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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. |
The number of C-C sigma bonds in the compound |
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Answer» The number of C-C sigma bonds in the compound
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| 2. |
Calculate the molarity of solution of Ethanol in water in which mole fraction of Ethanol is 0.04 |
| Answer» Calculate the molarity of solution of Ethanol in water in which mole fraction of Ethanol is 0.04 | |
| 3. |
Is a function differentiable at end points of its domain?Where end points of domain are included i.e. domain is of the form [a,b] |
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Answer» Is a function differentiable at end points of its domain? Where end points of domain are included i.e. domain is of the form [a,b] |
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| 4. |
If acid reacts with water they should dissociate into positively and negatively charged ions but why not in the case of co32-? |
| Answer» If acid reacts with water they should dissociate into positively and negatively charged ions but why not in the case of co32-? | |
| 5. |
A solution is prepared by dissolving a solid mixture of K2C2O4 and KHC2O4. A 10 ml portion of the solution required 10 ml of 0.05 M KOH solution. In a separate analysis 10 ml of the same stock solution required 25 ml of a 0.10 M HCl solution. List-I contains questions related to information given and List-II contains their answers. List - IList - II(I) The molar ratio of K2C2O4 and KHC2O4 in the mixture is(P) 1:2(II) Number of milli moles of KHC2O4in the mixture is(Q) 1.5(III) Number of milli moles of K2C2O4in the mixture is(R) 0.5(IV) Number of milli equivalents of acidifiedK2Cr2O7 required to oxidise 5 ml the solution is(S) 1(T) 2:1(U) 3 Which of the following options has the correct combination considering Lists-I, II? |
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Answer» A solution is prepared by dissolving a solid mixture of K2C2O4 and KHC2O4. A 10 ml portion of the solution required 10 ml of 0.05 M KOH solution. In a separate analysis 10 ml of the same stock solution required 25 ml of a 0.10 M HCl solution. |
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| 6. |
The complex [Co(en)2F2]ClO4, the number of stereoisomers is |
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Answer» The complex [Co(en)2F2]ClO4, the number of stereoisomers is |
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| 7. |
The conversion of sugar C12H22O11→CO2 is |
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Answer» The conversion of sugar C12H22O11→CO2 is |
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| 8. |
A solution contains one mole of alcohol and four moles of water. What are the mole fractions of water and alcohol? |
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Answer» A solution contains one mole of alcohol and four moles of water. What are the mole fractions of water and alcohol? |
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| 9. |
The general formula of alkane is |
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Answer» The general formula of alkane is |
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| 10. |
The water surface profile resulting from flow underneath the gate in figure is |
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Answer» The water surface profile resulting from flow underneath the gate in figure is |
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| 11. |
1-propanol and 2-propanol can be best distinguished by: |
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Answer» 1- |
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| 12. |
Paheli bought a statue made of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason. |
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Answer» Paheli bought a statue made of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason. |
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| 13. |
Qu'est-ce qu'on achète: |
| Answer» Qu'est-ce qu'on achète: | |
| 14. |
6. If isopropyl chloride and ethly chloride both react with Na in presence of dry ether which alkane is obtained |
| Answer» 6. If isopropyl chloride and ethly chloride both react with Na in presence of dry ether which alkane is obtained | |
| 15. |
Given that S+32O2→SO3+2x kcal and SO2+12O2→SO3+y kcal then, the enthalpy of formation of SO2 will be: |
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Answer» Given that |
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| 16. |
FeCr2O4+NaOH+air→(A)+Fe2O3 (A) + (B) → Na2Cr207 Na2Cr2O7 + XΔ−→ Cr2O3 Cr2O3 + YΔ−→ Cr (X) and (Y) are |
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Answer» FeCr2O4+NaOH+air→(A)+Fe2O3 (A) + (B) → Na2Cr207 Na2Cr2O7 + XΔ−→ Cr2O3 Cr2O3 + YΔ−→ Cr (X) and (Y) are |
