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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. |
Kindly say the answer very quickly |
| Answer» Ok | |
| 2. |
difference between S block D block and f block |
| Answer» Then you see periodic table | |
| 3. |
How many electron in an atoms have the following quantum nos. ?n=4, ms=-1/2, n=3, l=0. |
| Answer» I think question is incorrect | |
| 4. |
Who is the discoverd of neutron & proton |
| Answer» Proton => Ernest Rutherford Neutron => James Chadwick .??☺ | |
| 5. |
Valium and seratonin come under which category of drugs?.. answer fast please??? |
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Answer» I am sorry to say but it was the worst question i have faced...??? Does guru randhawa comes in your relation.....?? ..... ,,,,, |
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| 6. |
Name the heaviest metal. |
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Answer» Metal.... uranium |
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| 7. |
Development of atomic model on report write |
| Answer» | |
| 8. |
What vapour density of air which density 0.001293 gm/ml |
| Answer» Mai tera baapAnswer de nhi ata to kuch mat bol | |
| 9. |
What is the mass of nucleus |
| Answer» Mass of nucleus = mass of proton 10^-27 kg | |
| 10. |
H2O in illustration methods |
| Answer» | |
| 11. |
Define the law of mutiple propotion with eg .How does this law points to the existence of atoms |
| Answer» | |
| 12. |
calculate the no. of moles of 5.6 gram of pirate |
| Answer» | |
| 13. |
Is it necessary to memorize the Milikan\'s oil drop experiment?! |
| Answer» | |
| 14. |
How to simply learn periodic table |
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Answer» Thanks for yr suggestions Aak to your mam or sir Search on youtube it will be fine. by forming a sentence. it will definitely help |
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| 15. |
What is the role of chemistry in different spheres of life |
| Answer» | |
| 16. |
Total number of electrons in 1 mole of CO2 is (in terms of Na) |
| Answer» | |
| 17. |
Litres of ccl4 ( equal to 1.5 g / ml) that contains 1 into 10 to the power 25 ccl4 molecules |
| Answer» | |
| 18. |
What is stoichiometric? |
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Answer» It is a type of balanced chemical reaction from which we can get information about mole\'s, number of molecules, volume and weight of the reactant and product. It is a calculation of masses of reactant and product in any chemical reaction.☺☺ |
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| 19. |
Electronic configuration of all elements |
| Answer» U have to learn atomic. No. Of elements and then learn the way of writing electronic configuration. | |
| 20. |
Find the mass in gm of 5 atoms of He |
| Answer» 10gm | |
| 21. |
difference between bonding and antibonding molecular orbital |
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Answer» Thanks vanisha Bonding ? Bonding molecular orbitals are a type of molecular orbitals that are involved in the formation of a chemical bond .?Electron density is higher.?Electron is comparatively lower .Antibonding ?Antibonding molecular orbital are orbital containing Electron outside the region between two atomic nuclei .?Electron density is lower .?Electron is comparatively higber. |
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| 22. |
What is SI uint of Temperature |
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Answer» Celcius and Kelvin Kelvin Kelvin Kalvin |
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| 23. |
What is the difference betweeen atomic n.o and mass n.o |
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Answer» Atomic number means number of protons we say usually but also electrons and mass number means sum of protons + sum of neutrons. Atomic number is the number of protons and electrons while mass number is the sum of number of protons and neutrons |
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| 24. |
What are the values of n and 1 for 2p orbital |
| Answer» n=2 and l=1 | |
| 25. |
What is grignart reagent |
| Answer» Which is not accretive reagent which is less than limiting reagent in amount. | |
| 26. |
Why are atomic mass always fractional? |
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Answer» It doea because most elements exist as mixture of isotopes It doesn\'t actually |
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| 27. |
What is soft water |
| Answer» Soft water contains ca+ and na+ ions and it reacts when a sodium hydrogen carbonate | |
| 28. |
caco3 dil hcl cao+co2 answer key for 11 science |
| Answer» | |
| 29. |
Is molecular mass is exactly same as molar mass.if difference please tell me what |
