Explore topic-wise InterviewSolutions in Current Affairs.

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.

CH_(3)-underset(I)underset(|)(CH)-CH_(3)

Answer»

Solution :Propene on reaction with HYDROGEN IODIDE forms `CH_(3)-CHI-CH_(3)`
`underset("propene")(CH_(3)-CH=CH_(2)+HI) to CH_(3)-underset(I)underset("2-Iodopropane")underset(|)(CH)-CH_(3)`
Discussion
2.

CH_(3)-underset((I))(CH_(2))-CH=CH_(2) "" CH_(3) -underset((II)) (CH)=CH_(2) In additon of HBr in I and II

Answer»

BR is at `C_(2)` in both the case
Br is ART `C_(2)` in II and at `C_(1)` in I
Br is at `C_(2)` in II and at `C_(1)` in II
Br is at `C_(1)` in both the CASES

SOLUTION :Addition of HBr across C=C bodns takes place according to Markownikoff's rule.
Discussion
3.

CH_(3)-underset(H)underset(|)overset(CH_(3))overset(|)(C)-underset(OH)underset(|)(CH)-CHO underset(Delta)overset(NaOH)rarr The product of the above reaction is called

Answer»

HOFMANN product
Saytzeff product
Zaitsev product
Cannizzaro product

Answer :A
Discussion
4.

CH_(3)-underset((d))overset(C_(2)H_(5))overset(|)(CH)-COOH+CH_(3)-underset((d+l))overset(C_(2)H_(5))overset(|)(CH)-OH overset(H_(3)O^(o+))to x + y the organic products x and y are :

Answer»

Enantiomers
Diasteremoers
Metamers
Achiral molecules

Answer :B
Discussion
5.

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 :

Answer»

`Me_(3)C-Ome` with anhydrous HI GIVES this reaction
`Me_(3)C-O Me` with CONCENTRATED HI gives this reaction
both of the above
none of the above

Solution :N//A
Discussion
6.

CH_(3)- underset(H)underset(|)overset(CH_(3))overset(|)C- CH_(2)Br underset(CH_(3)OH)overset(CH_(3)O^(-))to X What is X?

Answer»

`CH_(3)-underset(CH_(3))underset(|)CH-CH_(2)-O-CH_(3)`
`CH_(3)- underset(OCH_(3))underset(|)CH-CH_(2).CH_(3)`
`CH_(3)-underset(CH_(3))underset(|)C=CH_(2)`
`CH_(3)-underset(CH_(3))underset(|)OVERSET(CH_(3))overset(|)C-CH_(3)`

Solution :`CH_(3)-underset(CH_(3))underset(|)C=CH_(2)`
Discussion
7.

CH_(3)-underset(Cl)underset(|)CH-CH_(2)-CH=CH-CH_(3) How many stereo-isomer does this molecule have :-

Answer»

8
2
4
6

Answer :C
Discussion
8.

CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-O"Na" + CH_(3)CH_(2)Cl to CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)C-OCH_(2)CH_(3) The above reaction is called

Answer»

GATTERMAN reaction
WILLIAMSON ether synthesis
Swern's reaction
Riemer tiemann reaction

ANSWER :B
Discussion
9.

CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C0-O-CH_(2)-C_(6)H_(5) can be prepared from Williamson's ether synthesis using :

Answer»

`CH_(3)-UNDERSET(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-Cl` and `C_(6)H_(5)CH_(2)O^(-)Na`
`C_(6)H_(5)CH_(2)Cl` and `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-O^(-)Na^(+)`
`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH_(2)Cl` and `C_(6)H_(5)O^(-)Na`
all of the above

Answer :B
Discussion
10.

CH_(3)-underset(CH_(3))underset(|)overset(Br)overset(|)C-CH_(3) underset("-HBr")underset(Delta)overset(Alc. NH_(3))to Y. Y is this reaction is ________ .

Answer»

2-methylpropan-2-amine
2-methylpropene
2-amino-2-methylpropane
but-2-ene

Answer :C
Discussion
11.

CH_(3) - underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C ) - Br underset(Delta)overset("KOH(aloholic)")(rarr) (A) overset(HBr//R_(2)O_(2))(rarr)underset("(major)")((B))

Answer»

`CH_(3) - underset(H)underset(|)overset(CH_(3))overset(|)(C ) -CH_(2)- Br`
`CH_(3) - underset(Br)underset(|)overset(CH_(3))overset(|)(C ) -CH_(2)`
`CH_(3) - underset(CH_(2)-Br)underset(|)overset(CH_(3))overset(|)(C ) -OH`
`CH_(3) - underset(CH_(3))underset(|)overset(CH_(2)-H)overset(|)(C ) - Br`

Answer :A
Discussion
12.