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| 17. |
The correct order of bond order of dioxygen , super oxide ion and peroxide ion is |
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Answer» The correct order of bond order of dioxygen , super oxide ion and peroxide ion is |
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| 18. |
Why FeSO4.6H2O is not a coordination compound? |
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Answer» Why FeSO4.6H2O is not a coordination compound? |
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| 19. |
Ammonia gas is passed into water, yielding a solution of density 0.93g/cm3 and containing 18.6%NH3 by weight. The mass of NH3 per cc of the solution is |
| Answer» Ammonia gas is passed into water, yielding a solution of density 0.93g/cm3 and containing 18.6%NH3 by weight. The mass of NH3 per cc of the solution is | |
| 20. |
Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H2SO4 followed by treatment with NaOH? |
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Answer» Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H2SO4 followed by treatment with NaOH? |
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| 21. |
t-butyl chloride combine with hydroxy anion by which mechanism?(1) SN 1(2) SN 2(3) SE 1(4) SE 2 |
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Answer» t-butyl chloride combine with hydroxy anion by which mechanism? (1) SN 1 (2) SN 2 (3) SE 1 (4) SE 2 |
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| 22. |
Iupac naming of CH2CHCH2CCH |
| Answer» Iupac naming of CH2CHCH2CCH | |
| 23. |
A strongly alkaline solution of a monoaminodicarboxylic acid contains how many basic groups ? |
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Answer» A strongly alkaline solution of a monoaminodicarboxylic acid contains how many basic groups ? |
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| 24. |
SN1 & SN2 product are same in (excluding stereoisomer): |
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Answer» SN1 & SN2 product are same in (excluding stereoisomer): |
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| 25. |
For a reaction X + Y^+3--------> X^+3 + Yat 298K, E°= 0.3 V. Hence Keq is Options: 2.7 × 10–101.8 × 10–15 3.0 × 10101.5 × 10–8 |
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Answer» For a reaction X + Y^+3--------> X^+3 + Y at 298K, E°= 0.3 V. Hence Keq is Options: 2.7 × 10–10 1.8 × 10–15 3.0 × 1010 1.5 × 10–8 |
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| 26. |
if mole fraction of urea in aqueous solution is 0.1 ,then mass percentage of urea in the solution will be(molar mass of the urea 60g /mol |
| Answer» if mole fraction of urea in aqueous solution is 0.1 ,then mass percentage of urea in the solution will be(molar mass of the urea 60g /mol | |
| 27. |
30. p-dihydroxybenzene and p-dichlorobenzene which has more dipole moment and why |
| Answer» 30. p-dihydroxybenzene and p-dichlorobenzene which has more dipole moment and why | |
| 28. |
27. The number of occupied orbital with magnetic quantum number equal to zero in Ca and N respectively are |
| Answer» 27. The number of occupied orbital with magnetic quantum number equal to zero in Ca and N respectively are | |
| 29. |
Why are Mn²+ compounds more stable than Fe²+ towards oxidation to their +3 state ? |
| Answer» Why are Mn²+ compounds more stable than Fe²+ towards oxidation to their +3 state ? | |
| 30. |
What is Kc for the following equilibrium when the equilibrium concentration of each substance is: [SO2]=0.60M,[O2]=0.82M and [SO3]=1.90M? 2SO2(g)+O2(g)→2SO3(g) |
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Answer» What is Kc for the following equilibrium when the equilibrium concentration of each substance is: [SO2]=0.60M,[O2]=0.82M and [SO3]=1.90M? |
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| 31. |
The main factor responsible for weak acidic nature of B-F bonds in BF3 is - |
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Answer» The main factor responsible for weak acidic nature of B-F bonds in BF3 is - |
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| 32. |
What volume of 95% sulphuric acid (density =1.85g/cm³) and what mass of water must be taken to prepare 100cm³ of 15% solution of sulphuric acid (density = 1.0g/cm³) ? |
| Answer» What volume of 95% sulphuric acid (density =1.85g/cm³) and what mass of water must be taken to prepare 100cm³ of 15% solution of sulphuric acid (density = 1.0g/cm³) ? | |
| 33. |
How many years it would take to spend Avogadro's number of rupees at the rate of 1 million rupees in one second? |
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Answer» How many years it would take to spend Avogadro's number of rupees at the rate of 1 million rupees in one second? |
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| 34. |
