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_(2)=CH_(2)+B_(2)H_(6) underset(NaOH)overset(H_(2)SO_(4))to Product Product in above reaction is

Answer»

`CH_(3)CH_(2)CHO`
`CH_(3)CH_(2)OH`
`CH_(3)CHO`
NONE of above

Answer :B
Discussion
2.

CH_(2) = CH_(2) + B_(2) H_(6) underset(H_(2)SO_(4))overset(NaOH) toPr oduct. Product is :

Answer»

`CH_3CH_2CHO`
`CH_3CH_2OH`
`CH_3CHO`
`CH_3OH`

ANSWER :B
Discussion
3.

CH_2=CH-CH=CH_2overset(H_2//Pt)underset("1 equiv.")rarrAoverset(O_3//H_2O)rarrB A and B are

Answer»

`CH_3-CH_2-CH=CH_2, (CH_3CH_2COOH+CO_2)`
`CH_3-CH=CH-CH_3, CH_3COOH(2MOL)`
`CH_3-CH=CH-CH_3, CH_3CHO(2mol)`
`CH_3-CH_2-CH=CH_2, (CH_3CH_2CHO+HCHO)`

ANSWER :B
Discussion
4.

CH_(2)=CH-(CH_(2))_(5)COOH underset(HBr)overset("Peroxide")toZ Where Z is

Answer»

`CH_(3)-Cunderset(Br)underset(|)(H)-(CH_(2))_(5)COOH`
`BrCH_(2)-(CH_(2))_(6)COOH`
`CH_(2)=CH-(CH_(2))_(5)-CH_(2)OH`
`C_(6)H_(5)COOH`

Solution :`CH_(2)=CH-(CH_(2))_(5)COOH underset(HBr)OVERSET("PEROXIDE")to underset(Br)underset(|)(CH_(2))-(CH_(2))_(6)-COOH`
Discussion
5.

CH_2=CH-CH_2OHundersetIoverset(PhH//HF)toAunderset(II)overset(H_2//Pt)toBunderset(III)overset(NBS)toCunderset(IV)overset(H_2O,"acetone")toDundersetVoverset(MnO_2)toE[PS Madam] Which of the following statement is/are correct ?

Answer»

B' gives total 5 monochloro products on photochemical chlorination
E' gives positive test with NaOH
D' gives instant turbilty with HCl + `ZnCl_2`
`1^(ST)` STEP is an electrophilic SUBSTITUTION reaction

SOLUTION :
Discussion
6.

CH_(2)-X is presentationof

Answer»

`1^(@)R-X`
`2^(@)R-X`
`3^(@)R-X`
`4^(@)R-X`

ANSWER :A
Discussion
7.

CH_(2)-underset(O)underset(||)C-CH_(3)overset(1.(CH_(3))_(2)LiCu(1mol))underset(2.H_(2)O)rarr ? The product is:

Answer»

`CH_(3)-CH_(2)-underset(OH)underset(|)CH-CH_(2)-underset(O)underset(||)-CH_(3)`
`CH_(3)-CH_(2)-underset(OH)underset(|)CH-CH_(2)-OVERSET(CH_(3))overset(|)underset(OH)underset(|)C-CH_(3)`

All

Solution :NA
Discussion
8.

CH_2= undersetoverset(|)(Me)(C ) -CH_2CH_2CH_3 overset(IBr)(to)The structure of the product is

Answer»




SOLUTION :
Discussion
9.

CH_(2)-OH group is obtained from - COOH by using

Answer»

`LiAlh_(4)`
`SnCl_(2)+HCL`
`H_(2)+Ni`
ZnHg+conc. HCl`

Answer :A
Discussion
10.

{:(CH_(2)-CONH_(2)),("|"),(CH_(2)-CONH_(2)):} overset(P_(2)O_(5))underset(Delta)to(P)overset(H_(2)O^(o+))underset(Delta)to(Q) The product (Q) is

Answer»

`CH_(3)-CH_(2)-COOH`
`{:(CH_(2)-COOH),("|"),(CH_(2)-COOH):} `

`CH_(3)-COOH`

SOLUTION :
Discussion
11.

CH_2 = C=O to underset("(dilketene)")X Correct statement is

Answer»

In `CH_2 = C=O` , the TWO `PI` BONDS AR PERPENDICULAR to each other
Y is `H_2 C = C =CH_2`
Y is optically inactive
All the above

Solution :Conceptual
Discussion
12.

