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.
| 451. |
The fraction of total volume ocupied by the atoms present in FCC is :-A. `(pi)/(6)`B. `(pi)/(3sqrt2)`C. `(pi)/(4sqrt2)`D. `(pi)/(4)` |
| Answer» Correct Answer - B | |
| 452. |
The product of oxidation of `I^(-)` with `MnO_(4)^(-)` in alkaline medium is:A. `IO_(3)^(-)`B. `I_(2)`C. `IO^(-)`D. `IO_(4)^(-)` |
| Answer» Correct Answer - A | |
| 453. |
The coordination number and number of carbon atoms in a unit cell of diamond is :-A. 4 and 4B. 4 and 8C. 8 and 4D. 6 and 6 |
| Answer» Correct Answer - B | |
| 454. |
(i) `underset(("A morphous solid"))(A)underset(air)overset(O_(2))(to)Boverset("lime water")(to)"milky"` (ii) Metal sulphide `overset("roasting")(to)underset(gas)Boverset(KMnO_(4)//H^(+))(to) "decolorisation of" KMnO_(4)` (iii) `underset((gas))Boverset(Fe^(3+))toFe^(2+)` Correct statement isA. A is FeOB. B is `CO_(2)`C. B is `SO_(2)`D. A is ZnS |
| Answer» Correct Answer - C | |
| 455. |
Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following are the characteristic properties of interstitial compounds? I. They have high melting points in comparison to pure metals. II. They are very hard. III. They retain metallic conductivity. IV. They are chemically very reactive.A. They have high melting points in comparison to pure metals.B. They are very hardC. They retain metallic conductivityD. They are chemically very reactive |
| Answer» Correct Answer - D | |
| 456. |
Select the correct statement for CsCI crystal :-A. `Cs^(+)` forms simple cubic lattice, `CI^(-)` forms simple cubic latticeB. `CI^(-)` occupies the body center of `Cs^(+)`C. `Cs^(+)` occupies the body center of `CI^(-)`D. All are correct |
| Answer» Correct Answer - D | |
| 457. |
Which of the following is not a ionic solid ?A. NaCIB. MgOC. CsCID. SiC |
| Answer» Correct Answer - B | |
| 458. |
For teragonal crystal, which statement is incorrect ?A. All the axial length are not equalB. Two axial angle are equalC. Two axial length are equalD. None of these |
| Answer» Correct Answer - C | |
| 459. |
The vacant space in simple cubic lattice unit cell is :-A. `32%`B. `52%`C. `48%`D. `25%` |
| Answer» Correct Answer - C | |
| 460. |
Arrange the following wavelenghts `(lamda)`of given emission lines of H atoms in increasing order Choose the correct option (1) `lamda_(4)ltlamda_(3)ltlamda_(2)ltlamda_(1)` (2)`lamda_(4)ltlamda_(2)ltlamda_(3)ltlamda_(1)` (3) `lamda_(1)ltlamda_(2)ltlamda_(3)ltlamda_(4)` (4) `lamda_(1)ltlamda_(3)ltlamda_(2)ltlamda_(4)`A. `n=3 overset(lamda_(1))rarr n=1`B. `n=12 overset(lamda_(3))rarr n=10`C. `n=5 overset(lamda_(2))rarr n=3`D. `n=22 overset(lamda_(4))rarr n=20` |
| Answer» Correct Answer - C | |
| 461. |
Correct order of `pK_(b)` is (i) `CH_(3)-CH_(2)-NH_(2)` (ii) `Ph-CH_(2)-NH_(2)` (iii) `H-underset(O)underset(||)(C)-NH-underset(O)underset(||)(C)-H` (iv) A. `igtiigtiiigtiv`B. `iiigtivgtigtii`C. `iiigtivgtiigti`D. `iigtigtiiigtiv` |
