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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. |
Why hydrogen does not have neutron |
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| 2. |
Thermodynamic |
| Answer» Thermodynamic is a branch of Physics concerned with heat and temperature and their relation to energy and work | |
| 3. |
What is the formula of propane |
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| 4. |
Calculate bord order 02 _ ions is |
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| 5. |
What is mean by mole concept?? |
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| 6. |
What is diagonal relationship ?? |
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| 7. |
What is quantization? ? |
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Answer» Quantization is the process of converting a continuous range of values into a finite range of discreet values. This is a function of analog-to-digital converters, which create a series of digital values to represent the original analog signal. Quantization is the process of converting a continuous range of values into a finite range of discreet values. This is a function of analog-to-digital converte |
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| 8. |
Why sp3 orbital are formed? |
| Answer» This is done due to hybridization (process of intermixing of atomic orbitals to form new orbitals having equal energy and shape). SP3 orbital is from by mixing of one s orbital and 3 p orbitals.They are formed to make electrons from other atoms to join them easily by providing less electron repulsions arrangement , so that bond got made easily. | |
| 9. |
The work done in an open vessel at300k when 112 g iron reacts with dilute hcl is... |
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| 10. |
Find the wavelength associated with an electron with kinetic energy 5000J |
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| 11. |
What is the valence bond theory |
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| 12. |
What is Rutherford drawbacks? |
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Answer» Inability to explain:-(1)stability of atom (2) distribution of electrons around nucleus (3) Line spectra He can\'t explain that the stability of an atom |
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| 13. |
What is Bohr\'s atomic model |
| Answer» The Bohr model is a relatively primitive model of the hydrogen atom, compared to the valence shell atom. As a theory, it can be derived as a first-order approximation of the hydrogen atom using the broader and much more accurate quantum mechanics and thus may be considered to be an obsolete scientific theory. However, because of its simplicity, and its correct results for selected systems (see below for application), the Bohr model is still commonly taught to introduce students to quantum mechanics or energy level diagrams before moving on to the more accurate, but more complex, valence shell atom. A related model was originally proposed by Arthur Erich Haas in 1910, but was rejected. The quantum theory of the period between Planck\'s discovery of the quantum (1900) and the advent of a full-blown quantum mechanics (1925) is often referred to as the old quantum theory | |
| 14. |
Name two chemical compound is used in treatment of cancer |
| Answer» Topothecan and Cisplatin | |
| 15. |
What is diatomic molecule |
| Answer» Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning "two".There are seven elements that naturally occur as homonuclear diatomic molecules in their gaseous states: hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine.If the diatomic molecule consists of atoms from two different elements, then it is a heteronuclear diatomic molecule. | |
| 16. |
Non medi |
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| 17. |
Why does ice floats on water |
| Answer» When ice is formed a cage like structure forms with empty space due to which volume increases and density decreses. As density of ice is less than that of water therefore ice floats. | |
| 18. |
What is polyatomic |
| Answer» A polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit, ions of two atoms are commonly referred to as polyatomic.An example of a polyatomic ion is the hydroxide ion; consisting of one oxygen atom and one hydrogen atom, hydroxide has a charge of −1. Its chemical formula is OH−. Polyatomic ions are often useful in the context of acid-base chemistry or in the formation of salts. | |
| 19. |
Define photoelectric effect |
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Answer» The phenomenon of ejection of electrons from the metal surface when light of suitable frequency strike on it, is called photoelectric effect. When a light of certain frequency is incident on a metal surface . Then electrons are emitted from metal surface . The emitted electrons are known as photoelectrons and this phenomena is known as photoelectric effect |
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| 20. |
What is molecular mass? |
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Answer» Sum of atomic masses of all individual atoms in molecule of the compound, is molecular mass of that compound. Molecular mass or molecular weight is the mass of a molecule. It is calculated as the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element in the molecular formula. |
