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.
| 301. |
Aniline can not be prepared by Gabriel phthalimide synthesis due to-A. Bulky nature of Benzene RingB. Aryl halide do not undergo nucleophilic substitution.C. Aryl halide do not undergo electrophilic substituion reactionD. Both (1) & (3) |
| Answer» Correct Answer - B | |
| 302. |
Which of the following compound cannot be formed by Gabriel phthalimide synthesis:A. B. C. `(CH_(3))_(2)CH-NH_(2)`D. `(C_(2)H_(5))(CH_(3))CH-NH_(2)` |
| Answer» Correct Answer - A | |
| 303. |
The compound which undergoes fastest reaction with aq. NaOH solution is :A. `C_(6)H_(5)-underset(Cl)underset(|)(CH)-OMe`B. `C_(6)H_(5)-underset(Cl)underset(|)(CH)-CH_(3)`C. `C_(6)H_(5)-underset(Cl)underset(|)(CH)-CH_(2)CH_(3)`D. `C_(6)H_(5)-underset(Cl)underset(|)(CH)-C_(6)H_(5)` |
| Answer» Correct Answer - A | |
| 304. |
Buna -`S` rubber `(SBR)` is a copolymer ofA. 1, 3-butadiene and Vinyl chlorideB. 1, 3-Butadiene and acrylonitirileC. chloroprene + vinyl chlorideD. chloroprene and acrylonitrile |
| Answer» Correct Answer - B | |
| 305. |
Natural rubber is also called asA. cis-1, 4-polyisopreneB. trans-1, 4-polyisopreneC. cis-1, 4-neopreneD. trans-1, 4-neoprene |
| Answer» Correct Answer - A | |
| 306. |
Which carbohydreates is used in silvering of mirrorsA. SucroseB. CelluloseC. StarchD. Glucose |
| Answer» Correct Answer - D | |
| 307. |
The antibiotic used for the treatment of typhoid is :A. PenicillinB. BithionalC. Northin droneD. Chloroamphenicol |
| Answer» Correct Answer - D | |
| 308. |
Three moles of an ideal gas expanded sponteneously in to vaccum. Then which is correct ?A. `omega=0,DeltaG=0`B. `omega=0,DeltaGlt0`C. `omega=0,Deltagt0`D. `omega!=0,Delta=0` |
| Answer» Correct Answer - B | |
| 309. |
Match the following in List-I with List II and select the corect option :- `{:(,List-I,,List-II,),(a,K_(P)=Q,i,"Always nonspontaneous",),(b,TgtDeltaH//S,ii,"Isothrmal process",),(c,underset(DeltaS=_ve)(DeltaH=+ve),iii,"Equilibrium",),(d,q=_ve,iv,"spontaneous and endothermic",):}`A. `ato(iii)bto(iv),cto(i),to(ii)`B. `ato(i)bto(iii),cto(ii),to(iv)`C. `ato(iii)bto(i),cto(iv),to(ii)`D. `ato(iii)bto(ii),cto(i),to(iv)` |
| Answer» Correct Answer - A | |
| 310. |
Correct Reactivity order of E.S.R : A. `igtiigtiii`B. `iiigtiigti`C. `igtiiigtii`D. `iigtigtiii` |
| Answer» Correct Answer - C | |
| 311. |
Which of the following compound will be not Fridal craft Reaction ?A. MesityleneB. TolueneC. BenzaldehydeD. Xylene |
| Answer» Correct Answer - C | |
| 312. |
CaS exists in a cubic close packed arrangement of `S^(2-)` ions in which `Ca^(2+)` ions occupy 1/2 of the available tetrahedral holes. How many `Ca^(2+)and S^(2-)` ions are contained in the unit cell?A. `25%`B. `50%`C. `75%`D. `100%` |
| Answer» Correct Answer - B | |
| 313. |