CH_2 = CHOH is called as………………….. .

Answer»

SOLUTION :VINYL ALCOHOL (or) ETHENOL
Discussion
13.

CH_(2) = CH_(2) overset(O_(3))(to)X overset(H_(2)O // Zn)(to) Y overset([O])(to) Z, Z is

Answer»

`HCOOH`
`CH_3 CH_2 OH`
`CH_3OH`
`CH_3 CH_2 COOH`

SOLUTION :
Discussion
14.

CH_2 = CH_2is

Answer»

MONOMER
POLYMER
ISOMER
epimer

Solution :monomer
Discussion
15.

CH_2 = CH_2 + HCl overset(x)(rarr) CH_3 - CH_2Cl, What is 'X'?

Answer»

`Al_2 O_3`
ANHY `AlCl_3`
`NACL`
`MgCl_2`

ANSWER :B
Discussion
16.

What are X and Y in the reaction? C_(2)H_(4)+H_(2)SO_(4)overset(80^(@)C)rarrXunderset(Delta)overset(H_(2)O)rarrY

Answer»

`C_(2)H_(5)OH , C_(2)H_(5)HSO_(4)`
`(C_(2)H_(5))_(2)SO_(4), C_(2)H_(5)OH`
`C_(2)H_(5)HSO_(4), C_(2)H_(5)OH`
`C_(2)H_(5)OH , (C_(2)H_(5))_(2)SO_(4)`

Answer :C
Discussion
17.

CH_3CH = CH_2 overset(HCl)(to) X underset("heat") overset(Dr Ag_2O)(to) Ythe product Y in the above sequence is

Answer»

`C_2H_5OH , C_2H_5HSO_4`
`(C_2H_5)_2SO_4, C_2H_5OH`
`C_2H_5HSO_ , C_2H_5OH`
`C_2H_5OH , (C_2H_5)_2SO_4 `

ANSWER :C
Discussion
18.

CH_(2) = CH - CH_(3) overset(Cl_2,500^(@)C)(rarr) A. The product A is

Answer»



`H_(2)C=underset(CL)underset(|)(C)-underset(Cl)underset(|)(CH_(2))`
`HC=underset(Cl)underset(|)(CH)-underset(Cl)underset(|)(CH_(2))`

Answer :B
Discussion
19.

{:(CH_(2)-CH- CH_(2)), (|""|""|),(COOH COOH COOH):} compound is :-

Answer»

Propane-1, 2, 3-trioic acid
1, 2, 3-Tri carboxy PROPANOIC acid
Propane-1, 2,3-tricarboxylic acid
hexane trioic acid

Answer :C
Discussion
20.

CH-=Chunderset(H_2SO_4)overset(H_2O // Hg^(2+))to X overset(LiAIH_4)to Y overset(P_4//Br_2)to Z Here Z is

Answer»

ETHYLENE bromide
Ethanol
Ethyl bromide
Ethylidene bromide

Solution :`CH-=CHunderset(H_2SO_4)overset(H_2O //HG^(2+))tounderset"(X)"(H_3C-oversetoversetO(||)C-H)overset(LiAlH_4)to underset"(Y)"(CH_3-CH_2-OH)overset(P_4//Br_2)to underset"(Z)"(C_2H_5Br)`
Discussion
21.

CH-=CHoverset(O_3//NaOH)rarrXoverset(Zn//CH_3COOH)rarrY

Answer»

`CH_2OH - CH_2OH`
`CH_3CH_2OH`
`CH_3COOH`
`CH_3OH`

ANSWER :A
Discussion
22.

CH-=CHoverset(NH_4Cl)underset(Cu_2Cl_2)rarr product product is:

Answer»

`Cu-C-=C-Cu`
`CH_2=CH-C-=CH`
`Ch-=C-Cu`
`Cu-C-=C-NH_4`

ANSWER :B
Discussion
23.

CH-=CHoverset(Ni(CN)_2)rarrX . Identify X in the given reaction

Answer»

Benzene
Ethane
Cyclooctatetraene
Cyclohexane

Solution :
Discussion
24.

