Explore topic-wise InterviewSolutions in .

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.

93651.

, Product of the reaction is:

Answer»




ANSWER :B
Discussion
93652.

, Product of the reaction is :

Answer»




SOLUTION :(a)
Discussion
93653.

, product formed is

Answer»




ANSWER :A
Discussion
93654.

, Product (A) is:

Answer»




Solution :
In presence of `HNO_(3)` OXIDATION TAKE PLACE.
Discussion
93655.

…….. ppm of F^(-) ion in water can stop decay of teeth.

Answer»

`1.5`
1
`0.5`
2

Answer :B
Discussion
93656.

……. ppm concentration of flouride ion causes a stain of teeth.

Answer»

`1.5`
1
`0.5`
2

Answer :A
Discussion
93657.

………………. possesses biodegradable property.

Answer»

PTFE
PAN
SBR
PHBV

SOLUTION :PHBV
Discussion
93658.

, Possible products formed are ?

Answer»




ANSWER :B::C
Discussion
93659.

....... possess both copper and iron.

Answer»

COPPER PYRITES 
Chalcosites 
MALACHITE 
CUPRITE 

ANSWER :A
Discussion
93660.

.................... polymers are used in medical field such as surgical sutures, plasma substitute.

Answer»

SOLUTION :BIODEGRADABLE
Discussion
93661.

, P and Q are respectively:

Answer»




ANSWER :B
Discussion
93662.

, overset(O_(3)//Zn, H_(2)O)rarr (X)+(Y) Compound (X) and (Y) can be distinguish by :

Answer»

TOLLEN's reagent
Fehling solution
Haloform TEST
`2,4`-DNP Test

Solution :N//A
Discussion
93663.

, overset(NaOBr)rarrP_(1)underset(KOH)overset(CHCl_(3))rarrP_(2)underset(Ni)overset(H_(2))rarrP_(3) product P_(3) is

Answer»

`1^(@)"amine"`
`2^(@)"amine"`
`3^(@)"amine"`
`1^(@)"AMIDE"`

Solution :Stability order : `[Co(EN)_(3)]^(3+)gt[Co(o x)_(3)]^(3-)gt[Co(H_(2)O)_(6)]^(3+)gt[Co(SCN)_(4)]^(2-)`
Discussion
93664.

, overset(Hg(Oac)_(2).H_(2)O)underset(NaBH_(4))rarr(P) P in the following reaction :

Answer»

<P>


Solution : `overset(Hg(Oac)_(23)H_(2)O)UNDERSET(NaBH_(4))rarr (P)` ………………
Markonikov addition of water.
Discussion
93665.

, overset(H_(2)//Ni)rarrPoverset(Cl_(2)//hv)rarrQ (Total number of monochloro structure products).

Answer»

`2`
`3`
`4`
`5`

SOLUTION :
Discussion
93666.

, overset(HBr(1"equivalent"))(rarr) Major product is :

Answer»





SOLUTION :`{:(Mn_(2)O_(7)rarrMnO_(2)+O_(2)),(6e^(-)+Mn_(2)(+7)rarr2Mn(+4)),(O_(7)(-2)rarr2O_(2)(-2)+3O_(2)(0)+6e^(-)),(BAR(Mn_(2)O_(7)rarr2MnO_(2)+(3)/(2)O_(2))):}`
`nf=(6)/(1)=6`
`("Molar mass")/("Equivalent mass")=nf=6`
Discussion
93667.

, overset(H^(+))rarr The number of dehydration products are_____

Answer»


ANSWER :4
Discussion
93668.

........... or .......... used as promoter for iron in Haber's process

Answer»

SOLUTION :MO ( or) `Al_2O_3`
Discussion
93669.

_____ on reduction with Na/C_H_OH gives ethyl amine.

Answer»

SOLUTION :METHYL CYANIDE
Discussion
93670.