Match the column `{:(Column-I,,,,Column-II),("(Solid)",,,,"(Examples)"),((a)"Covalent",,,,(P)SiO_(2)),((b)"Molecular",,,,(Q)CaO),(( c)"Ionic",,,,(R)"CCI"_(4)),((d) "Metallic",,,,(S)"Bronze"):}`A. (a)P (b)Q ( c)R (d)SB. (a)R (b)P (c )Q (d)SC. (a)S (b)P ( c)Q (d)RD. (a)P (b)R (c )Q (d)S |
| Answer» Correct Answer - D | |
| 314. |
`p-`nitrophenol and `o-`nitrophenol are separated byA. Steam distillationB. Simple distillationC. Fractional distillationD. Distillation under reduced pressure |
| Answer» Correct Answer - A | |
| 315. |
Simple distillaton teacniquw can be used to separate ?A. Chloroform and AnilineB. Ether and TolueneC. Hexane and TolueneD. All of these |
| Answer» Correct Answer - D | |
| 316. |
A mixture contains four solid organic compounds `A, B, C` and `D`. On heating, only `C` changes from solid to vapor state. `C` can be separated from the rest in the mixture byA. DistillationB. SublimationC. Fractional distillationD. Crystallisation |
| Answer» Correct Answer - B | |
| 317. |
Correct match isA. `{:("Purification by" ,,,,"Method"),((1)Zr,,,,"Polling"):}`B. `{:("Purification by" ,,,,"Method"),((2)Zn,,,,"Van Arkel"):}`C. `{:("Purification by" ,,,,"Method"),((3)Ni,,,,"Distillation"):}`D. `{:("Purification by" ,,,,"Method"),((4)Ge,,,,"Zone refining"):}` |
| Answer» Correct Answer - D | |
| 318. |
Aniline is separated from aniline-water mixture by:A. Simple distillationB. Fractional distillationC. Steam distillationD. Distillation under reduced pressure |
| Answer» Correct Answer - C | |
| 319. |
Which of the following options are correct for `[Fe(CN)_(6)]^(3-)` complex ?A. `d^(2)sp^(3)` Hybridisation, diamagneticB. `sp^(3)d^(2)` HybridisationC. ParamagneticD. None of these |
| Answer» Correct Answer - A | |
| 320. |
Which of the following doesn’t follow effective atomic number rule ?A. `[Cu(NH_(3))_(4)]^(+2)`B. `[Zn(OH)_(4)]^(-2)`C. `[HgI_(4)]^(2-)`D. `Fe(CO)_(5)` |
| Answer» Correct Answer - A | |
| 321. |
Which of the following complex formed by `Cu^(2+)` ions is most stable?A. `Cu^(+2)+4NH_(3)to[Cu(NH_(3))_(4)]^(+2)`B. `Cu^(+2)+4CN^(-)to[Cu(VN)_(4)]^(-2)`C. `Cu^(+2)+2ento[Cu(en)_(2)]^(+2)`D. `Cu^(+2)+4H_(2)Oto[Cu(H_(2)O)_(4)]^(+2)` |
| Answer» Correct Answer - B | |
| 322. |
In Cu-ammonia complex the state of hybridization of `Cu^(+2)` isA. `sp^(3)`B. `spd^(2)`C. `sp^(3)d^(2)`D. `dsp^(2)` |
| Answer» Correct Answer - D | |
| 323. |
Which of the following species is not expected to be a ligand?A. NOB. `NH_(4)^(+)`C. `H_(2)N-CH_(2)-CH_(2)-NH_(2)`D. CO |
| Answer» Correct Answer - B | |
| 324. |
How many ions are produced from the complex `Co(NH_3)_6Cl_2` in solution? (i). `6` (ii). `4` (iii). `3` (iv). `2`A. 6B. 4C. 3D. 2 |
| Answer» Correct Answer - D | |
| 325. |
Which of the following is a `pi`-acid ligand?A. `NH_(3)`B. COC. `F^(-)`D. (en) |
| Answer» Correct Answer - B | |
| 326. |
Which products are formed (respectively) by reaction of lanthanoids with hydrogen oxide, burns in `O_(2)` and heated with sulphurA. `Ln(OH)_(3),Ln_(2)O_(3)Ln_(2)S_(3)`B. `Ln. xH_(2)O,Ln.O_(2)` & heterocyclic sulphidesC. `Lna_(2)O_(3),Ln(OH)_(3)&LnS`D. Macrocyclic ligands containing `OH^(-)` ions, LnO & Homo cyclic sulphides |
