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. |
Which of the following compounds is oxidized to prepare methylethyl ketone ?A. 2-propanolB. 1-butanolC. 2-butanolD. t-butyl alcohol |
| Answer» Correct Answer - c | |
| 302. |
`C_(2)H_(5)O-overset(O)overset(||)(C )-OC_(2)H_(5) overset(2MeMgBr)(rarr) (A)`. The product `(A)` formed can:A. is ethyl acetate.B. further react with `CH_(3)MgBr//H_(2)O^(+)` to give acetone.C. further react with `CH_(3)MgBr//H_(2)O^(+)` to give t-butyl alcohol.D. (a) and (b) are correct. |
| Answer» Correct Answer - c | |
| 303. |
Phenol and benzoic acid is separated by :A. `NaHCO_(3)`B. NaOHC. NaD. `NaNH_(2)` |
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Answer» Correct Answer - a `{:(PhOH+NaHCO_(3)rarr"No reaction"` `{:(PhCOOH+NaHCO_(3)rarrPhCOoverset(Θ)O Na^(o+)+H_(2)O+CO_(2)),(" (salt)"):}` |
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| 304. |
The product is :A. B. C. D. |
| Answer» Correct Answer - d | |
| 305. |
D is :A. B. C. D. |
| Answer» Correct Answer - c | |
| 306. |
Structure of X is :A. `underset(OH)underset(|)(C )H_(2)-underset(OH)underset(|)(C )H_(2)`B. `underset(OH)underset(|)(C )H_(2)-underset(OH)underset(|)(C )H_(2)-CH_(3)`C. `CH_(3)-overset(O)overset(||)(C )-CH_(3)`D. |
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Answer» Correct Answer - c The new linkages formed in the product and ketal are formed by `CH_(3)-underset(O)underset(||)C-CH_(3)` and cis-c=vic-alcohols. |
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| 307. |
End product of above reaction is :A. `CH_(2)=CH-CH_(2)-overset(CH_(2))overset(||)C-CH_(3)`B. `H_(2)C=CH-CH=underset(CH_(3))underset(|)C-CH_(3)`C. `H_(2)C=CH-CH-underset(CH_(3))underset(|)overset(OH)overset(|)C-CH_(3)`D. `H_(2)C=CH-CH_(2)-underset(CH_(3))underset(|)C-CH_(3)-OH` |
| Answer» Correct Answer - d | |
| 308. |
A is :A. B. C. D. |
| Answer» Correct Answer - b | |
| 309. |
This reaction is called as :A. esterificationB. decarboxylationC. saponificationD. Schotten Baumann reaction |
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Answer» Correct Answer - c hydrolysis of ester in base medium is called saponification because it forms soap in the reaction. |
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| 310. |
STATEMENT - 1 : Propan -2, 2-diol is unstable. STATEMENT - 2 : Repusion between lone pairs of electron of two OH groups makes its unstable.A. Statement - 1 is true, Statement - 2 is Ture, Statement-2 is a correct explanation for Statement-1.B. Statement -1 is True , Statement -2 is False.C. Statement -1 is False , Statement -2 is True.D. Statement -1 and Statement -2 both are False. |
| Answer» Correct Answer - c | |
| 311. |
MajorA. B. C. D. |
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Answer» Correct Answer - c Oxidation of secondary alcohol. |
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| 312. |
STATEMENT - 1 : Cyclohexanol is less souble in water than 1-hexanol. STATEMENT - 2 : 1- hexanol can from intermoleculae H-bond with `H_(2)O`.A. Statement - 1 is true, Statement - 2 is Ture, Statement-2 is a correct explanation for Statement-1.B. Statement -1 is True , Statement -2 is False.C. Statement -1 is False , Statement -2 is True.D. Statement -1 and Statement -2 both are False. |
| Answer» Correct Answer - a | |
| 313. |