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| 21. |
What is hybrid orbitals |
| Answer» The process of intermixing of atomic orbitals, to form new orbitals having equal energy and shape is called hybridization.And new orbitals formed are called hybrid orbitals. | |
| 22. |
Faijan rule |
| Answer» The covalent character in ionic bond is determined by Fajans rule | |
| 23. |
Assign position of element having outer electronic configuration ns2np4 for n equals 3 |
| Answer» Sulphur | |
| 24. |
what is Dalton atomic theory? |
| Answer» Daltins atomic theory_ he said that matter consist of indivisible atoms Atoms of same element having same and identical properties but different to the atom of another elements Compounds are formed when the atoms of different element combine in fixed ratioChemical reaction involves the reorganization of atoms. In every chemical reaction atoms do not loose their identity | |
| 25. |
Ph |
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| 26. |
Deduce general gas equation from p1v1/t1=p2v2/t2 |
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| 27. |
Among so2 and CLF3 which is more ionic and why? |
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| 28. |
Molecular orbital diagram of N2+ |
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| 29. |
What is polar & non polar molecules |
| Answer» When opposite charges attract (+or-attract )each called polar molecules Where as same charges are given than called non polar | |
| 30. |
Some basic concepts |
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| 31. |
Draw the lewis dot structure of p and p3- |
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| 32. |
Difference between molar mass and atomic mass and mass number |
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Answer» Molar mass is the mass of a compound total mass of compound and atomic mass is also known as a mass of an element and mass number is the sum of number of protons and number of neutrons it is also known as atomic mass of the element thank you very much U know.. there\'s a thing called Google ... So u can search whatecrr u want over there gosh .. normies |
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| 33. |
Thermodynamics |
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Answer» Thermodynamics is the branch of science which deals with the study of different form of energy and their inter conversation The branch the branch of chemistry which deals with the energy changes associated chemical reaction is called chemical energy is and thermodynamics means reservation of seat in to work because thermo refers to heat and dynamics refers to movement |
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| 34. |
What is isomophous? |
| Answer» Isomorphous belongs to crystal having same atomic arrangements | |
| 35. |
Why is alkene consedar as we can molecules then alkene |
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| 36. |
How to make reaction |
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| 37. |
Can u make my chemistry assignment |
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Answer» The assignment are given to you so that you can learn something no cheat But why you always do your work yourself |
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| 38. |
What is the effect of electronegativety in atomic size |
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| 39. |
Which book I prefer |
| Answer» Companion chemistry | |
| 40. |
H2o is liquid at room temperature but H2s is not |
| Answer» The ability of Oxygen atom to pull electrons is greater than of Sulphur i.e. O is more electronegative than S. When Hydrogen is connected to a highly electronegative element like Oxygen (this usually happens with fluorine, oxygen, and nitrogen), it has higher intermolecular forces like Hydrogen bonding. Its a very strong bond that packs the water molecules closely together, forming a liquid while sulphur does not attract H nearly as strongly so they dissociate into a gas. | |
| 41. |
How to draw the resonance structure |
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| 42. |
What is dark matter? (general knowledge question) |
| Answer» According to scientists dark matter is the 6th form of matter we cannot see dark matter but it exists around us. It is found that the galaxy rotating the outer stars and the inner stars have same position in any instant so scientists gives this matter name as dark matter which holds the inner and outer stars same | |
| 43. |
What do you mean by a digit by term? |
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| 44. |
Would you expect the 1st IE of two isotopes of the two elements to be same or different? justify? |
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| 45. |
how many oxygen atom would be there in 1 mole of H2SO4? |
| Answer» 4 * 6.022 * 10^23 | |
| 46. |
Define molality |
| Answer» Molality is the no. of moles of solute present in per Kg mass of solvent | |
| 47. |
How to calculate molarity |
| Answer» Molarity=no. of moles of solute/volume of solvent in L | |
| 48. |
Why O has lower ionisation enthalpy than N and F |
| Answer» Due to there electronic configuration | |
| 49. |
What is the structure of Fe3O4 |
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| 50. |
Explain delta fG°changes with temperature for spontaneity |
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