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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. |
Which of the following has a octet/duplet electronic configuration? |
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Answer» Which of the following has a octet/duplet electronic configuration? |
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| 2. |
base + metal - ?base + non metal oxide - ? |
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Answer» base + metal - ? base + non metal oxide - ? |
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| 3. |
If the size of nucleus (10^-15m) is scaled up to the tip of a sharp pin (10^-5m) then what roughly is the size of the atom |
| Answer» If the size of nucleus (10^-15m) is scaled up to the tip of a sharp pin (10^-5m) then what roughly is the size of the atom | |
| 4. |
Which of the following oxyacids of Chlorine is the strongest oxidizing agent? |
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Answer» Which of the following oxyacids of Chlorine is the strongest oxidizing agent? |
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| 5. |
The Cl-C-Cl bond angle in 1,1,2,2- tetrachloroethene and tetrachloro methane respectively are(1) 120^° and 109.5 (2) 90^° and 109.5^° (3) 109.5^° and 90^°(4) 109.5^° and 120^° ? |
| Answer» The Cl-C-Cl bond angle in 1,1,2,2- tetrachloroethene and tetrachloro methane respectively are(1) 120^° and 109.5 (2) 90^° and 109.5^° (3) 109.5^° and 90^°(4) 109.5^° and 120^° ? | |
| 6. |
Rationalize the denominator of 22 divided by 2+root 3+root 5 |
| Answer» Rationalize the denominator of 22 divided by 2+root 3+root 5 | |
| 7. |
The simplest formula for the unit cell given below is: |
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Answer» The simplest formula for the unit cell given below is: |
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| 8. |
What is the hybridisation in [Ni(PPh3)2Cl2] what is its shape |
| Answer» What is the hybridisation in [Ni(PPh3)2Cl2] what is its shape | |
| 9. |
find number of phosphodiester bond in 4kbp and how find i |
| Answer» find number of phosphodiester bond in 4kbp and how find i | |
| 10. |
Question 5 (b)How will you name the following compounds? |
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Answer» Question 5 (b) How will you name the following compounds?  |
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| 11. |
The final product Z, obtained in this reaction,would be: |
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Answer» The final product Z, obtained in this reaction, |
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| 12. |
The amorphous form of silica is: |
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Answer» The amorphous form of silica is: |
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| 13. |
Iodine molecule dissociates into atoms after absorbing light of 4500A∘A∘.If one quantum of radiation is absorbed by each molecule,calculate the kinetic energy of iodine atoms (Bond energy of I2=240KJmol−1 |
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Answer» Iodine molecule dissociates into atoms after absorbing light of 4500A∘A∘.If one quantum of radiation is absorbed by each molecule,calculate the kinetic energy of iodine atoms (Bond energy of I2=240KJmol−1 |
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| 14. |
At what temperature will the total K.E. of 0.3 mol of He be the same as the total K.E. of 0.40 mol of Ar at 400 K ? |
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Answer» At what temperature will the total K.E. of 0.3 mol of He be the same as the total K.E. of 0.40 mol of Ar at 400 K ? |
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| 15. |
{(CH_3)}_3C-OH on treatment with NaCl in aqueous medium gives(a) no reaction(c) {(CH_3)}_3C^+CI^-(b) {(CH_3)}_3C^{}Na(d) isobutylene. |
| Answer» {(CH_3)}_3C-OH on treatment with NaCl in aqueous medium gives(a) no reaction(c) {(CH_3)}_3C^+CI^-(b) {(CH_3)}_3C^{}Na(d) isobutylene. | |
| 16. |
40.In which of the following cases the reaction goes farthest to completion 1 A gives B(K= 10 to the power 3) 2) P gives Q (K = 10 to the power -2) 3) A+B gives C+D (k=10) 4)X+Y gives XY2 (k = 10to the power -1) |
| Answer» 40.In which of the following cases the reaction goes farthest to completion 1 A gives B(K= 10 to the power 3) 2) P gives Q (K = 10 to the power -2) 3) A+B gives C+D (k=10) 4)X+Y gives XY2 (k = 10to the power -1) | |
| 17. |
Does a functional group determine the physical properties of a carbon compound? |
| Answer» Does a functional group determine the physical properties of a carbon compound? | |
| 18. |
Which is/are the possible product(s) of the given reaction? |
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Answer» Which is/are the possible product(s) of the given reaction? |
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| 19. |
1 litre of a hydrocarbon weights as much as one litre of CO2 at same P and T. Then what is the molecular formula of the hydrocarbon |
| Answer» 1 litre of a hydrocarbon weights as much as one litre of CO2 at same P and T. Then what is the molecular formula of the hydrocarbon | |
| 20. |
Under what condition glucose is converted to gluconic acid and saccharide acid? |
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Answer» Under what condition glucose is converted to gluconic acid and saccharide acid? |
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| 21. |
27.Which is true for ionic compounds ? 1) high melting point 2) conductor of electricity in molten and aqueous state 3)high boiling points 4) all of these |
| Answer» 27.Which is true for ionic compounds ? 1) high melting point 2) conductor of electricity in molten and aqueous state 3)high boiling points 4) all of these | |