CH-=CH underset(H_2SO_4)overset(HgSO_4)to underset(H_2O)overset(CH_3MgBr)to overset(P//Br_2)to

Answer»

`CH_3CH(BR)CH_3`
`CH_3CH_2CH_2Br`
`CH_2=CH-Br`
`BrCH=CH-CH_3`

SOLUTION :`CH-=CHunderset(H_2SO_4)OVERSET(HgSO_4)to CH_3CHOoverset(CH_3MgBr)to CH_3-undersetunderset(H)(|)overset"OMgBr"overset|C-CH_3overset(H_2O)to CH_3-undersetunderset(CH_3)(|)oversetoverset(OH)(|)C-Hoverset(P//Br_2)to CH_3-undersetunderset(CH_3)(|)oversetoverset(Br)(|)C-H`
Discussion
25.

CH -= CH underset(1% HgSO_(4))overset(50% H_(2)SO_(4))rarr A underset("dil". H_(2)SO_(4))overset(K_(2)Cr_(2)O_(7))rarr B overset(Ca(OH)_(2))rarr C underset("distillation")overset("dry")rarr D. Write the final prodcut 'D' in the above sequence of reactions?

Answer»

SOLUTION :`CH_(3)COCH_(3)`
Discussion
26.

In the reaction CH-=CHoverset(O_(3)//NaOH)(to)Xoverset(Zn//CH_(3)COOH)(to)Y Identify 'Y'

Answer»

`CH_3OH`
`CH_3CH_2OH`
`CH_3COOH`
`CH_3OH - CH_2OH`

ANSWER :D
Discussion
27.

Cellulose is a

Answer»

NATURAL POLYMER
semi-synthetic polymer
synthetic polymer
NONE of these

Answer :A
Discussion
28.

CH-=CH overset(CH_(3)MgBr) toAoverset((i)CO_(2)) underset((ii) H_(3)O^(+))to B overset(HgSO_(4)//H_(2)SO_(4))to overset(O)overset(||)(HO-C-CH_(2))-overset(O)overset(||)C-OH overset((i)[Ag(NH_(3))_(2)]^(+),OH^(-)) underset((ii)H^(+)) toC In the given, reaction, product C is

Answer»




SOLUTION :
Discussion
29.

Cellulose is a condensation polymer is:

Answer»

MALTOSE
`BETA`-GLUCOSE
`ALPHA`-Glucose
`beta`-Fructose

Answer :B
Discussion
30.

CH-=CH+HBr to X, product X is

Answer»

ETHYLENE bromide
VINYL bromide
Bromo ethane
Ethyledine bromide

Solution :`UNDERSET"ACETYLENE"(CH-=CH+HBr)to underset"Vinyl bromide"(CH_2=CHBr)`
Discussion
31.

CH-=CH+H_(2)O overset(H_(2)SO_(4))underset(HgSO_(4))rarr A overset(H_(2)//Ni)underset(300^(@)C)rarrB. What are A and B

Answer»

`CH_(3)CHO` and `CH_(3)CH_(2)OH`
`HCHO` and `CH_(3)CH_(2)OH`
`CH_(3)CH_(2)OH` and `CH_(3)CH_(2)CHO`
`HCHO` and `CH_(3)CHO`

Solution :`CH -= CH +H_(2)O underset(HgSO_(4))OVERSET(H_(2)SO_(4))rarr underset((A))(CH_(3))CHO overset(H_(2)//NT)underset(300^(@)C)rarr underset((B))(CH_(3)CH_(2)OH)`
Discussion
32.

C_(("graphite"))+O_(2)(g)rarrCO_(2)(g), DeltaH=-94.05 kcal mol^(-1)C_(("diamond"))+O_(2)(g)rarrCO_(2)(g), DeltaH=-94.50 kcal mol^(-1)therefore

Answer»

`C_(("graphite"))rarrC_(("diamond")), DeltaH_(298 K)^(@)=-450 cal MOL^(-1)`
`C_(("diamond"))rarrC_(("graphite")), DeltaH_(298 K)^(@)=+450 cal mol^(-1)`
Graphite is the stabler allotrope
Diamond is harder than graphite

Solution :Heat energy is also INVOLVED when ONE allotropic form of an element in to another. Graphite is the stabler allotrope because the heat of transformation of
`C_(("diamond"))rarrC_(("graphite"))`.
(i) `C_(("dia"))+O_(2)(G)=CO_(2(g))DeltaH=-94.5 kcal`
(ii)`C_(("graphite"))+O_(2(g))=CO_(2(g))DeltaH=-94.0 k cal`
`DeltaH_("transformation")=-94.5-(-94.0)`
`=-0.5 kcal`.
Discussion
33.

Cellulose is a:

Answer»

Carbohydrate
Protein
Nucleotide
Polypeptide.