CH_(3)-underset(CH_(3))underset(|)CH-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(2)-NH_(2)overset(HNO_(2))rarrX(major) Major product of above reaction is :

Answer»




SOLUTION :N//A
Discussion
13.

CH_(3)-underset(CH_(3))underset(|)(C)H-CH=CH_(2)=overset("Reagent")toAlcohol Which is true about alcohol and Reagent?

Answer»


ANSWER :A::B::C
Discussion
14.

CH_(3)-underset(CH_(3))underset(|)(C)H-CH=CH_(2)overset("Reagent R")(rarr)Alcoholwhich is / are true about alcohol and R ?

Answer»

`{:("Alcohol","Reagent (R)",,,),(CH_(3)underset(CH_(3))underset(|)(C)H-CH_(2)-CH_(2)OH,BH_(3)//THFH_(2)O_(2)//OH^(-),,,):}`
`{:("Alcohol","Reagent (R)",,,),(CH_(3)underset(CH_(3))underset(|)(C)H-underset(OH)underset(|)(C)H-CH_(2)OH,Hg(OAc)_(2)//NaBH_(4)-H_(2)O,,,):}`
`{:("Alcohol","Reagent (R)",,,),(CH_(3)underset(CH_(3))underset(|)overset(OH)overset(|)(C)H-CH_(2)-CH_(3),overset(+)(H_(3))O,,,):}`
None of the above

Answer :A,B,C
Discussion
15.

CH_3-underset(CH_3)underset(|)CH-CH=CH_2+HBroverset("Peroxide")rarrA (predominant), A is

Answer»




NONE of the above

Answer :B
Discussion
16.

CH_(3)-underset(CH_(3))underset(|)CH-CH=CH_(2)+H_(2)O overset(H^(+))toX What is X ? Suggest the mechanism.

Answer»

Solution :X is 2-methyl-2-butanol. 
`CH_3-underset(CH_3)underset(|)(CH)-CH=CH_2overset(H^+)(rarr)CH_3-underset(CH_3)underset(|)(CH)-overset(o+)(CH)-CH_3 overset("REARRANGES")(rarr)CH_3underset(CH_3)underset(|)overset(o+)(C )underset(-H^+)overset(+H_2O)(rarr)CH_3-underset(CH_3)underset(|)overset(OH)overset(|)(C )-CH_2CH_3`.
Discussion
17.

CH_(3) - underset(CH_(3))underset(|)(CH) - CH = CH_(2) overset("Reagent R")rarr Alcohol Which is true about alcohol and R ?

Answer»

`{:("ALCOHOL","Reagent"),(CH_(3)-CH-CH_(2)-CH_(2)OH,B_(2)H_(6)","H_(2)O_(2)//NAOH),(""|,),(""CH_(3),):}`
`{:("Alcohol","Reagent",),(CH_(3) - CH - CH - CH_(3),,),(""|""|,,),(""CH_(3) ""OH,,):}`
`PdCl_(2), H_(2)O, O_(2)//LAH`
`CH_(3) - underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH CH`
`Hg (OAC)_(2), H_(2)O//NaBH_(4)`
`CH- underset(CH_(3))underset(|)overset(OH)overset(|)(C) - CH_(2)CH_(3)`
dil. `H_(2)SO_(4)`

Answer :A::B::D
Discussion
18.

CH_(3) -underset(CH_(3))underset(|)CH – CH = CH_(2) underset( "2)" H_(2)O_(2), OH^(-))overset("1)" B_(2)H_(6))to A Here 'A' is

Answer»

3 - METHYL - 2 - butanol
3 - methyl - 1 - butanol
2 - methyl - 2 - butanol
2 - methyl - 1 - butanol

Answer :B
Discussion
19.

CH_(3)-underset(CH_(3)) underset(|)(CH)-CH_(2)-CH_(3) If the Newmann projection of above compound can be written as mentioned below How many combinations for a,b respectively are possible?

Answer»


Solution :`a, B` can be `H, H` or `H, CH_(3)` or `CH_(3)` or `CH_(3), H` or `CH_(3), CH_(3)` or `H, C_(2)H_(5)` respectively.
Discussion
20.

