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. |
Food items should be kept away from light.give reason |
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| 3. |
How to identifu if a reactn is nuclephilic or electrophilic? |
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Answer» ELECTROPHILE - will most LIKELY have a POSITIVE CHARGE Nucleophile - will most likely have a NEGATIVE charge |
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| 4. |
How to find the molecular mass of any compound or element? |
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Answer» First U should KNOW the molar masses of the elements and compounds e.g |
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| 5. |
Metal hydrides are ionic ,covalent or molecular in nature .among lih,nah,kh,rbh,csh,the correct order of increasing ionic charecter is |
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Answer» The ans is the reverse one of your QUESTION for ionic CHARACTER DECREASES down the group for alkali HYDRIDES. |
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| 6. |
Do we have to put mixture in ice cream machines |
| Answer» YES we have to put MIXTURE in ICE cream MACHINES | |
| 7. |
Do non crystalline materials display the phenomenon of allotropy.why or why not |
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Answer» Hii DEAR!! |
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| 8. |
Do frozen or fresh food retain more potassium |
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Answer» Hii DEAR!! |
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| 9. |
Linear dependence and independence differential equations |
| Answer» GIVEN two non-zero functions f(x) and g(x) write down the following equation. ... On the other HAND if the only two constants for which (1) is TRUE are c = 0 and k = 0 then we call the functions linearly independent. EXAMPLE 1 DETERMINE if the following sets of functions are linearly dependent or linearly independent. | |
| 10. |
Does the configuration of carbon changes in case of SN2 reaction |
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| 11. |
Does there exist more than one solution of a sudoku |
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| 12. |
How to calculate percentage uncertainty in chemistry? |
| Answer» PERCENTAGE UNCERTAINTY = ABSOLUTE uncertainty/ MEASURED VALUE ×100 | |
| 13. |
The IUPAC name for C{{H}_{3}}CO-C{{H}_{3}}is [J & K 2005]A) Dimethyl ketone B) Acetone C) Propanal D) Propanone |
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| 14. |
Freon-114 used in refrigerator and air conditioners is 1, 2-dichorotetrafluoroethane. Its structural formula is [CPMT 1979, 81; NCERT 1975]A) Cl-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{F}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-H B) F-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-F C) F-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{Cl}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{F}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-Cl D) F-\underset{Cl}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{H}{\mathop{\underset{|}{\mathop{\overset{Cl}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{F}{\mathop{\underset{|}{\mathop{\overset{F}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-F |
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| 15. |
How many sulphide bonds are present in a mature insulin? |
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Answer» I think 3 DISULPHIDE bonds |
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| 16. |
How many protons neutrons and electrons are in magnesium 24? |
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Answer» Magnesium, in its elemental form, has12 PROTONS and 12 electrons. The neutrons are a different matter. Magesium's average atomic MASS is 24.305 atomic mass units, but no magnesium atom has exactly this mass. |
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| 17. |
Is sign covention of heat same in physics and chemistry? |
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Answer» Sign convention are different in PHYSICS and CHEMISTRY as in physics we take work done by the SYSTEM as positive and in chemistry we take work done on the system |
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| 19. |
The most appropriate statement regarding organic compounds isA) They possess ionic and covalent bonds B) Presence of carbon is not essential C) They are found in a large number D) Their reactions are fast |
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| 20. |
The ion that is isoelectronic to CO isa) O2-b) N2+c) CN-d) O2+ |
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Answer» ANSWER is CN- (option -C) the number of ELECTRONS is 14 |
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| 22. |
How are the elements with variable vacancy named ? Explain with example. |
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Answer» Lower VALENCY of same metal is end with suffix OUS and higher valency by IC |
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| 23. |
How is chemistry involved in makeup things??? |
| Answer» CHEMISTRY is involve in MAKEUP by the beauty product's composition. MAY be all the COMPONENT are not SUITABLE for our skin. | |
| 24. |
What is the molecular mass of substance ,each molecule of which contains 4 atom of carbon and 10 atoms of hydrogen?? |
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Answer» The molecule is C₄H₁₀ Butane |
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| 25. |
How is photosynthesis associated with the carbon cycle? |
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Answer» Because it TAKES CO2 from the ENVIRONMENT |
