InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements are correct about barbiturates (a) Hyphotics or sleep producing agents (b) These are tranquilizers (c ) Non-narcotic analgesics (d) Pain reducing without disturbing the nervous systemA. a,bB. a,b,cC. b,cD. c,d |
| Answer» Correct Answer - A | |
| 2. |
Which of the following is food preservatives : (a) Salt of sorbic acid (b) Sodium benzoate (c ) Ethyl benzoate (d) AlcoholA. a,b,dB. a,b,cC. c,dD. a,d |
| Answer» Correct Answer - B | |
| 3. |
Which of the following KF in the solution of HF :-A. `1M H_(2)S`B. `M H_(2)O`C. `1MH_(2)Se`D. `1M H_(2)Te` |
| Answer» Correct Answer - B | |
| 4. |
Which among the following can exhibit cis-trans isomerismA. `CoCl_(3).4NH_(3)`B. `CoCl_(3).6NH_(3)`C. `CoCl_(3).5NH_(3)`D. All of these |
| Answer» Correct Answer - A | |
| 5. |
In a saturated aqueous solution of AgBr, concentration of `Ag^(+)` ion is `1xx10^(-6)` mol `L^(-1)` it `K_(sp)` for AgBr is `4xx10^(-13)`, then concentration of `Br^(-)` in solution isA. `1xx10^(-6)mol" "L^(-1)`B. `4xx10^(-8)mol" " L^(-1)`C. `4xx10^(-7)mol" " L^(-1)`D. `4xx10^(-19)mol" " L^(-1)` |
| Answer» Correct Answer - C | |
| 6. |
Identify the end product : `CH_(3)CH_(2)CH_(2)CHOoverset(Ammonical AgNO_(3))(to)Xoverset(NaHCO_(3))(to)Yunderset(Delta)overset(NaOH+CaO)(to)Z`A. `CH_(3)-CH_(2)CH_(2)-COOH`B. `CH_(3)-CH_(2)-CH_(2)-CH_(3)`C. `CH_(3)-CH_(2)-COOH`D. `CH_(3)-CH_(2)-CH_(3)` |
| Answer» Correct Answer - D | |
| 7. |
In the following series of chemical reaction. Identify Z : `C_(3)H_(7)OHunderset(170^(@)C)overset(Conc.H_(2)SO_(4))(to)Xoverset(Br_(2))(to)Yunderset((II)"l eq".)NaNH_(2)overset((I)Alc.KOH)(to)Z`A. `CH_(3)-underset(NH_(2))underset(|)(CH)-underset(NH_(2))underset(|)(CH_(2))`B. `CH_(3)-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH_(2))`C. `CH_(3)-underset(OH)underset(|)(C)-CH_(2)`D. `CH_(3)-C-=CH` |
| Answer» Correct Answer - D | |
| 8. |
Aniline `underset(o-5^(@)C)overset(NaNO_(2)+HCl)(to)Xoverset(N,N-"Dimeanline")(to)Y` (a coloured product) The structure of Y would be :A. B. C. D. |
| Answer» Correct Answer - B | |
| 9. |
Which of the following does not react with `(I_(2)+NaOH)` or NaOI :A. `CH_(3)-CHO`B. `CH_(3)-CH_(2)-CHO`C. `CH_(3)-CH_(2)-OH`D. `CH_(3)-underset(O)underset(||)C-CH_(3)` |
| Answer» Correct Answer - B | |
| 10. |
Give eletrophilicity order of following carbonyl compounds (I) Benzaldehyde (II) p-Tolualdehyde (III) P-Nitrobenzaldehyde (IV) AcetophenoneA. `IgtIVgtIIIgtII`B. `IIIgtIgtIIgtIV`C. `IVgtIIgtIgtIII`D. `IIgtIVgtIgtIII` |
| Answer» Correct Answer - B | |
| 11. |
Carboxylic carbon is……………….than carbonyl carbon :A. Less electrophilicB. More electrophilicC. less nucleophilicD. More nucleophilic |
| Answer» Correct Answer - A | |
| 12. |
`CH_(3)-C-=underset(2.H_(3)O^(+))overset(1.SnCl_(2)//HCl)(to)` Product Reaction is called :A. Stephen reaction for preparation of amineB. Stephen reaction for preparation of imineC. Stephen reaction for preparation of ketoneD. Stephen reaction for preparation of aldehyde |