CH_3-underset(Br)underst(|)(CH)-CH_2-CH_3 overset(Me_3COK)(rarr)X. The product 'X' is

Answer»

`CH_2=CH-CH_2-CH_3`
`CH_3-CH=CH-CH_3`
`CH_3-CHOH-CH_2-CH_3`
`(CH_3)_2 C = CH_2`

ANSWER :A
Discussion
21.

CH_(3)-underset(Br)underset(|)CH-overset(O)overset(||)-OC_(2)H_(5),IUPAC name of compound is :-

Answer»

3-Bromoethyl propanoate
Ethyl-2-bromopropanoate
3-Bromopentanoate
Ethyl-3-bromobutanoate

Answer :B
Discussion
22.

CH_(3)-underset(Br) underset(|) (CH)-CH_(2)-CH_(3) is obtained by bromination of n-butane. The catyls is

Answer»

U.V. light
`AlBr_(3)`
`LiAlH_(4)`
`SN+` CONC HCl

Answer :B
Discussion
23.

CH_3-oversetunderset(|)(Cl)(C )H -CH_2CH_3 overset(Cl_2. hv)(to) 2,3-dichloro-butane which statement is right regarding the product obtained above

Answer»

TWO stereoisomeric PRODUCTS are obtained
Both of them are optically active
They are DIASTEREOISOMERS
One is optically active and the other is INACTIVE

Solution :
Discussion
24.

CH_(3)-overset(O)overset(||)(C)-underset(O)underset(||)(C)-OH overset((i)NH_(3)//Delta)underset((ii)NaBH_(4))rarrunderset(C)underset(darrDelta)(A) overset(HNO_(2))rarrunderset(D)underset(darrDelta)B

Answer»


ANSWER :`(##RES_ORG_CHM_V02_XII_C04_E01_277_A01##)`
Discussion
25.

CH_(3) - overset(O)overset(||)(C ) - OH underset(Delta)overset(CaO)(rarr)(A)underset(Delta)overset(KOH)(rarr) (B) underset(("Prolonged treatment"))overset(D_(2)//DO^(oplus))(rarr) (C ) How many hydrogen is replaced by Deuterium

Answer»

2
10
7
8

Answer :B
Discussion
26.

CH_(3)-overset(O)overset("||")C-OCMe_(3)overset(H_(2)overset18O)underset(H_(2)SO_(4))rarr" Products":

Answer»

`CH_(3)-OVERSET(18)overset(O)overset("||")C-OH+Me_(3)C-OH`
`CH_(3)-overset(O)overset("||")C-OH+Me_(3)C-overset(18)OH`
`CH_(3)-overset(O)overset("||")C-overset(18)OH+Me_(3)C-OH`
`CH_(3)-overset(O)overset("||")C-OH+Me_(3)C-OH`

Answer :B
Discussion
27.

CH_3-overset(O)overset(||)C-OC_2 H_5+CH_3-overset(O)overset(||)C-O-C_2H_5 overset(C_2 H_5 O^(Theta) Na^(o+) C_2 H_5 OH)to. How many different products (including stereo)would beform by above reaction.

Answer»


SOLUTION :Claisen-ester CONDENSATION
Discussion
28.

CH_(3)-overset(O)overset(||)(C)-CH_(3)+CH_(3)-CH_(2)-overset(O)overset(||)(C)-CH_(3)underset(Delta)overset(KOH(aq.))to(X) X=Number of aldol condensation product (including stereoisomer). Find out the value of (X).

Answer»

SOLUTION :
.
Discussion
29.

CH_(3)-overset(O)overset(||)C-H " and"CH_(3)-overset(O)overset(||)C-CH_(3) is differentiated by :

Answer»

TOLLEN'REAGENT
Fehling
iodoform
`NaHSO_(3)`

Solution :Tollen's reagent, Fehling REACT with `CH_(3)CHO` not with `CH_(3)COCH_(3)`.
Discussion
30.

CH_(3)-overset(O)overset("||")(C)-CH_(2) overset(CH_(2)N_(2))(rarr)(X) overset(CF_(3)CO_(3)H)(rarr) Major Product (Y) is

Answer»

`CH_(3) -overset(O)overset("||")(C)-O-CH_(3)`
`CH_(3)-overset(O)overset("||")(C)-O-CH_(2)-CH_(3)`
`CH_(3)^(-)CH_(2)^(-)overset(O)overset("||")(C)-O-CH_(3)`
`CH_(3)-CH_(2)-CH_(2)-O-CH_(3)`

Answer :B
Discussion
31.