On treatment with Lucas reagent , there is an appearance of a precipitate at once. This is a :A. primary alcoholB. secondary alcoholC. tertiary alcoholD. none of these |
| Answer» Correct Answer - c | |
| 314. |
STATEMENT - 1 : MESH is more basic than MeOH. STATEMENT - 2 : O is more electrongative than S.A. Statement - 1 is true, Statement - 2 is Ture, Statement-2 is a correct explanation for Statement-1.B. Statement -1 is True , Statement -2 is False.C. Statement -1 is False , Statement -2 is True.D. Statement -1 and Statement -2 both are False. |
| Answer» Correct Answer - d | |
| 315. |
The best method to prepare cuclohexane from cyclohexanol is by using :A. conc. HCl + `ZnCl_(2)`B. conc. `H_(3)PO_(4)`C. HBrD. conc.HCl |
| Answer» Correct Answer - b | |
| 316. |
A is :A. B. C. D. |
| Answer» Correct Answer - d | |
| 317. |
Compound on hydrolysis in aqueous acetone will be : A. Mixture of (I) and (II)B. Mixture of (I) and(III)C. only(III)D. only(I) |
| Answer» Correct Answer - a | |
| 318. |
possible product can be :A. B. C. D. |
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Answer» Correct Answer - a,b,c (a) Minor product KCP by 1,2-addtion. (b) Minor product by 1,4--adentical. |
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| 319. |
Which of the following alcohols connot be prepared from an alkene?A. B. C. D. |
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Answer» Correct Answer - b `beta` position of -OH is a `3^(@)` so it connot form a double bond. |
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| 320. |
An organic compound A containing C = 70% and H =11.6% gave the following results : (P) 0.384 gm of the compound A displaced 100 ml of air at 1 atm and 273 K. (Q) On treatment with `PCl_(3)`A gave another compound, which contained 33.97%(34%)chlorine. An ismor of it B gave compound C containing 50.35% chlorine with `PCl_(5)`.C gives back B with aq. KOH correct structure of B is:A. pent-4-en-1-olB. cyclopentanoneC. 1,3-epoxypentaneD. 3-pentanone |
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Answer» Correct Answer - d `{:(" "O),(" "||),(CH_(3)-CH_(2)-C-CH_(2)CH_(3)),(" "downarrowPCl_(5)),(" "Cl),(" "|),(CH_(2)-CH_(2)-C-CH_(2)-CH_(3)(50.33%Cl)),(" "|),(" "Cl):}` |
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| 321. |
STATEMENT - 1 :Boiling point of ethanol is more than ethylene glycol. STATEMENT - 2 : Ethylene glycol forms intramolecular H-bonding.A. Statement - 1 is true, Statement - 2 is Ture, Statement-2 is a correct explanation for Statement-1.B. Statement -1 is True , Statement -2 is False.C. Statement -1 is False , Statement -2 is True.D. Statement -1 and Statement -2 both are False. |
| Answer» Correct Answer - d | |
| 322. |
Select reaction with correct major product :A. B. C. D. |
| Answer» Correct Answer - c,d | |
| 323. |
Which mechainsm is not seen during the hydrolysis of ester ?A. `A_(AC^(2))`B. `B_(AC^(2))`C. `A_(AL^(2))`D. `B_(AL^(2))` |
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Answer» Correct Answer - c `A_(AL^(2))` is not found during ester hydrolysis as `H_(2)O` is a poor nucleophile. |
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| 324. |
Correct rate of reaction with PhMgBr is :A. `Ph-overset(O)overset(||)C-Clgt Ph-overset(O)overset(||)C-Me gt Ph-overset(O)overset(||)C-OMe`B. `Ph-overset(O)overset(||)C-Megt Ph-overset(O)overset(||)C-Cl gt Ph-overset(O)overset(||)C-OMe`C. `Ph-overset(O)overset(||)C-OMegt Ph-overset(O)overset(||)C-Cl gt Ph-overset(O)overset(||)C-Me`D. `Ph-overset(O)overset(||)C-Clgt Ph-overset(O)overset(||)C-OMe gt Ph-overset(O)overset(||)C-Me` |