| 22. |
Six moles of an ideal gas performs a cycle as shown in figure. If the temperatures are TA=600 K, TB=800 K, TC=2200 K and TD=1200 K , then the work done for complete cycle is (in kJ) |
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Answer» Six moles of an ideal gas performs a cycle as shown in figure. If the temperatures are TA=600 K, TB=800 K, TC=2200 K and TD=1200 K , then the work done for complete cycle is (in kJ)  |
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| 23. |
For the T-s diagram shown below, what is the value of dryness fraction of the stea-n before throttling process?Take hn=710.1 kJ/kg,hfg1=2032 kJ/kg,hf2=410.5 kJ/kg,hfg2=2157.9 kJ/kg |
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Answer» For the T-s diagram shown below, what is the value of dryness fraction of the stea-n before throttling process? |
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| 24. |
why is C-12 atom used for the reference of atomic mass of other elements? |
| Answer» why is C-12 atom used for the reference of atomic mass of other elements? | |
| 25. |
30. An electron initially present in an excited state of H atom is further excited to another energy level by an incident photon. It releases 10 photons while coming back to ground state out of which 7 have higher energy than incident photon. In which excited state was the electron present initially? |
| Answer» 30. An electron initially present in an excited state of H atom is further excited to another energy level by an incident photon. It releases 10 photons while coming back to ground state out of which 7 have higher energy than incident photon. In which excited state was the electron present initially? | |
| 26. |
3.What is the relationship between H and E if all the reactant and product are in the liquid state in a reaction. |
| Answer» 3.What is the relationship between H and E if all the reactant and product are in the liquid state in a reaction. | |
| 27. |
The correct property relation for enthalpy change dh is: |
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Answer» The correct property relation for enthalpy change dh is: |
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| 28. |
A compound contains 8% sulphur.The minimum molecular weight of the compound is?? |
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Answer» A compound contains 8% sulphur.The minimum molecular weight of the compound is?? |
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| 29. |
which of the following has maximum value of Ka2?(a)HOOC-COOH (b)HOOC-CH2-COOH (c)HOOC-(CH2)2-COOH (d)HOOC-(CH2)3-COOH |
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Answer» which of the following has maximum value of Ka2? (a)HOOC-COOH (b)HOOC-CH2-COOH (c)HOOC-(CH2)2-COOH (d)HOOC-(CH2)3-COOH |
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| 30. |
A metal oxide contains 60 % of metal by mass. The equivalent weight of the metal is: |
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Answer» A metal oxide contains 60 % of metal by mass. The equivalent weight of the metal is: |
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| 31. |
How to solve 5 raise to power 3/2 |
| Answer» How to solve 5 raise to power 3/2 | |
| 32. |
41.Why Is Ni(II) More stable than Pt(II) And Pt(IV) more stable than Ni(IV) Kindly explain |
| Answer» 41.Why Is Ni(II) More stable than Pt(II) And Pt(IV) more stable than Ni(IV) Kindly explain | |
| 33. |
Vapour density of a diatomic elementary gas is 16. The atomic mass of gas is: |
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Answer» Vapour density of a diatomic elementary gas is 16. The atomic mass of gas is: |
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| 34. |
A copper wire has diameter 2 mm and resistivity of 3.14×10−7 Ω m. What will be the length of this wire to make its resistance 10 Ω ? |
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Answer» A copper wire has diameter 2 mm and resistivity of 3.14×10−7 Ω m. What will be the length of this wire to make its resistance 10 Ω ? |
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| 35. |
The acid which reduce tollens reagentMethanoic acidEthanoic acidButanoic acidPropanoic acid |
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Answer» The acid which reduce tollens reagent Methanoic acid Ethanoic acid Butanoic acid Propanoic acid |
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| 36. |
Column -IColumn -II(I) N2O5(s)(P) Cation has sp3d2 hybridised central atom(II) ICl3 (Molten)(Q) Anion has square planar shape(III) PBr5(s)(R) Anion has trigonal planar shape(IV) XeF6(s)(S) Cation is linear (T) Cation has tetrahedral shapeWhich of the following option has the correct combination considering List-I and List-II. |
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Answer»
Which of the following option has the correct combination considering List-I and List-II. |
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| 37. |
how do \lbrack Co(en)2Br2\rbrack Cl have 6 isomers?? |
| Answer» how do \lbrack Co(en)2Br2\rbrack Cl have 6 isomers?? | |
| 38. |
34.The unit of rate of reaction is 1- mol/Ls 2- Same for instantaneous rate and average rate 3- Same for all reactions and not depend upon the nature of reaction 4- All of these |
| Answer» 34.The unit of rate of reaction is 1- mol/Ls 2- Same for instantaneous rate and average rate 3- Same for all reactions and not depend upon the nature of reaction 4- All of these | |
| 39. |
Write structural formulae for the following IUPAC names. a. pent-2-one b. 2-chlorobutane c. propan- 2 ol d. methanal e. butanoic acid f. 1-bromopropane g. ethanamine h. butanone |
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Answer» Write structural formulae for the following IUPAC names.