CH_(3) - overset(O) overset(||)(C) - CH_(3)can be converted to CH_(3) - COOH by following method. (1) CH_(3) - COCH_(3) overset(I_(2)+NaOH) to (2) CH_(3) - COCH_(3) overset(K_(2)Cr_(2)O_(7)+H^(+)) to (3) CH_(3) - COCH_(3) overset(Ag(NH_(3))_(2)^(+)) to

Answer»

only 2
1 and 2
2 and 3
1 and 3

ANSWER :B
Discussion
32.

CH_(3)-overset(OH)overset(|)underset(H)underset(|)(C )-CN is

Answer»

ACETALDEHYDE cyanohydrin
Acetone cyanohydrin
Cyanoethanol
Ethanol nitrile

Answer :A
Discussion
33.

CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)C-CH_(2)OH How this compound respond the Lucas test?

Answer»

No REACTION
Coloured LAYER formed
Oily DROPLETS appear
Mixture BECOMES MILKY white

Solution :No reaction
Discussion
34.

CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C )-CHO shows Cannizzaro's reaction due to

Answer»

Carbon is bounded by 3 METHYL groups
Absence of `alpha`-hydrogen atom
Due to steric effect
None of these

Solution :Aldehydes that have no `alpha`-hydrogen atom give Cannizzaro reaction, in which two molecule of aldehyde in presence of `50%` AQUEOUS `NaOH`, GIVES one MOLECULAR of alcohol and one molecular of sodium salt of acid.
`2CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-CHO+NaOH overset(Delta)rarr`
`CH_(3)-overset(" "CH_(3))overset(|)underset(" "CH_(3))underset(|)(C)-CH_(2)OH+CH_(3)-overset(" "CH_(3))overset(|)underset(" "CH_(3))underset(|)(C)-COoverset(-)(O)Na`
Discussion
35.

CH_(3)-overset(CH_(3))overset(|)(CH)-overset(CH_(3))overset(|)(CH)- CH(CH_(2)CH_(2)CH_(3))_(2)

Answer»


ANSWER : 5-(1',2'-dimethyl PROPYL)NONANE
Discussion
36.

CH_(3)-overset(CH_(3))overset(|)(CH)-NO_(2) underset(at 0^(@)C)overset(NaNO_(2)+H_(2)SO_(4))(rarr)(A). (A) is:

Answer»

a.`(CH_(3))_(2)-CH-OH`
b.`(CH_(3))_(2)CH-N=N-Br`
c.`(CH_(3))_(2)underset(NO_(2))underset(|)(C)-N=O`
d.`(CH_(3))_(2)underset(NO_(2))underset(|)(C )-NHOH`

Solution :The `2^(@) (RNO_(2))` group reacts with `HNO_(2) (2NaNO_(2)+H_(2)SO_(4) rarr 2HNO_(2) + 2Na_(2)SO_(4))` to GIVE pseudonitrole, which gives blue colour with `NaOH`.

So the answer is `(c )`.
Discussion
37.

CH_3-overset(CH_3)overset(|)C=CH-overset(CH_3)overset(|)underset(CH_3)underset(|)C-CH_3overset(NalO_4//KMnO_4)rarr products. Products are:

Answer»

`CH_3-OVERSET(O)overset(||)C-CH_3,(CH_3)_3C-COOH`
`CH_3-overset(O)overset(||)C-CH_3,(CH_3)_3C-CHO`
`CH_3-overset(O)overset(||)C-OH,(CH_3)_3C-COOH`
NONE of the above

Answer :A
Discussion
38.

CH_(3)-underset(Br)underset(|)overset(Br)overset(|)C-undersset(Br)underset(Br)underset(|)overset(Br)overset(|)C-CH_(3)i=overset(xNaNH_(2))to overset(yCH_(3)I)to CH_(3)-C-=C--=c-CH_(3) xand y mole consumed . value of x+y=

Answer»


ANSWER :8
Discussion
39.

CH_3 - O - CH_2 - CH_3underset(H^(+))overset(NaOI)to CHI_3 + A, A underset("1 mole")overset(Br_2//"Red P")to B overset("alc. KOH") to C overset(HCl)to D. Most acidic substance is

Answer»

A
B
C
D

Answer :B
Discussion
40.