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| 26. |
In which type of air pollution does iron rust? |
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Answer» Air POLLUTION in which high amount of WATER VAPOURS are PRESENT. |
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| 28. |
Different types of catalyst based on its function |
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Answer» There are two types of catalyst i.e positive catalyst and negative catalyst |
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| 31. |
IUPAC name of acetyl salicylic acid is [CPMT 1994]A) m-benzoic acid B) 2-acetoxy benzoic acid C) p-benzoic acid D) p-acetyl benzoic acid |
| Answer» B) 2-acetoxy BENZOIC ACID | |
| 32. |
Difference between salinity and alkalinity of drinking water |
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Answer» Salinity of water is BASED upon to salt content DISSOLVED in water LIKE sodium, POTASSIUM, magnesium etc.. |
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| 33. |
1gram of nitrogen present in how many grams of protein |
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Answer» This is based on the assumption that, except in azotemic individuals, almost all nitrogen in the body is found INPROTEIN. PROTEIN contains approximately 16% nitrogen by weight, so 1 gram of nitrogen represents 6.25grams of protein [154]. |
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| 34. |
Difference between mineral matter and organic matter |
| Answer» MINERAL MATTER are not CARBONIC WHEREAS ORGANIC matter are carbonic | |
| 35. |
Difference between hexavalent chromium and total chromium |
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Answer» The partially full d-orbitals in transition metals have energy splittings that HAPPEN to lie in the visible range. Depending on the arrangement of substituents (known as ligands) that attach to them, the electron energies split according to crystal FIELD theory. Similar SPLITTING in the s or p orbitals produce gaps in the ultraviolet, and any visible light goes right through, so we don't see any color. In transition metals, however, visible light excites the ELECTRONS from a lower d orbital to a higher one and only letting some light through. |
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| 36. |
Difference between cordova and ionic and xamarin |
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Answer» What are Hybrid HTML and Cross-Platform Native? |
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| 37. |
Difference between amorphous and crystalline polymers |
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Answer» ...................... |
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| 38. |
Uses of phosphazines |
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Answer» Phosphazenes are also USED as SURFACE coating and composite MATERIALS. |
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| 39. |
Difference between acetyl coa and acetyl s coa |
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Answer» Acyl-COA is a group of coenzymes involved in the metabolism of fatty acids. It is a temporary compound formed when coenzyme A (CoA) ATTACHES to the end of a long-chain fatty acid inside living cells. The compound UNDERGOES BETA oxidation, forming ONE or more molecules of acetyl-CoA. |
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| 40. |
Please answer thisWe can easily move our hand in air but to do the same through a solid block of wood we need a karate expert? |
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Answer» It is hard or ELEMENTS are closely PACKED TOGETHER or too dense than AIR |
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| 41. |
Why do we feel cold when you wear cotton clothes in summer? |
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Answer» Because it has PORES and it evaporates the water fastly which gives COLDNESS to our BODY. |
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| 43. |
Why copper wire is used for wiring at our homes |
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Answer» Because it is a GOOD CONDUCTOR of ELECTRICITY. |
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| 44. |
Please please please please answer this?Particles in liquid and gases show random motion? What does it mean and why does it occur?Why do we feel cold when you wear cotton clothes in summer?Generally liquids have low density, than solids but you must have observed that ice floats on water why?We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert? |
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Answer» Particle of liquid and gases show random motion because it it has kinetic energy between them |
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| 46. |
How to distinguish between primary secondary and tertiary alcohol? |
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Answer» Hii mate_________________________ |
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| 47. |
Which of the following will give you more severe burn and why1).steam at 373k2).water at 373k |
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Answer» The steam at 373k will GIVE more SEVERE burn because it was more HEAT than WATER 373k |
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| 48. |
Acid present in soft drinks |
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Answer» Hey there ! |
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| 49. |
Name an element that oxidizes water write equation for the reaction |
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| 50. |
Comment on the following :rate of evaporation of soulation dacreases with increase in humidity |
| Answer» HO GAYE and a PERPENDICULAR of a | |