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| 40. |
Onemole of H2Oand one mole of CO are taken in 10 L vessel and heated to725K. At equilibrium 40% of water (by mass) reacts with CO according tothe equation, Calculatethe equilibrium constant for the reaction. |
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Answer» One 725
Calculate |
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| 41. |
The human body contains many minerals like iron. So why don't we stick to a magnet? |
| Answer» The human body contains many minerals like iron. So why don't we stick to a magnet? | |
| 42. |
BOD stands for |
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Answer» BOD stands for |
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| 43. |
Hydrogen combines with chlorine to form HCl.it also combines with sodium to form NaH.if sodium and chlorine also combine with each other they will do so in the ratio of their masses as |
| Answer» Hydrogen combines with chlorine to form HCl.it also combines with sodium to form NaH.if sodium and chlorine also combine with each other they will do so in the ratio of their masses as | |
| 44. |
Calculate the mass of a coal sample in kg containing 0.05 % mass of iron pyrite (FeS2) that can produce 44.8 litres of SO2 at 1 atm and 273 K with 40 % reaction yield.FeS2+O2→Fe2O3+SO2(Molar mass of Iron = 56 g/mol; molar mass of Sulphur = 32 g/mol) |
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Answer» Calculate the mass of a coal sample in kg containing 0.05 % mass of iron pyrite (FeS2) that can produce 44.8 litres of SO2 at 1 atm and 273 K with 40 % reaction yield. |
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| 45. |
How much charge should be supplied to a cell for the electrolytic production of 245 gm NaClO4 from NaClO3 if the anode efficiency for the required reaction is 80%? |
| Answer» How much charge should be supplied to a cell for the electrolytic production of 245 gm NaClO4 from NaClO3 if the anode efficiency for the required reaction is 80%? | |
| 46. |
36.Calculate formal charge on ClO4- and SO42- |
| Answer» 36.Calculate formal charge on ClO4- and SO42- | |
| 47. |
three atoms P,Q,R andd crystallize in a cubic solid lattice where P atoms are the alternate faces,R atoms are the center of edges and Q atoms are at the 2/3 rd of the total corners present ,hence the formula of the compound. |
| Answer» three atoms P,Q,R andd crystallize in a cubic solid lattice where P atoms are the alternate faces,R atoms are the center of edges and Q atoms are at the 2/3 rd of the total corners present ,hence the formula of the compound. | |
| 48. |
The P-V diagram for a cyclic process is a triangle ABC drawn in order. The co-ordinates of A, B and C are (4,1),(2,4), and (2,1) respectively. Calculate the work done in the complete cycle. |
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Answer» The P-V diagram for a cyclic process is a triangle ABC |
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| 49. |
16 moles of H2 and 4 moles of N2 are sealed in an one litre vessel. The vessel is heated at a constant temperature until the equilibrium is established, it is found that the pressure in the vessel has fallen to 9/10 th of its original value. Calculate new concentration of N2 and NH3 in mol L−1N2(g)+3H2(g)⇌2NH3(g) |
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Answer» 16 moles of H2 and 4 moles of N2 are sealed in an one litre vessel. The vessel is heated at a constant temperature until the equilibrium is established, it is found that the pressure in the vessel has fallen to 9/10 th of its original value. Calculate new concentration of N2 and NH3 in mol L−1 N2(g)+3H2(g)⇌2NH3(g) |
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| 50. |
A photon of wavelength λ falls on a metal surface of work function ϕ. If stopping voltage for ejected photoelectron is V0, then deBroglie wavelength of ejected photoelectron is |
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Answer» A photon of wavelength λ falls on a metal surface of work function ϕ. If stopping voltage for ejected photoelectron is V0, then deBroglie wavelength of ejected photoelectron is |
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