue print of chemistry |
| Answer» | |
| 4. |
Structure of diborane |
| Answer» | |
| 5. |
What are anomalous properties of second period elements? |
| Answer» difference in properties from their respective groups | |
| 6. |
What is the iupac name of the element having atomic no. 110 |
|
Answer» Ununnillium Darmstadtium |
|
| 7. |
Work done in adiabatic process |
|
Answer» Thanx simran and bhupendra nR (T1-T2)/gamma -1 0 |
|
| 8. |
Describ estimations of halogens by carius method |
| Answer» | |
| 9. |
Anshika madam apne paper ni Dene h na |
|
Answer» Ye app anshika se bolo oske pass h Mujhe b chahiye paper |
|
| 10. |
Potassium carbonate cannot be prepared by solvay process.Why? |
|
Answer» Because KHCO3 obtained in carbonation tower is water soluble which cannot pe obtained as ppt. Because if we use potaasiun it will form k2SO4 which is soluble in water |
|
| 11. |
Reason of order of stability of carbocation |
| Answer» | |
| 12. |
hy ionisation enthalpy of H is more than Na |
|
Answer» Ionisation enthalpy decreases down the group. That\'s why H has more ionisation enthalpy than Na (as we know H is placed before Na in group 1 i.e alkali metals). Hydrogen have more ionisation enthalpy than Sodium because the size of Hydrogen is comparitively small than Sodium so there needs greater ionisation enthalpy for the break down of Hydrogen atom than Sodium atom. |
|
| 13. |
what is inuctive inffect |
| Answer» The polarity thus produced in an organic compound by the shifting of sigma electrons towards more electronegative atom or group,is called inductive effect . | |
| 14. |
Ice floats over Water why |
| Answer» Its because the density of ice is less than that of water. | |
| 15. |
How nomenclature is done |
|
Answer» Sure sir Watch videos on youtube or not waste much time in nomenclature |
|
| 16. |
Last year question? paper and with answers |
| Answer» | |
| 17. |
explain the important compounds of carbon along with its properties and uses |
| Answer» | |
| 18. |
Why can\'t we write 3-Methylbutane ? |
| Answer» According to lowest locant rule,the branch should be given lowest possible location or no. So the correct name will be 2- methyl butane | |
| 19. |
How can gain more marks in chemistry |
|
Answer» Ncert solution solve kr lo By studying ??? |
|
| 20. |
Describe bhor atomic model |
| Answer» | |
| 21. |
Steps for titration |
| Answer» | |
| 22. |
Hund rule |
| Answer» | |
| 23. |
Is Cl- is a nucleophile or not |
| Answer» Yes,because all anions behaves as a nucleophile like NH2- or OH- | |
| 24. |
I want solutions for last year papers where i can get these? |
| Answer» | |
| 25. |
What happens when calcium carbide is treated with water |
| Answer» Ethyne is FormedCaC2+ 2H2O-> C2H2+ Ca(OH)2 | |
| 26. |
Types of quantom numbers |
| Answer» There are 4 types of quantum no. :1. Principle quantum no. ( it is simply the value of \'n\' i.e it identifies the shell )2. Azimuthal quantum no. ( it is denoted by \'l\'= 0 to n-1 )3. Magnetic quantum no. ( it is denoted by \'m\' = - l to + l4. Spin quantum no. ( it gives the spin of electrons ) | |
| 27. |
Write the sign in terms of delta H and delta S when a reaction would be always spontaneous. |
| Answer» Either both negative or delta s negative..delta h positive | |
| 28. |
Isomers of C4H9O and C2H2O2 |
| Answer» | |
| 29. |
What is markovnikov reaction |
| Answer» Negative part of attacker attack on that atom or group which less no. Hydrogen atom | |
| 30. |
What is mass of proton? |
| Answer» | |
| 31. |
Co2 is more havier than O2 and No2 but Co2 is always above the both gas in atmosphere. Why ??? |
| Answer» | |
| 32. |
How dihydrogen as a fuel |
| Answer» | |
| 33. |
imperical formula is in which chapter |
| Answer» It is in chapter 1 : Some basic concepts of chemistry | |
| 34. |
What is common ion effect??? |
|
Answer» The decrease in concentration of one of the ions by adding other ion as common ion is called common ion effect Degree of dissocation of weak electrolyte suppressed on adding common salt ,it is called Common ion effect. |
|
| 35. |
Which of the following independent of path-(a)workdone (b)internal energy? |
|
Answer» internal energy Internal energy |
|
| 36. |
relation between gibbs free energy and useful work done |
| Answer» Work done = - Gibbs free energy | |
| 37. |
How many significant figers are there 1) 0.0025 2)5005 |
|
Answer» 1)22)4 1. 22. 2 1) 22) 4 CONFIRM 1) 32) 4 4 4 |
|
| 38. |
Halogenation of alkanes is done in the presence of diffused sunlight . Why?? |
| Answer» | |
| 39. |
Van der waal equation for n mole of gases |
| Answer» | |
| 40. |
How can be chemically similar elements identified based on electronic configuration? |
| Answer» | |
| 41. |
Expansion of gas in vaccum is called free expantion |
| Answer» | |
| 42. |
Can a stable Molecule have zero bond order? |
|
Answer» Absolutely no. Question this answer |
|
| 43. |
What is the octane number of iso octane |
| Answer» | |
| 44. |
Free radicals |
| Answer» When bond breaks and shared by both the atoms then they gain one one electro of the bond these one gained electrons are individuallly called free radicals | |
| 45. |
How to prepare poison |
| Answer» | |
| 46. |
What is dipole dipole moment.. |
| Answer» | |
| 47. |
Why lead does not ionise as lead tetraiodide |
| Answer» | |
| 48. |
What are units of Vander waals constant \'a\' and \'b\'? What is their significance? |
| Answer» unit of a: atm L^2 mol^-2 or bar dm^6 mol^-1unit of b: L mol^-1 or dm^3 mol^-1 | |
| 49. |
What are the important topics of 11th particular chapters?? |
| Answer» | |
| 50. |
Using the equation pv=nRT show that d=pm/RT |
|
Answer» Here u simply need to put and use a formula of density =mass /volume ..and at place of volume .and then leave the density on one side and take all the others on another side Refer ncert text book |
|