| Answer» Correct Answer - A | |
| 327. |
Catalyst related to polymerisation of monomers having two carbon atoms having one double bondA. `V_(2)O_(5)+"Asbeston"+TiCl_(4)`B. Zeolite + FeldsparC. `TiCl_(4)` + Tri-methyl aluminiumD. `MnO_(2)+KMnO_(4)+PdCl` |
| Answer» Correct Answer - C | |
| 328. |
Ziegler-Naate catalyst is an organometalic compound of metal ?A. FeB. ZrC. RhD. Ti |
| Answer» Correct Answer - D | |
| 329. |
The equilibrium constant for the reaction `N_(2)(g)+O_(2)(g) hArr 2NO(g)` is `4.0xx10^(-4)` at `2000 K`. In the presence of a catalyst, the equilibrium is attained `10` times faster. Therefore, the equilibrium constant in presence of the catalyst at `2000 K` isA. `40xx40^(-4)`B. `4xx10^(-4)`C. `4xx10^(-3)`D. difficult to compute without more data |
| Answer» Correct Answer - B | |
| 330. |
The reaction showing endothermic nature and reduction of halogen isA. `F_(2)+½O_(2)toF_(2)O`B. `Cl_(2)+O_(2)toCl_(2)O`C. `F_(2)+H_(2)Oto2HF+½O_(2)`D. none of the above |
| Answer» Correct Answer - A | |
| 331. |
Which of the following is most acidic ?A. `Cl_(2)O_(7)`B. `SO_(3)`C. `P_(2)O_(5)`D. `SiO_(2)` |
| Answer» Correct Answer - A | |
| 332. |
Iron can be protected by coating with zinc or tin. If coating is broken.A. iron will corrode faster if coated with zinc.B. Iron will corrode faster if coated with tinC. iron will corrode faster in both casesD. iron will not undergo any corrosion in boths case |
| Answer» Correct Answer - B | |
| 333. |
For an endothermic reaction energy of activation is `E_(a)` and enthlpy of reaction is `Delta H` (both in `kJ "mol"^(-1)`). Minimum value of `E_(a)` will beA. equal to zeroB. less than `DeltaH`C. equal to `DeltaH`D. more than `DeltaH` |
| Answer» Correct Answer - D | |
| 334. |
The Activation energy for a chemical reaction mainly depends uponA. Temperature increasesB. Nature of reacting speciesC. Concentration of the reacting speciesD. Collision frequency |
| Answer» Correct Answer - B | |
| 335. |
A black sulphide when treated with ozone becomes white, the white compound is :-A. `ZnSO_(4)`B. `CaSO_(4)`C. `BaSO_(4)`D. `PbSO_(4)` |
| Answer» Correct Answer - D | |
| 336. |
Carbogen is a mixture ofA. `O_(2) & H_(2)`B. `CO_(2) & O_(2)`C. `O_(2)` & AirD. `O_(2)` & Ne |
| Answer» Correct Answer - B | |
| 337. |
Consider the plots for the types of reaction `nAtoB+C` These plots respectively correspond to the reaction orders :A. 0,1,2B. 1,2,3C. 1,0,3D. None of these |
| Answer» Correct Answer - C | |
| 338. |
0.1 molal solution of `Hg(NO_(3))_(2)` freezes at `-.558^(@)` C. The cryoscopic constant for water is 1.86 KKg `mol^(-1)` then what will be the percentage ionisation of salt ?A. `33.33%`B. `50%`C. `75%`D. `100%` |
| Answer» Correct Answer - D | |
| 339. |