| Answer» Correct Answer - D | |
| 13. |
Correct stament for nucleophlic addition of sodium bisulphate on carbonyl compounds is :A. This addition is highly sensitive to crowding steric crowding increase, then addition decreases, so aldehyde more reactive than ketone in this reactionB. This reaction used for separation of aldehyde and ketone from a mixture containing some other compounds becouse addition product is a crystaline saltC. It is reversible reaction, so bisulphite addition product regenerate corresponding carbonyl compound on treatment with acid or baseD. All of these |
| Answer» Correct Answer - D | |
| 14. |
A solid compound X on heating gives `CO_(2)` gas and a residue. When mixed with water it forms Y. On passing excess of `CO_(2)` through Y in water a clear solution of Z is obtained. On boiling Z compound X is reformed. Compound X isA. `CaCO_(3)`B. `Na_(2)CO_(3)`C. `K_(2)CO_(3)`D. `Ca(HCO_(3))_(2)` |
| Answer» Correct Answer - A | |
| 15. |
Oxidation of which of the followind arenes does not give benzoic acidA. EthylbenzeneB. CumeneC. MesityleneD. Sec. Butylbenzene |
| Answer» Correct Answer - C | |
| 16. |
Benzoic acid not form in :A. B. C. D. |
| Answer» Correct Answer - D | |
| 17. |
Amongst the following the central atoms are directly bonded inA. `N_(2)O_(5)`B. `S_(2)O_(5)^(2-)`C. `P_(4)O_(10)`D. `Mn_(2)O_(7)` |
| Answer» Correct Answer - B | |
| 18. |
When excess of ammonia is added to `CuSO_4` solution, the deep blue coloured complex is formed. Complex isA. Tetrahedral & paramagneticB. Tetrahedral & diamagneticC. Square planar & diamagneticD. Square planar & paramagnetic |
| Answer» Correct Answer - D | |
| 19. |
Blue baby syndrome is caused due to excess :A. `F^(ө)`B. `NO_(3)^(ө)`C. PbD. `SO_(4)^(2-)` |
| Answer» Correct Answer - B | |
| 20. |
`P+Cl_(2)toA,P+"Excess"Cl_(2)toB` Hydrolysis products of A and B are respectivelyA. `H_(3)PO_(2),H_(3)PO_(3)`B. `H_(3)PO_(4),H_(3)PO_(3)`C. `H_(3)PO_(3),H_(3)PO_(4)`D. `H_(3)PO_(2),H_(3)PO_(4)` |
| Answer» Correct Answer - C | |
| 21. |
In the given reaction `C_(6)H_(5)-O-CH_(2)-CH_(3)overset(Excess HI//Delta)(to)[X]+[Y]` [X] and [Y] will respectively be:A. `C_(6)H_(5)I` and `CH_(3)CH_(2)I`B. `C_(6)H_(5)OH` and `CH_(3)CH_(2)-I`C. `C_(6)H_(5)I` and `CH_(3)CH_(2)OH`D. `C_(6)H_(5)OH` and `CH_(2)=CH_(2)` |
| Answer» Correct Answer - B | |
| 22. |
The correct order of `K_(a)` is : (i) `CH_(3)-CH_(2)-COOH` (ii) `OHC-CH_(2)-COOH` (iii) `Ph-CH_(2)-COOH`A. `iiigtiigti`B. `igtiigtiii`C. `iigtiiigti`D. `igtiiigtii` |
| Answer» Correct Answer - C | |
| 23. |
`K_(a)` increases in benzoic acid substituet X bonded at pare position then X is :A. `-OCH_(3)`B. `-CH_(3)`C. `-CN`D. `-NH_(2)` |
| Answer» Correct Answer - C | |
| 24. |
The rate law of reaction `A+2Bto`product given by `r=K(A)^(2)(B)^(1)`. If A is taken in excess the order of the reaction will be :-A. zeroB. 1C. 2D. 3 |