| Answer» Correct Answer - a | |
| 325. |
`Ph-overset(O)overset(||)C-O-CPh_(3)-overset(H_(3)overset(18)O^(o+))rarr` Product of this reaction is :A. `Ph-overset(O)overset(||)C-OH+Ph_(3)C-overset(18)OH`B. `Ph-overset(O^(18))overset(||)C-OH+Ph_(3)C-OH`C. `Ph-overset(O)overset(||)C-overset(18)OH+Ph_(3)C-overset(18)OH`D. `Ph-overset(O)overset(||)C-overset(18)OH+Ph_(3)C-OH` |
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Answer» Correct Answer - a Esters which give stable carbocation reacts by `A_(AL^(1))`mechanical. |
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| 326. |
Product is/ are :A. B. C. D. |
| Answer» Correct Answer - a,b | |
| 327. |
Conversion can be carried out by :A. `LiAlH_(4)`B. DiBAL-HC. 9BBND. all of these |
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Answer» Correct Answer - d Given inter aonversion can be achieved by any one i.e., LAH or DiBAL-H or 9BBN. |
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| 328. |
(Number of organic product formed.) |
| Answer» Correct Answer - 2 | |
| 329. |
An organic compound A containing C = 70% and H =11.6% gave the following results : (P) 0.384 gm of the compound A displaced 100 ml of air at 1 atm and 273 K. (Q) On treatment with `PCl_(3)`A gave another compound, which contained 33.97%(34%)chlorine. An ismor of A and B which gives two organic product with `PCl_(5)` is :A. B. C. `CH_(2)=CH-CH_(2)-O-CH_(2)-CH_(3)`D. `CH_(2)=CH-CH_(2)-underset(OH)underset(|)CH-CH_(3)`` |
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Answer» Correct Answer - c `{:(CH_(2)=CH-CH_(2)-O-CH_(2)-CH_(3)),(" "downarrowPCl_(5)),(CH_(2)=CH-CH_(2)+CH_(2)-CH_(3)("Two products")),(" "|" "|),(" "Cl" "Cl):}` |
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| 330. |
`PhMgClunderset((ii)H_(2)O)overset((i)H-C-=-=N)rarr`Major product is :A. B. C. D. |
| Answer» Correct Answer - c | |
| 331. |
Find out the number of 1-2 shifts during the conversion of |
| Answer» Correct Answer - 3 | |
| 332. |
A is :A. B. C. D. MeOH |
| Answer» Correct Answer - b | |
| 333. |
`CH_(3)-underset(H)underset(|)overset(o+)C-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(3)rarr Me_(3)C-I+Me -OH`ture about this is :A. `Me_(3)C-Ome` with anhydrous HI gives this reactionB. `Me_(3)C-O Me` with concentrated HI gives this reactionC. both of the aboveD. none of the above |
| Answer» Correct Answer - c | |
| 334. |
and B are :A. `CH_(3)-underset(underset(18)OH)underset(|)overset(CH_(3))overset(|)C-underset(OH)underset(|)CH_(2),CH_(3)-underset(OH)underset(|)overset(CH_(3))overset(|)C-underset(OCH_(3))underset(|)CH_(2)`B. `CH_(3)-underset(OH_(18))underset(|)overset(CH_(3))overset(|)C-underset(OH)underset(|)CH_(2),CH_(3)-underset(OH)underset(|)overset(CH_(3))overset(|)C-underset(OCH_(3))underset(|)CH_(2)`C. `CH_(3)-underset(underset(18)OH)underset(|)overset(CH_(3))overset(|)C-underset(OH)underset(|)CH_(2),CH_(3)-underset(underset(18)OH)underset(|)overset(CH_(3))overset(|)C-underset(overset(18)OH)underset(|)CH_(2)`D. `CH_(3)-underset(underset(18)OH)underset(|)overset(CH_(3))overset(|)C-underset(overset(18)OH)underset(|)CH_(2),CH_(3)-underset(OCH_(3))underset(|)overset(CH_(3))overset(|)C-underset(OH)underset(|)CH_(2)` |
| Answer» Correct Answer - a | |
| 335. |