| Answer» Correct Answer - C | |
| 462. |
Which of the following carbanion is most stable ?A. `H_(3)C-overset(Theta)(CH_(2))`B. `H_(2)C=CH-overset(Theta)(CH_(2))`C. `H_(3)C-overset(O)overset(||)(C)-overset(Theta)(CH_(2))`D. `H_(3)C-overset(NH)overset(||)(C)-overset(Theta)(CH_(2)` |
| Answer» Correct Answer - C | |
| 463. |
Which of the following is correct order of acidic strength A. `IgtIIgtIIIgtIV`B. `IIIgtIIgtIVgtI`C. `IIgtIIIgtIVgtI`D. `IvgtIIgtIIIgtI` |
| Answer» Correct Answer - B | |
| 464. |
Correct order of basic strength in gas phase is (I) `CH_(3)-NH_(2)` (II) `(CH_(3))_(2)NH` (III) `(CH_(3))_(3)N` (IV) `NH_(3)`A. `IgtIIgtIIIgtIV`B. `IIgtIgtIIIgtIV`C. `IIIgtIIgtIgtIV`D. `IIgtIIIgtIgtV` |
| Answer» Correct Answer - C | |
| 465. |
Which among the following alkenes will be most stable :A. EtheneB. 2-Methyl propeneC. 2,3-Dimethyl-2-buteneD. 2-butene |
| Answer» Correct Answer - C | |
| 466. |
Correct order of stability of the following resonating structure is `CH_(2)=underset((a))(CH)-overset(O)overset(||)C-Hharroverset(Theta)(C)H_(2)-underset((b))(CH)=overset(Theta)overset(O)overset(|)(C)-Hharroverset(Theta)overset(* *)(C)H_(2)-underset((c ))(CH)=overset(o+)overset(O)overset(|)(C)-H`A. `agtbgtc`B. `agtcgtb`C. `bgtagtc`D. `cgtbgta` |
| Answer» Correct Answer - A | |
| 467. |
Which carbocation is most stableA. B. C. D. |
| Answer» Correct Answer - A | |
| 468. |
What is the correct order of decreasing stability of the following cations `H_(3)C-underset((I))overset(o+)(CH)-CH_(3)` , `H_(3)C-underset((II))overset(o+)(CH)-OMe` `H_(3)C-underset((III))overset(o+)(CH)-CH_(2)-OMe`A. `IIgtIgtIII`B. `IIgtIIIgtI`C. `IIIgtIgtII`D. `IgtIIgtIII` |
| Answer» Correct Answer - A | |
| 469. |
In nitromethane two N-O bond lengths are :A. a = bB. `agtb`C. `bgta`D. Can not be compared |
| Answer» Correct Answer - A | |
| 470. |
Which of the following is correct regarding formation of reactive inter mediate formed on heterolytic bond cleavage :A. `CH_(3)-S-CH_(3)tooverset(Theta)overset(* *)(C)H_(3)+CH_(3)-overset(Theta)(S)`B. `CH_(3)-Cutooverset(Theta)overset(* *)(C)H_(3)+overset(Theta)(C)u`C. `CH_(3)-Cl tooverset(Theta)overset(* *)(C)H_(3)+overset(Theta)(C)l`D. 1 & 2 both |
| Answer» Correct Answer - B | |
| 471. |
Which of the following group has maximum hyper conjugation effect but minimum inductive effectA. `-CH_(3)`B. `-CH_(2)-CH_(3)`C. `-CD_(3)`D. `-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(3)` |
| Answer» Correct Answer - A | |
| 472. |
Bond length and bond energy order is same for :A. `C-CgtSi-SigtGe-Ge`B. `N-NgtO-OgtF-F`C. `C-NgtC-OgtC-F`D. `F_(2)gtCl_(2)gtBr_(2)gtI_(2)` |
| Answer» Correct Answer - B | |
| 473. |
