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. |
Diference between diamond and graphite |
|
Answer» There are lot of difference between diamond and graphita1: diamond is sp3 hybridised and graphite is sp2 hybridised2: diamond does not conduct electricity and graphite do3:diamond is hard whearas graphit is soft4:in diamond vander wall force is absent and in graphite it is present Diamond and graphite are both the compounds of carbon......they differ in their structure.... In diamond all the e- of carbon are engaged in their bonds but in graphite one of pair of e- is left unpaired ....... That is why graphite appears black where as diamond is crystal clear ..... The reason is for the rigidity of diamond and the brittleness of graphite |
|
| 2. |
Aliya online ho to message send karo |
| Answer» | |
| 3. |
Aliya online ho |
| Answer» | |
| 4. |
What do you mean by S character??? Please answer me |
| Answer» S char is %of s orbital in hybridised orbitalsFor eg in sp 50 % s and 50% p char is present | |
| 5. |
You are online |
| Answer» | |
| 6. |
Ok see you in 1.30 bye bye darling my jaan |
| Answer» | |
| 7. |
Aliya come here |
| Answer» | |
| 8. |
How to draw a bond line structure? |
| Answer» | |
| 9. |
What is bohr\'s theory and its postulates? |
| Answer» | |
| 10. |
Where we can use (reactant -- Product) while finding enthalpy |
| Answer» | |
| 11. |
Resonance structure |
| Answer» Resonance structure will equally divide the electron to all the sides by the help of doted line | |
| 12. |
Rasonance effect |
| Answer» | |
| 13. |
Difference between inductive effect and mesomeric effect |
| Answer» \tInductive EffectMesomeric Effect1. It operates in saturated compounds.1. It operates in unsaturated compounds especially having conjugated systems.2. It involves electrons of a – bonds.2. It involves electrons of π – bonds or lone pair of electrons.3. The electron pair is slightly displace from its position and hence partial charges are developed.3. The electron pair is completely transferred and hence unit positive and negative charges are developed.4. It is transmitted over a short distance it becomes negligible after second carbon atom in the chain.4. It is transmitted through the entire chain provided conjugation is present.\t | |
| 14. |
James ab tak apne mera answer nhi diya |
|
Answer» ❤❤❤❤??? Mai smjh gai ♡ |
|
| 15. |
What is atom,explain? |
| Answer» An atom which is capable of independent excists or An atom is a pure thing which contains only one element | |
| 16. |
Kaise ho ap james |
| Answer» | |
| 17. |
Good night aliya mehra and my other cbse friend |
| Answer» | |
| 18. |
Explain capillary action |
| Answer» | |
| 19. |
What is structure of diborane |
| Answer» 2hydrogen atoms are joinded with 1boron atom | |
| 20. |
why it tastes like sweet when we drink water after having amla |
| Answer» Maybe amla has starch in it | |
| 21. |
What do you mean by inert pair effect? |
|
Answer» In certain elements..the electrons in S orbital refuse to take part in chemical bonding..this is called inert pair effect. When any S-block element takes part in bonding with the P-block element it is known as inert pair effect |
|
| 22. |
Aliya what think you find in me |
| Answer» | |
| 23. |
Why the ionization enthalpy dicreases down the group? |
|
Answer» Ionisation enthalpy is amount of energy needed to remove most losely bonded electron from valence shell.As we move down the group the size increases and outermost or valence shell moves far away from neucleus. So it will be removed easily as effect of attraction of neucleus decreases.So ionisation enthalpy decreases. Due to increase in atomic size While moving down a group the atomic number increases and the number of shells also increases. As a result of it the outermost shell is far away from the nucleus so the ionization enthalpy decreases moving down a group. |
|
| 24. |
Dumas method. Kjeldahl,s method. |
| Answer» | |
| 25. |
How fast is an electron moving if it has a wavelength equal to the distance it travel in one second? |
|
Answer» I think you are wrong keshav Use Heisenberg uncertainty principle |
|
| 26. |
What is quantization of electronic energy? |
|
Answer» Thanks Or refer to ch2 ncert chemistry |
|
| 27. |
What is carbo cation |
|
Answer» The positive charge on carbon called carbo cation Carbo atom which loses electron |
|
| 28. |
Show the geo metrical isomers of pent-2-ene |
| Answer» | |
| 29. |
What is quaternary |
| Answer» just like primary , secondary, tertiary ,there is a quaternary which means carbon is attached to 4 canon directly by bond,? | |
| 30. |
What is stearic hindrance |
| Answer» | |
| 31. |
Balance the reaction P4 + oh-gives ph3 + h2po2- |
| Answer» | |
| 32. |
Why ink of pain flow out in space? |
| Answer» If the \'pain\' stands for pen.,the answer is that __On earth there is atmospheric pressure which do not allow the ink to flow. But in space their is no atmosphere so obviously no atmospheric pressure so their is no force to restrict it to flow out.P = Pa + hdgIn space,No Pa & no g , that\'s why no P.I suggest you should solve these simple problems on your own. | |
| 33. |
Ritu sorry |
| Answer» | |
| 34. |
Ch3-chcl-Choh-ch3 |
| Answer» 3-Chlorobutan-2-ol | |
| 35. |
What are zeolytes . how silicones are prepare? |
| Answer» | |
| 36. |
Ritu you are girl or boy |
| Answer» | |
| 37. |
Where is my gf |
| Answer» | |
| 38. |
Find oxidation number of CaO2 |
|
Answer» +4 oxidation state is not possible as it has only 2 valence electrons in valence shell. So it gives 2 electrons to one O and the first O donate lone pair to other O. +4 |
|
| 39. |
Which chemical is known as king of chemicals? |
| Answer» Sulphuric acid | |
| 40. |
Why half filled orbitals are more stable |
| Answer» Because in half filled orbitals repulsion between electrons is minimum. | |
| 41. |
Which reaction shows by alkane |
| Answer» substitution rxn | |
| 42. |
Give the IUPAC name for C6H5-CH--CH-CH2cl |
| Answer» 1-Chloro-3-phenylpropane | |
| 43. |
Give the IUPAC name of (CH3)2CH whole 3 Time\'s COH |
| Answer» | |
| 44. |
Why mendleev\'s periodic table failed?? |
|
Answer» And it also have a lots of disadvantages ...u can check it in your 10 class book As it doesn\'t gave the complete information about the elements Atomun mass |
|
| 45. |
How do you from : (a) semi carbazone from corbonyl group (b) Alcohol from corbonyl group |
| Answer» | |
| 46. |
How many inner transition series are present in f block |
| Answer» | |
| 47. |
When 2 mole of an 2 is treated with 3 mole of H2 to form Ammonia as for given reaction |
| Answer» | |
| 48. |
What is hydrogen peroxide |
|
Answer» H2O2 H2o2 |
|
| 49. |
what are the example of adiabatic process |
| Answer» | |
| 50. |
What is the oxidation state of chlorine in KClO4 compound. |
|
Answer» Right 1+Cl+4 {-2}=0 cl = 7 |
|