| Answer» Correct Answer - B | |
| 25. |
Which of the following rate law expression represent zero order reaction :-A. Which of the following rate law expression represent zero order reaction :-B. Which of the following rate law expression represent zero order reaction :-C. Which of the following rate law expression represent zero order reaction :-D. Which of the following rate law expression represent zero order reaction :- |
| Answer» Correct Answer - C | |
| 26. |
For which reaction `K_(P)=K_(C)`:-A. `N_(2(g))+3H_(C(g))hArr2NH_(3(g))`B. `2NOCI_((g))hArr2NO_((g))+CI_(2(g))`C. `I_(2(g))+H_(2(g))hArr2HI_((g))`D. None of these |
| Answer» Correct Answer - C | |
| 27. |
For which of the following reaction is product formation favoured by law pressure and high temperature?A. `H_(2(g))+I_(2(g))hArr2HI_(g) " "DeltaH^(@)=-9.4KJ`B. `CO_(2(g))+C_(s)hArr2CO_(g) " "DeltaH^(@)=172.5KJ`C. `CO_((g))+2H_(2(g))hArrCH_(3)OH_((g)) " "DeltaH^(@)=-21.7KJ`D. `2SO_(2(g))+O_(2(g))hArr2SO_(3(g)) " "DeltaH^(@)=285KJ` |
| Answer» Correct Answer - B | |
| 28. |
At certain temp. compound `AB_(2(g))` dissociate according to reaction `AB_(2(g))hArrAB_(g)+B_(g)` with degree of dissociation `prop_(1)` which is small compared with unity. The expression of `K_(P)` in terms of `prop`and initial pressure P is :-A. `Pprop^(3)`B. `Pprop^(2)`C. `(prop^(3))/(P)`D. `(prop^(2))/(P)` |
| Answer» Correct Answer - B | |
| 29. |
For the reaction `N_(2)O_(4)(g)hArr2NO_(2)(g)`, the degree of dissociation at equilibrium is `0.2` at `1` atm pressure. The equilibrium constant `K_(p)` will beA. `(1)/(2)`B. `(1)/(4)`C. `(1)/(6)`D. `(1)/(8)` |
| Answer» Correct Answer - C | |
| 30. |
`As_(2)S_(3)+HNO_(3)toH_(3)AsO_(4)+H_(2)SO_(4)+NO` the element which is oxidised in the reaction is / areA. AsB. SC. ND. As and S |
| Answer» Correct Answer - D | |
| 31. |
In balancing the half reaction, `S_(2)O_(3)^(2-)toS`, the number of electrons that must be added is :-A. 2 on the rightB. 2 on the leftC. 4 on the leftD. 4 on the right |
| Answer» Correct Answer - C | |
| 32. |
The oxidation number of C in `K_(2)C_(2)O_(4)` isA. `+3`B. `+4`C. 0D. `+1` |
| Answer» Correct Answer - A | |
| 33. |
In alkaline medium , `KMnO_(4)` reacts as follows `2KMnO_(4)+2KOH rarr 2K_(2)MnO_(4)+H_(2)O+O` Therefore, the equivalent mass of `KMnO_(4)` will beA. 31.6B. 52.7C. 79D. 158 |
| Answer» Correct Answer - D | |
| 34. |
Match the column : `{:(,"Polymer",,"Linkage",),((i),"Terylene",(a),"Glycosidic linkage",),((ii),"Cellulose",(b),"Ester linkage",),((iii),"Protein",(c ),"Phosphodiester linkage",),((iv),"RNA",(d),"Amide linkage ",):}`A. i-b, ii-a, iii-c, iv-dB. i-b, ii-a, iii-d, iv-cC. i-d, ii-b, iii-a, iv-cD. i-a, ii-b, iii-d, iv-c |
| Answer» Correct Answer - B | |
| 35. |
Tautomer of I is A. IIB. IIIC. Both II and IIID. None of these |
| Answer» Correct Answer - A | |
| 36. |