Which of the following statement are true and false ? (a) In `PCl_(5)` hybridisation is `sp^(3)`d and it has a trigonal pyramidal structure. (b) The angle between the P-Cl bonds is `90^(@),` which is same for all the P and Cl present in `PCl_(5)` The bond length of P-Ci in axial position is higher than in equitorial position `PCl_(5)` have zero dipole moment Choose the correct option.A. TFTTB. FTTTC. FFTTD. TFFT |
| Answer» Correct Answer - C | |
| 474. |
Aryl fluride may be prepared from arene diazonium chloride usingA. `CuF//HF`B. `Cu//HF`C. `HBF_(4)//Delta`D. `HBF_(4)//NaNO_(2),Cu` |
| Answer» Correct Answer - C | |
| 475. |
A plot of log `(x/m)` against log P for the adsorption of a gas on a solid gives a straight a straight line with slope equal to :A. `1//n`B. log KC. `-log K`D. n |
| Answer» Correct Answer - A | |
| 476. |
When the temperature is lowered and pressure is raised, the adsorption of a gas on a solidA. decreasesB. increasesC. remains unaffectedD. decreases first than increases |
| Answer» Correct Answer - B | |
| 477. |
In freundlich adsorption isotherm, the value of 1/n is :A. 1 in case of physical adsorptionB. 1 in case of chemisorptionC. Between 1 and 1 in all casesD. Between 2 and 4 in all cases |
| Answer» Correct Answer - C | |
| 478. |
Which of the following is true in respect of chemical adsorption?A. `DeltaHlt0,DeltaSgt0,DeltaGgt0`B. `DeltaHlt0,DeltaSlt0,DeltaGlt0`C. `DeltaHgt0,DeltaSgt0,DeltaGgt0`D. `DeltaHgt0,DeltaSlt0,DeltaGgt0` |
| Answer» Correct Answer - B | |
| 479. |
Extent of physisorption of a gas increases with ………. .A. increasesB. decreasesC. first increases then decreasesD. remains unchaged |
| Answer» Correct Answer - B | |
| 480. |
which of the following factors affects the adsorption of a gas on solid ?A. Criticle temperature`(T_(C))`B. temperature of gasC. Pressure of gasD. All of these |
| Answer» Correct Answer - D | |
| 481. |
for the coagulation of 50 mL of ferric hydroxide sol 10 mL of 0.5 M KCl is required. What is the coagulation value of KCl ?A. 5B. 10C. 100D. None of these |
| Answer» Correct Answer - C | |
| 482. |
How many chiral compounds are possible on mono-chlorination of - Methyl butane ?A. 6B. 8C. 2D. 4 |
| Answer» Correct Answer - D | |
| 483. |
`underset(("element having atomic Number" = 53))"Ferric Ion+Mono valent anion" to x+y` x and y are-A. `Fe^(0)` & Iodate ionB. `Fe^(+2)` & Per iodate ionC. `Fe^(2+)` & `I_(2)`D. `Fe^(2+)` & `FeI_(3)` |
| Answer» Correct Answer - C | |
| 484. |
For the given complex `[CoCl_(2)(en)(N_(3))_(2)]^(+)`, the number of geometrical iosmers, the number of optical isomers and total number of isomers of all type possible respectively areA. 2,2,4B. 2,2,3C. 2,0,2D. 0,2,2 |
| Answer» Correct Answer - B | |
| 485. |
In the closed packing of atoms A `("radius":r_(a))`, the radius of atom B that can be fitted into tetrahedral void is:A. `0.155 r_(a)`B. `0.225 r_(a)`C. `0.414 r_(a)`D. `0.732 r_(a)` |
| Answer» Correct Answer - B | |
