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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. |
Conformational structure of methane |
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| 2. |
What is the oxidation state of chlorine in KClO4 |
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Answer» Oxidation state of chlorine in this question is +7 Oxidation state of 1 and-1 |
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| 3. |
What is syngas |
| Answer» The mixture of CO and H2 is called "water gas" .since it is used in synthesis of methanol (CH3OH) and also a number of hydrocarbons,it is also called as "syn gas" or otherwise "synthesis gas" | |
| 4. |
What is alkyl group |
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Answer» A group that follow Cn h2n-1 rule An alkyl is a functional group of organic chemical that contains only carbon and hydrogen atoms which arecarranged in a chain.Ex- methyl, ethyl etc. |
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| 5. |
What is Boyle\'s law |
| Answer» It states that the temperature remaining constant the volume of a given mass of ages is inversely proportional to its pressure | |
| 6. |
What are ideal solutions |
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| 7. |
Important questions in chemistry |
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| 8. |
What are the peculiar properties of water( H2O ) ? |
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| 9. |
What is reagent . |
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| 10. |
Why ozone is a reducing agent? |
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| 11. |
Why do we add gypsum while preparing cement |
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| 12. |
Application for redox reaction |
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| 13. |
Iupac structure |
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| 14. |
Cbse syllabus for class 11 chemistry final term exam |
| Answer» Whole book | |
| 15. |
Redos reaction main question |
| Answer» Balancing of equations by oxidation no. method and ion electron method or electrochemical cell | |
| 16. |
Which gas used for filling the balloon |
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Answer» Helium Helium Helium Hydrogen |
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| 17. |
Describe cathode vray experiment .how will you detect the spot where the rays strike |
| Answer» By using florescent/ phosphorescent (zns) | |
| 18. |
Happy new year 2018 |
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| 19. |
How to convert 2 chlorobutane to 1 chlorobutane |
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| 20. |
Explain green chemistry? |
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| 21. |
How does rain water get contaminated with acidic impurities? |
| Answer» Because in air many harmful gases are present and they mix with air and make it impure. | |
| 22. |
Give the significance of the terms B.O.D. and C.O.D. |
| Answer» BOD. Biological oxygen demandCOD. Chemical oxygen demand | |
| 23. |
No. Of sigma bond in P4O10. |
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Answer» There are 5sigma bond 13 sigma bond |
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| 24. |
Why s-block group has orbital 2n² |
| Answer» Due to their electronic configuration | |
| 25. |
P4+Nahi+H2o=PH3+3NaH2PO2 |
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| 26. |
Redox titration |
| Answer» It is type of titration in redox reaction | |
| 27. |
A swimmer coming out from a pool |
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| 28. |
Mechanism of chlorination of benzen with equation |
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| 29. |
Chlorocyclohexane formula and its structure. |
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Answer» ClC6H11 C6H6 . |
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| 30. |
What is the formula of urea with structure. |
| Answer» NH2CONH2 | |
| 31. |
What is carbon?? How is it form?? |
| Answer» Carbon is covalent compound.which is form with combining with other element which are covalent in nature that is for example CH4(methane) . Carbon has outer valence electron 4 and hydrogen has 1 and hydrogen in this compound 4 hydrogen .so hydrogen has total 4 valence electron then carbon octate is complete and hydrogen octate complete. theorfore carbon form covalent compound | |
| 32. |
Sodium Sulphate Solution added to aqueous solution of Barium Nitrate? |
| Answer» Na2SO4 + BaNO3 ― BaSO4 + Na2NO3 | |
| 33. |
1 angustrun equal to ? |
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Answer» 10 raised to the power -10 m 10raised to the power-10. 0.1 nm |
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| 34. |
What is the means of basicity |
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Answer» The definition of basicity is the condition of being a base, or the difficulty for an acid to react with a base determined by the number of hydrogen atoms that can be replaced in the acid. An example of something that has basicity is water.It means the tendency of a compound to act as hydron (proton) acceptor. The basicity of a chemical species is normally expressed by the acidity of the conjugate acid. it is the mixture of salt with acid |
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| 35. |
What is spontaneous and non spontaneous reaction? |
| Answer» Sponataneous reactions are those which once initiated propagates themselves but non spontaneous need some agency to propagate | |
| 36. |
What is heavy water? |
| Answer» Heavy water is D2O and it is also called deuterium. | |
| 37. |
What is electrovalence in kössel\'s theory? |
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| 38. |
What is hydrogen bonding |
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Answer» Attractional force between a hydrogen atom and an highly electronegative element(fluorine,nitrogen or oxygen) The attraction between two polar charges |
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| 39. |
Structure of (ccl3)c(cl) |
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| 40. |
The density of |
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| 41. |
Define inert pair effect |
| Answer» Reluctance of outermost s electrons to partucipate in bonding | |
| 42. |
In which process energy is released nd why ?A) S+e- =s- b) O- +e- =o-2 |
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| 43. |
Moment of inertia |
| Answer» it is the product of mass and the square of distance between them from the axis of rotation. I=mr^2 n I= Σ i=1 | |
| 44. |
What will be the mass of one atom of C-12 in grams |
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| 45. |
How can you convert n-hexane to benzene? |
| Answer» Aromatisation | |
| 46. |
Caster Keller |
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| 47. |
is decrease in enthalpy the only criterion for spontanety |
| Answer» Nops | |
| 48. |
Why liquids diffuse slowly as compared to gases |
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Answer» Due to high density as compared to gases Molecules of liquids have stronger intermolecular attractions between them as compared to gases so the molecules of gases moves freely and the molecules of liquids moves slowly. Hence, liquids diffuse slowly as compared to gases. Diffusion In liquids is slower than diffusion in gases because the paricle in a liquid move very slowly. |
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| 49. |
What are the common physical and chemical feature of alkali metals |
| Answer» Low density, can be cut easily because of softness, low melting and boiling point. | |
| 50. |
Why water has maximum density at 4°C ? |
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Answer» Water in form of ice has 4 H bonds forming cage structure,hence has low density.but as ice melt water occupies vacant space and hence it\'s density increases . this occurs till 4°C, after that water expand,so volume increases, density decreases.Thus, water has maximum density at 4°C. Because at 4 `c water exest in liquid as well as vapour |
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