CH_(3)-O-C(CH_(3))_(3) on reaction with CH_(3)COCl in presence of AlCl_(3) gives (A) and C_(6)H_(5)-O-C(CH_(3))_(3) on reaction with cold HI gives (B0. The compounds (A) and (B) are :

Answer»

`{:(A,B,),((CH_(3))_(3)C-CL,(CH_(3))_(3)C-I,):}`
`{:(A,B,),(CH_(3)Cl,(CH_(3))_(3)C-I,):}`
`{:(A,B,),(CH_(3)OH,C_(6)H_(5)-I,):}`
`{:(A,B,),(CH_(3)COOCH_(3),(CH_(3))_(3)C-OH,):}`

Answer :A
Discussion
41.

CH_3-O-C(CH_3)_3 on reaction with dil. H_2SO_4 under pressure gives (A) and (B). These are reacted with cold HI gives. The compound A and Bare respectively

Answer»

`(CH_3)_3C-I ` and `CH_3-I`
`(CH_3)_3C-OH` and `CH_3-I`
`(CH_3)_3C-I` and `CH_3-OH`
`(CH_3)_3C-OH` and `CH_3-OH`

ANSWER :A
Discussion
42.

Ch_(3)-O-C_(3)H_(7) and C_(2)H_(5)-O-C_(2)H_(5) exhibit which type of isomerism

Answer»

Metamerism
Position
Chain
Functional

Answer :A
Discussion
43.

CH_(3)-NO_(2) and CH_(3)-O-N=O are

Answer»

POSITION ISOMERS
metamers
linkage isomers
geometrical isomers

ANSWER :C
Discussion
44.

CH_3 NH_2(aq) turns........litmus........

Answer»

SOLUTION :RED, BLUE
Discussion
45.

CH_(3)-NH_(2)+CHCl_(3)+KOH to (X)+KC l+H_(2)O X is:-

Answer»

`CH_(3)-CN`
`CH_(3)-NH-CH_(3)`
`CH_(3)-NC`
`CH_(3)-CH_(2)-NC`

ANSWER :C
Discussion
46.

CH_(3)-NC is formed when CH_(3)-Cl reacts with

Answer»

KCN
AgCN
`CH_(3)CHO`
KOH and `CH_(3)NH_(2)`

Solution :The reaction is the CYANIDE ion is a reaonance hybride
`: OVERSET(-)C=N:harr: C= overset(-)N: harr overset(delta-)C-=overset(delta-)N`
reasonating structure RESONANCE hybride it is clear from thereasonatingstructure that the CN ion can attack the nucleophili through C waswell as through, N, hence called ambidentnucleophilie.
The KCN is ionic compound. THEREFORE both C and N atom are free to donate electron pair. Since C-C bond is relativity stronger stronger thatn C-N bond, hence attack forming alkyl cyanide.the AgCn is convalentcovalent compound. Therefore in this case only nitrogem
Discussion
47.

CH_(3)-Mg-Br is an oraganometallic compounds due to :

Answer»

`PI`-BOND between C and Mg
`Mg-Br` COVALENT bond
`SIGMA`-bond between C and Br
`sigma`-bond between C and Mg

Answer :D
Discussion
48.

CH_(3) H_(7), NO_(2) + NaOH to A overset( 50% H_(2)SO_(4))to B Hence compound 'B' willgive

Answer»

`CH_(3) - CH_(2) - CH_(2) - O - N = O`
`CH_(3) - underset(NO_(2))underset(|)(CH) - CH_(3)`
`CH_(3) - CH_(2) - CH_(2)- NO_(2)`
`CH_(3) - underset(ONO)underset(|)(CH)-CH_(3)`

Solution :CompoundB givespositiveTollen'stest , means aldehyde.
ALDEHYDES arepreparedby Nef- carbonyl sythesis FORM`1^(0)`nitroalkane .
Discussion
49.

CH_(3)COOH overset (Delta) underset (P_(2)O_(5)) toX. Identify X

Answer»

`CH_(3) COCH_(3)`
`CH_(3)` CHO
`(CH_(3)CO)_(2)` O
`CH_(4)`

ANSWER :C
Discussion
50.

CH_3 COOH overset(NH_3) A underset(-H_2O)overset(Delta)to B Compound B in the following reaction

Answer»

`CH_3 CH_2 NH_2 `
`CH_3 CN`
`CH_3 CH_2 NHCH_3`
`CH_3 CONH_2`

ANSWER :D
Discussion