Answer :A
Discussion
34.

CF_(x)Cl_(y) [where x+y=4]. These compounds are not used because

Answer»

These are FLUORO carbons
These are DIFFICULT to synthesise
They depelete OZONE layer
None of these

Answer :C
Discussion
35.

Cellulose is a :

Answer»

NATURAL POLYMER
Semi-SYNTHETIC polymer
Synthetic polymer
NONE of these

Answer :A
Discussion
36.

CFSE for the complex [Ir(NH_(3))_(6)]^(3+) is: [(-0.4xxx_(t_(2g)))Delta_(0)+(0.6xxy_(eg))Delta_(0)+ZP] Find the addition of x+y

Answer»


SOLUTION :`x=6`
`y=0`
`:.x+y=6`
Discussion
37.

"CFCl"_(3) and HF on reaction in presence of " SbF"_(5) leads to the formation of:

Answer»

FREON -112
Freon - 114
freon -11
Freon -12

ANSWER :D
Discussion
38.

Cf^(3+) is isoelectronic with

Answer»

`MD^(4+)`
`Am^(4+)`
`PU^(7+)`
`Es ^(4+)`

Answer :D
Discussion
39.

Cellulose has very high degree of hydrophilicity because of

Answer»

Its AMORPHOUS nature
Crystalline nature
Presence of EXCESSIVE voids in solid state
Presence of many HYDROXY GROUPS on the POLYMER backbone

Answer :D
Discussion
40.

CF_3-CHCl_2 overset(C_2H_5O^(-))(rarr)CF_3 - Coverset(o.)(C )l_2 rarr. The carbanion is stabilised by a) -I effect of CF_3 b) +I effect of CF_3 c) d-orbital resonance of Cl atm.

Answer»

a only
both B and C
both a and c
c only

ANSWER :C
Discussion
41.

Cellulose contain

Answer»

C-1`to`C-4 `ALPHA`-D-glucopranose GLYCOSIDIC bond
C-1`to`C-5`alpha`-D-glucopranose glycosidic bond
C-1`to`C-4`BETA`-D-glucopranose glycosidic bond
C-1`to`C-4`beta`-D-glucopranose glycosidic bond

Answer :C
Discussion
42.

Cetyltrimethyl ammonium bromide is a popular

Answer»

ANIONIC detergent
cationic detergent
Non-ionic detergents
sweetener

Answer :B
Discussion
43.

Cellulose acetate and cellulose nitrate are examples of ________polymers.

Answer»

SOLUTION :semi-synthetic
Discussion
44.

Cetane is a compound which has very good ignition property. Chemically it is

Answer»

`CH_3(CH_2)_14CH_3`
`(CH_3)_3C(CH_2)_11CH_3`
`C_17H_34`
NONE of these

Solution :CETANE is chemically hexadecane i.e., `CH_3(CH_2)_14 CH_3`
Discussion
45.

Celluloid is

Answer»

A thermoplastic material OBTAINED from caprolactam and UREA
A thermoplastic material obtained from cellulose nitrate and camphor
A thermosettingmaterial obtained from urea and formaldehyde
A thermosetting material obtained from glycerol and PHTHALIC anhydride

Answer :B
Discussion
46.

Cetane number of diesel fuel increases with the addition of:

Answer»

DECANE
Hexadecane
Pantane
Methyl naphthalene

Answer :A
Discussion
47.

Cetrizine, levocetrizine, trefenadine, ampicillin, desloratatide.

Answer»

SOLUTION :AMPICILLIN. It is antimicrobial WHEREAS OTHERS are antihistamines.
Discussion
48.

cetane is :

Answer»

HEXADECANE
ISO - OCTANE
DODECANE
n-Hexane

ANSWER :A
Discussion
49.

Cesium chloride is formed according to the following equation Cs (s) + 0.5 Cl_(2) (g) to CsCl (s) The enthalpy of sublimation of Cs, enthalpy of dissociation of chlorine, ionization energy of Cs & electron gain enthalpy of chlorine are 81.2,243.0, 375.7 and –348.3 kJ mol^(-1). The energy change involved in the formation of CsCl is –388.6 kJ mol^(-1) . Calculate the lattice energy of CsCl.

Answer»

SOLUTION :`-618.7 KJ MOL^(-1)`
Discussion
50.

Cellophane is made from :

Answer»

Cellulose
Phenol
Gum
Petroleum

Answer :A
Discussion