| Answer» The Molecular mass and Molar mass are two different terms and should not be confused as implying the same meaning. The Molecular mass of a substance is the sum of the atomic masses of all the atoms present in a molecule of that substance. It is expressed in atomic mass unit (u). Thus, to calculate the molecular mass, the mass of all the atoms present in it are added.For example, Molecular mass of glucose C6H12O6 is = 6 (C) + 12 (H) + 6 (O) = 180 amu.The Molar mass, on the other hand is the mass of one mole (or 6.023 X 1023) particles of that substance. The molar mass of a substance is numerically equal to the atomic mass or the molecular mass of the substance in ‘u’ and is always measured in grams. For example, the molar mass or mass of 6.023 X 1023molecules of glucose is 180g. Similarly, mass of 6.023 X 1023 atoms of sodium or molar mass of sodium is 23g, but its atomic mass is 23u. | |
| 30. |
6.022×10^23 atoms of oxygen |
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Answer» It is also known as Avogadro constant Means 1 mole of oxygen |
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| 31. |
CooH It gives co+CO2+H2O. It is poac reaction or CooH. Not |
| Answer» | |
| 32. |
ᴅᴇғɪɴᴇ ɢᴀʏ ʟᴜssᴀᴄ ʟᴀᴡ ᴏғ ɢᴀsᴇᴏᴜs ᴠᴏʟᴜᴍᴇs??????????????????? |
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Answer» Under constant temperature and pressure the reactant molecules if gaseous bears a simple ratio among themselves as well as product if gaseous your welcome ᴛʜᴀɴᴋs ɴᴀɴᴄʏ.... ⭐⭐⭐⭐⭐ gay lussacs law of gaseous volume state that when measured at the same temperature and pressure , the ratio of the volume of reacting gas as small whole number. |
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| 33. |
Calculate the no. Of atoms in each of the following:52moles ph He, 52u of He and 52 g of He. |
| Answer» | |
| 34. |
What are the merit and d-merit of the mendeleev periodic table |
| Answer» Merits-It predicted the existance of some undiscovered elementsHe also explained the properties of some unknown elementsHe was the first scientist to arrange elements in a sytematic mannerDemerits-Position of hydrogen could not be explainedPosition of isotopesHe placed cobalt before nickel though cobalt has more atomic mass | |
| 35. |
What is Haber process? |
| Answer» | |
| 36. |
K2so4.al2(so4)3.24h2o |
| Answer» what we do in this question | |
| 37. |
Calculate the frequency of infrared radiation having 3 into 10 to the power 6 nano meter |
| Answer» | |
| 38. |
What is colloids and suspention? |
| Answer» | |
| 39. |
What is matters |
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Answer» Anything which occupie space and have some mass known as matter Anything that has mass and occupied space is called matter |
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| 40. |
Which book is best for chemistry except ncert? |
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Answer» No one is better than ncert. Pradeep U may use pradeep which is one among the best reference books |
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| 41. |
why water is taken as universal solvent..? |
| Answer» I think..It dissolves most of the things in it....thats why.. | |
| 42. |
Please give me urgent answer |
| Answer» | |
| 43. |
Application of chemistry in field |
| Answer» | |
| 44. |
Application of chemistry |
| Answer» | |
| 45. |
LI ka mass |
| Answer» 6.941 g⋅mol−1 . | |
| 46. |
Difference between matter and materials |
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Answer» Both are the same things. U can define it in this way .. Yess Material is the substance having combination of things which may have mass or it may non mass substance also. This is simply representing the quality or quantity of matter. hopes it help you Matter is which occupies space and has definite mass Actually all materials comes under matter... Is what i thinks.. |
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| 47. |
What is the electronic configuration of lead according to borh system |
| Answer» It is a proccess by which we can find no. Electron in the last shell NAME OF SHELLS IS {KLMN} electronic configuration is (2,8,18,32)It is known as bohr &bureen scheme Its mathematical formula is 2n² | |
| 48. |
State and explain the law of definite proportions. |
| Answer» He stated that a given compound always contain exactly the same proportion of elements by weight | |
| 49. |
Is neutron =proton + electron |
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Answer» Ishita from which skool you are and from which place Thanx for giving answer No Bhoomi....not at all. In a nucleus of an atom, proton and neutron are found. Proton is positively charges whereas neutron carries no charge. Proton + neutron = mass of an atom of an element. Hope the Ans was helpful...... |
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| 50. |
Empirical formula of K4Fe (CN)6 |
| Answer» | |