The expression for the solubility product of Al2(SO4)3 is |
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Answer» The expression for the solubility product of Al2(SO4)3 is |
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| 35. |
How many of the following disproportionate on treatment with NaOH (under suitable conditions) (i) B (ii) C (iii) Si (iv) F2 (v) Cl2 (vi) Br2 (vii) l2 (viii) P4 (ix) S ___ |
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Answer» How many of the following disproportionate on treatment with NaOH (under suitable conditions) (i) B (ii) C (iii) Si (iv) F2 (v) Cl2 (vi) Br2 (vii) l2 (viii) P4 (ix) S |
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| 36. |
16. The chlorobenzenze is o,p directing in electrophillic substitution . The directing in fluence is explained by?? |
| Answer» 16. The chlorobenzenze is o,p directing in electrophillic substitution . The directing in fluence is explained by?? | |
| 37. |
A current of 4 ampere was passed for 1.5hours through a solution of copper sulphate when 3gram of copper was deposited.Calculate the current efficiency |
| Answer» A current of 4 ampere was passed for 1.5hours through a solution of copper sulphate when 3gram of copper was deposited.Calculate the current efficiency | |
| 38. |
For free radical reactions which can react faster alkanes or alkenes and why? |
| Answer» For free radical reactions which can react faster alkanes or alkenes and why? | |
| 39. |
Choose the odd one out:-(1)Tree(2)Three(3)Free(4)Hurry |
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Answer» Choose the odd one out:- (1)Tree (2)Three (3)Free (4)Hurry |
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| 40. |
8.5 g of hydrogen peroxide is present in 280 mL of solution. The volume strength of H2O2 solution is |
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Answer» 8.5 g of hydrogen peroxide is present in 280 mL of solution. The volume strength of H2O2 solution is |
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| 41. |
ques. comcentrated aqueous acid is 98% H_{2 }SO_4 by mass and has a density of 1.80g.mL^{-1} .volume of acid required to make 1 litre of 0.1M H_2SO_4 solution is : (a) 5.55 mL (b)11.10mL (c) 16.65mL (d) 22.20m |
| Answer» ques. comcentrated aqueous acid is 98% H_{2 }SO_4 by mass and has a density of 1.80g.mL^{-1} .volume of acid required to make 1 litre of 0.1M H_2SO_4 solution is : (a) 5.55 mL (b)11.10mL (c) 16.65mL (d) 22.20m | |
| 42. |
The cyclotron frequencies for a deuteron and an α− particle are fd and fα respectively. Then - |
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Answer» The cyclotron frequencies for a deuteron and an α− particle are fd and fα respectively. Then - |
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| 43. |
what is protection of colloids?what is bredig's arc method and what are associated colloids? |
| Answer» what is protection of colloids?what is bredig's arc method and what are associated colloids? | |
| 44. |
Identify Y in the following reactions: |
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Answer» Identify Y in the following reactions: |
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| 45. |
convert chloroprapane to 2-propano |
| Answer» convert chloroprapane to 2-propano | |
| 46. |
69. For three reaction of 1,2,3 order respectively the rate constants k1,k2,k3 are equal if concentration is expressed in terms of mol /l if concentration is expressed in terms of mol/ml their relation is k1/x1=k2/x2=k3/x3.the values of x1,x2,x3 are |
| Answer» 69. For three reaction of 1,2,3 order respectively the rate constants k1,k2,k3 are equal if concentration is expressed in terms of mol /l if concentration is expressed in terms of mol/ml their relation is k1/x1=k2/x2=k3/x3.the values of x1,x2,x3 are | |
| 47. |
Arrange the following molecules in the decreasing order of bond angle.(i)NH3(ii)CH4(iii)BF3(iv)BeCl2 |
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Answer» Arrange the following molecules in the decreasing order of bond angle. |
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| 48. |
63 Which of the following group show +m effect? a)-CN b)-O-No c) -NH-coo-ch3 d)-CHO |
| Answer» 63 Which of the following group show +m effect? a)-CN b)-O-No c) -NH-coo-ch3 d)-CHO | |
| 49. |
How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66 g of diborane?(Given: Atomic weight of B=10.8 u) |
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Answer» How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66 g of diborane? |
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| 50. |
Arrange in decreasing order of boiling point H2S, H2O, H2Se, H2Te |
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Answer» Arrange in decreasing order of boiling point H2S, H2O, H2Se, H2Te |
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