Rate of hydration of :A. I lt II lt IIIB. I lt III lt IIC. II lt I lt IIID. III lt II lt I |
| Answer» Correct Answer - c | |
| 336. |
Product of the following reaction are: A. B. C. D. |
| Answer» Correct Answer - a,d | |
| 337. |
Number of fractions obtained during fraction distillation of aM :A. 5B. 6C. 7D. 8 |
| Answer» Correct Answer - d | |
| 338. |
Among various alkyl halide which one is the most reaction towards `S_(N)1` reaction. |
| Answer» Correct Answer - 3 | |
| 339. |
In the following reaction, final product is : A. `ClCH_(2)underset(OH)underset(|)CHoverset(14)CH_(2)OC_(2)H_(5)`B. `ClCH_(2)underset(OC_(2)H_(5))underset(|)Coverset(14)H_(2)ON a`C. D. |
| Answer» Correct Answer - d | |
| 340. |
Final product of oxidation of `MeCH_(2)-CH_(2)OH` is :A. `MeCH_(2)CH=O`B. `MeCH_(2)COOH`C. `MeCH_(2)CH_(3)`D. none of these |
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Answer» Correct Answer - d Final product of oxidation is `CO_(2)+H_(2)O`. |
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| 341. |
How many gms of cyclohexane will be formed in the above rection(Consider the yield to be 100% in each step)?A. 1.68 gmB. 8.40 gmC. 16.80 gmD. 0.84 gm |
| Answer» Correct Answer - b | |
| 342. |
A on reaction with Br-Cl gives :A. B. C. D. |
| Answer» Correct Answer - c | |
| 343. |
Product of following reaction can be : A. B. C. D. |
| Answer» Correct Answer - b,c,d | |
| 344. |
An organic compound A containing C = 70% and H =11.6% gave the following results : (P) 0.384 gm of the compound A displaced 100 ml of air at 1 atm and 273 K. (Q) On treatment with `PCl_(3)`A gave another compound, which contained 33.97%(34%)chlorine. IUPAC anme of the compound A is :A. pentanalB. 2- pentanoneC. cyclopentanolD. 1,3-epoxypentane |
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Answer» Correct Answer - c For empirical formula `{:("Element",%,"At.Wt.","Ralative ratio","Simple ratio"),(C,70,12,5.83,5.06(5)),(H,11.6,1,11.6,10.086(10)),(O,18.4,16,1.15,1(0)):}` So, organic compound`(C_(5)H_(10)O)_(x)` Molecular waight`=(WRT)/(PxxV)=(0.384xx0.0821xx273)/(1xx(100)/(1000))` `" "=86` `" "86xx = 86` `rArr" "`x = 1 So, compounA is `C_(5)H_(10)O`. If compound A is alodohol. `C_(5)H_(10)Ooverset(PCl_(5))rarrC_(5)H_(9)Cl` `(12xx5+9+35.5=104.5)" "(%Cl=(35.5)/(104.5)=33.97)` |
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| 345. |
For the reaction Final product is :A. B. C. D. |
| Answer» Correct Answer - d | |
| 346. |
Major product is :A. B. C. D. |
| Answer» Correct Answer - d | |
| 347. |
Compounds which can give periodic cleavage are :A. B. C. D. |
| Answer» Correct Answer - a,b,c,d | |
| 348. |
Which of the following will produce same visual change as p-1 with `Br_(2)` water?A. B. C. D. None of these |
| Answer» Correct Answer - b | |
| 349. |
What will be the final product when elthyl benzene is treated with the reeagent listed, below? (P)NBS, peroxide, heat (Q)alcoholic KOH, `(/_)` ( R ) `B_(2)H_(6)` (S) `H_(2)O_(2),HO_(Θ)`A. `Ph-CH_(2)-CH_(2)-OH`B. `PH-underset(Br)underset(|)CH-H_(2)-OH`C. `PH-overset(OH)overset(|)CH-CH_(3)`D. `Ph-underset(OH)underset(|)CH-CH_(2)Br` |
| Answer» Correct Answer - a | |
| 350. |
Which of the following will periodic cleavage ?A. `MeOC-overset(OH)overset(|)CH-underset(OH)underset(|)CH-COOMe`B. C. `Me-underset(OH)underset(|)CH-underset(NH_(2))underset(|)CH-Me`D. `Me-underset(OH)underset(|)CH-CH_(2)-OH` |
| Answer» Correct Answer - a,b,c,d | |