Back bonding always changesA. bond angleB. hybridisation of central atomC. planarityD. bond length |
| Answer» Correct Answer - D | |
| 37. |
Stability order of these tautomer is :- A. `IgtIIgtIII`B. `IIIgtIIgtI`C. `IIgtIgtIII`D. `IIgtIIIgtI` |
| Answer» Correct Answer - D | |
| 38. |
Bond angle in `H_(2)O` isA. `104.5^(@)`B. `120^(@)`C. `109.5^(@)`D. `107^(@)` |
| Answer» Correct Answer - A | |
| 39. |
`[NiCl_(4)]^(-2)` and `[Ni(CN)_(4)]^(-2)` resemble inA. geometryB. magnetic natureC. hybridationD. oxidation |
| Answer» Correct Answer - D | |
| 40. |
The correct stability order for `N_2` and its given ions is :A. `N_(2)gtN_(2)^(+)gtN_(2)^(-)gtN_(2)^(2-)`B. `N_(2)^(-)gtN_(2)^(+)gtN_(2)^(-)gtN_(2)^(2-)`C. `N_(2)^(+)gtN_(2)^(-)gtN_(2)gtN_(2)^(2-)`D. `N_(2)gtN_(2)^(+)=N_(2)^(-)gtN_(2)^(2-)` |
| Answer» Correct Answer - A | |
| 41. |
Which of the following has fractional bond order ?A. `O_(2)^(2+)`B. `O_(2)^(2+)`C. `F_(2)^(2-)`D. `H_(2)^(-)` |
| Answer» Correct Answer - D | |
| 42. |
Which of the following have same bond order :- (I) CO (II)`CN^(-)` (III) `O_(2)^(+)` (IV) `NO^(+)`A. I,II,IIIB. I,II,IVC. I,III,IVD. II,III,IV |
| Answer» Correct Answer - B | |
| 43. |
There are some species given below :- `{:((a)O_(2)^(+),,,,(b)CO),((c)B_(2),,,,(d)O_(2)^(+)),((e)NO^(+),,,,(f)He_(2)^(+)),((g)C_(2)^(+2),,,,(h)CN^(-)),((i)N_(2)^(-),,,,):}` Total no. of species which have their fractional bond order.A. 3B. 4C. 5D. 6 |
| Answer» Correct Answer - B | |
| 44. |
A metal bucket is be electroplated by using `ZnCI_(2)` as an electrolyte. How many moles of zinc are deposited in 20 min by a constant of 10A?A. 0.01B. 0.03C. 0.06D. `0.10` |
| Answer» Correct Answer - C | |
| 45. |
The coordination number of `F^(-)` ion in `CaF_(2)` crystalline structure isA. 8B. 2C. 4D. 6 |
| Answer» Correct Answer - C | |
| 46. |
The incorrect statement regarding defeat in crystalline solid is :-A. Densite of crystal decreases in Schottky defeatB. Frenkel defect is dislocation defeatC. Defects increaes conductivity of solidD. Density of crystal increases in frenkel defect |
| Answer» Correct Answer - D | |
| 47. |
Which of the following is incorrect regarding salt bridge solution ?A. Solution must be strong electrolyteB. Solution should be inert towards both electrodesC. Size of cation and anions of salt should be or agar-ager to make it semi solidD. Salt bridge solution is prepared in gelatin or agar-ager to make it semi solid. |
| Answer» Correct Answer - C | |
| 48. |
Metals have conductivity in the order of `(ohm^(-1) cm^(-1))`A. `10^(12)`B. `10^(8)`C. `10^(2)`D. `10^(-6)` |
| Answer» Correct Answer - B | |
| 49. |
The conductivity of Electrolytic solution depends on-A. Size of the ions produced and their solvationB. The nature of the solvent and its viscosityC. TemperatureD. All of the above |
| Answer» Correct Answer - D | |
| 50. |
Which of these molecule is optically active ? A. IB. IIC. IIID. All of these |
| Answer» Correct Answer - D | |