Which is incorrect ?A. `NaltAlltMgltSiIP_(1)`orderB. `VltCrltFeltMnIP_(3)`orderC. `PltSiltBeltMgltNaIP_(3)`Metallic CharacterD. `YbgtCegtLugtSm`order of atomic radius |
| Answer» Correct Answer - D | |
| 340. |
IUPAC Name of following compound is : A. 4-Methyl-5Chloro-nitrobenzeneB. 2-Chloro-1-Mthyl-4-nitrobenzeneC. 1-Chloro-2-methyl-5-nitrobenzeneD. 1-Methyl-2-chloro-4-nitrobenzene |
| Answer» Correct Answer - B | |
| 341. |
The substance used as froth stablisers in froth floatation process is :A. Copper sulphateB. AnilineC. Sodium cyanideD. Patassium ethyl xanthate |
| Answer» Correct Answer - B | |
| 342. |
DDT is manufactued by acid catalysed condensation of :A. Chloroform and acetoneB. Chloroform and nitric acidC. Chlorobenzene and chloralD. Chlorobenzene and chloroform |
| Answer» Correct Answer - C | |
| 343. |
Which of the following compound is used as refrigerant ?A. `CF_(4)`B. `C Cl_(4)`C. `C Cl_(2)F_(2)`D. `underset(OH)underset(|)(C)H_(2)-underset(OH)underset(|)(C)H_(2)` |
| Answer» Correct Answer - C | |
| 344. |
Which of the following is added to chloroform in a small quantity before is bottled for sale ?A. `CH_(2)OH`B. `C_(2)H_(5)Cl`C. `C_(2)H_(5)OH`D. `AgNO_(3)` |
| Answer» Correct Answer - C | |
| 345. |
The brown ring complex compound is formulated as `[Fe(H_(2)O)_(5)NO]SO_(4)`. The oxidation state of `Fe` isA. `+2`B. `+3`C. `+1`D. 0 |
| Answer» Correct Answer - C | |
| 346. |
In a vessel of 5L,26 moles of A and 4 moles of B were placed. At equilibrium 1 mole of C was present. The `K_(C)` for the reaction : `A+2bhArrC` isA. 0.25B. 0. 50C. 2.5D. 4.8 |
| Answer» Correct Answer - A | |
| 347. |
Which of the following is not true about `H_(2)O` molecule ?A. The molecule has `mu=0`B. The molecule can act as a baseC. Shows abnormally high boiling point in comparison to the hydrides of other elements of oxygen groupD. The molecule has a bent shape |
| Answer» Correct Answer - A | |
| 348. |
Match the following and choose the correct option given below (a) `N_(2)toN_(2)^(+)` (p) bond order increases (b) `N_(2)toN_(2)^(-)` (q) bond order decreases ( c) `O_(2)toO_(2)^(+)` ( r) paramagnetism decreases (d) `O_(2)toO_(2)^(-)` (s) paramagnetism desreases (t) No change in bond orderA. a-(q,r)b-(q,r),c-(p,s),d-(q,s)B. a-(q,s),b-(q,s),c-(p,s)d-(q,r)C. a-(p,q),b-(q,s),c-(p,r)d-(q,t)D. a-(p,s),b-(q,p),c-(q,t),d-(q,t) |
| Answer» Correct Answer - A | |
| 349. |
For poly basic acid , the dissociation constant have a different valves for each step. `H_(3)AhArrH^(+)+A,Keq=Ka_(1)` `H_(2)AhArrH^(+)+A^(-2),Keq=Ka_(2)` `HA^(2)hArrH^(+)+A^(3-),Keq=Ka_(3)` What is the observed trend of dissociation constant im successive stages ?A. `Ka_(1)gtKa_(2)gtKa_(3)`B. `Ka_(1)=Ka_(2)=Ka_(3)`C. `Ka_(1)ltKa_(2)ltKa_(3)`D. `Ka_(1)=Ka_(2)+Ka_(3)` |
| Answer» Correct Answer - A | |
| 350. |
Calculate the emf of the cell `Fe(s)+2H^(+)(1M)toFe^(+2)(0.001M)+H_(2)//(g),1 atm)` `(Given : E_(Fe^(+2)//Fe)=-0.44V)`A. 0.215 VB. 0.38 VC. `-0.48 V`D. 0.5285 V |
| Answer» Correct Answer - D | |