| 486. |
A freshly prepared `Fe(OH)_(3)` precipitate is peptized by adding `FeCl_(3)` solution. The charge on the colloidal particle is due to preferential adsorption ofA. `CI^(-)ions`B. `Fe^(+++)ions`C. `OH^(-)ions`D. None of these |
| Answer» Correct Answer - B | |
| 487. |
Which of the following is not a disproprotionation reaction? I. `NH_(4)NO_(3)overset(Delta)rarrN_(2)O+H_(2)O` II. `P_(4)overset(Delta)rarrPH_(3)+HPO_(2)^(ө)` III. `PCl_(5)overset(Delta)rarrPCl_(3)+Cl_(2)` IV. `IO_(3)^(ө)+I^(ө)rarrI_(2)`A. I,IIB. I,III,IVC. II,IVD. I,III |
| Answer» Correct Answer - B | |
| 488. |
Which of the following intermediate is formed in Reimer-Teimann reaction ?A. CarbocationB. CarbanionC. CarbeneD. Free radical |
| Answer» Correct Answer - C | |
| 489. |
Which one can gives propanamine on reaction with `LiAlH_(4)`A. Propyl cyanideB. N-Methyl PropanamideC. Propane mitrileD. Both (1) & (3) |
| Answer» Correct Answer - C | |
| 490. |
n-propyl bromide reacts with aqueous KOH to form:-A. PropaneB. PropeneC. PropyneD. Propanol |
| Answer» Correct Answer - D | |
| 491. |
When `CH_(2)=CH -CO OH` is reduced with `LiAlH_(4)` the compound obtained will beA. `CH_(3)-CH_(2)-COOH`B. `CH_(2)=CH-CH_(2)-OH`C. `CH_(3)-CH_(2)-CH_(2)-OH`D. `CH_(3)-CH_(2)-CHO` |
| Answer» Correct Answer - B | |
| 492. |
When phenol is treated is treated with bromine `//H_(2)O`, it gives:-A. O-and p-dibromo phenolB. 2,3,4-tribromophenolC. 2,4,6-tribromo phenolD. None |
| Answer» Correct Answer - C | |
| 493. |
Phenol and succinic acidA. Phenol and phthalic anhydrideB. Phenol and succinic anhydrideC. Phenol and benzaldehydeD. Phenol and benzaldehyde |
| Answer» Correct Answer - B | |
| 494. |
In the given reaction: `CH_(3)-CH_(2)-CH_(2)-O-CH_(2)-CH_(3) overset(HCI//Delta)rarr [X] +[Y] [X]` and `[Y]` wil respectively be:A. `CH_(3)CH_(2)CH_(2)OH` and `CH_(3)CH_(2)Cl`B. `CH_(3)CH_(2)CH_(2)Cl` and `CH_(3)CH_(2)OH`C. `CH_(3)CH_(2)CH_(2)Cl` and `CH_(2)=CH_(2)`D. `CH_(3)-CH=CH_(2)` and `CH_(2)=CH_(2)` |
| Answer» Correct Answer - A | |
| 495. |
Rectified spirit contains :A. 94.6% `C_(2)H_(5)OH`B. 95.6% `C_(2)H_(5)OH`C. 96.6% `C_(2)H_(5)OH`D. 97.6% `C_(2)H_(5)OH` |
| Answer» Correct Answer - B | |
| 496. |
Phenol react with `PCl_(5)` to give mainlyA. p-chlorophenolB. chlorobenzeneC. o-and p-chlorophenolD. Triphenyl phosphate |
| Answer» Correct Answer - D | |
| 497. |
Which of these will not react with acetylene?A. NaOHB. Ammonical `AgNO_(3)`C. NaD. HCl |
| Answer» Correct Answer - A | |
| 498. |
Minimum reactive towards dehydration in acidic mwdiumA. B. C. D. |
| Answer» Correct Answer - C | |
| 499. |
Q does not react withA. NaB. NaOHC. `NaHCO_(3)`D. `Zn,Delta` |
| Answer» Correct Answer - C | |
| 500. |
Ethylene glycon an oxidation with periodic acid gives :A. Oxalic acidB. GlyoxalC. FormaldehydeD. Glycolic acid |
| Answer» Correct Answer - C | |