{:(""OH ""O),(""|""||), (CH_(3)-CH-CH-CH-C-O-C_(2)H_(5)),(""|""|),(""CN ""CHO):} According to IUPAC, principal functional group of the given compound is :-

Answer»

`-OH`
`-CN`
`-OVERSET(O)overset(||)-O-`
`-overset(O)overset (||) C-H`

ANSWER :C
Discussion
93671.

............ olefines give formaldehyde as one of the product.

Answer»

SOLUTION :TERMINAL
Discussion
93672.

-OH group present in alcohols is neutral white it is acidic in carboxylic acid because

Answer»

in carboxylic acid -OH group is ATTACHED to electron withdrawing CARBONYL group
in alcohols -OH group is attached to alkyl group which is elecron withdrawing
carboxylic group is an electronreleasing group
ALCOHOLIC group is an electron withdrawing group.

Answer :A
Discussion
93673.

_____ of molecules is the only condition for optical activity.

Answer»


ANSWER :CHIRALITY
Discussion
93674.

……………….of a reaction cannot be determined experimentally.

Answer»

order
rate
rate constant
molecularity

Answer :D
Discussion
93675.

____of a reaction cannot be determined experimentally.

Answer»

ORDER
RATE
rate CONSTANT
MOLECULARITY

ANSWER :D
Discussion
93676.

…………………..occurs in natural fats and in long chain fatty acids in form of triglycerides.

Answer»

SOLUTION :GLYCEROL
Discussion
93677.

{:(""O^(16)),("||"),(CH_(3)-C-H overset(D_(2)O^(18))underset(D^(o+))to CH_(3)-C-H),("||"),(""._(18)O):} Give the following reaction intermediate is :

Answer»

`{:("".^(18)OD),("|"),(CH_(3)-C-D),("|"),(""._(16)OD):}`
`{:("".^(18)OD),("|"),(CH_(3)-C-H),("|"),(""._(16)OD):}`
`{:("".^(16)OD),("|"),(CH_(3)-C-H),("|"),(""._(16)OD):}`
`{:("".^(18)OD),("|"),(CH_(3)-C-H),("|"),(""._(18)OD):}`

ANSWER :B
Discussion
93678.

-NO_(2) group is reduced to -NH_(2) by

Answer»

`Fe+conc. HCl`
`SnCl_(2)+HCl`
`Na+C_(2)H_(5)OH`
`ZnHg+HCl`

ANSWER :A
Discussion
93679.

-NO_(2) groupis convertedinto -NH_(2) groupby thereaction

Answer»

DEHYDRATION
alkaline hydrolysis
REDUCTION
decarboxylation

ANSWER :C
Discussion
93680.

-NH_(2) group in aniline is

Answer»

meta directing
ortho directing
para directing
`o-` and `p-` direction

Solution :`-NH_(2)` group in ANILINE is `o` and `p-` directing in nature as it increases ELECTRON DENSITY on o- and p- positions due to resonance.
Discussion
93681.

-NH_(2) group in anilineis

Answer»

only o-DIRECTING
only p-directing
only m-driecting
o ANDP directing

ANSWER :D
Discussion
93682.

[--NH-CH(R)-oversetoverset(O)(||)C--]_n is a -

Answer»

homopolymer
copolymer
condensation polymer
addition polymer

Answer :A::C
Discussion
93683.

[--NH-(CH_(2))_(6)-CONHCO-(CH_(2))_(4)-CO--]_(n)is a ……………….

Answer»

ADDITION POLYMER
THERMOSETTING polymer
HOMOPOLYMER
COPOLYMER

Solution :copolymer
Discussion
93684.

-[NH-(CH_(2))_(6)-NH-CO-(CH_(2))_(4)-CO]_(n)-

Answer»

HOMO POLYMER
Co-polymer & Nylon-6,6
Addition polymer
THERMOSETTING polymer

Answer :B
Discussion
93685.

_____ acts as the centre of all activities of the cell.

Answer»


ANSWER :ATP
Discussion
93686.

. Na and Mg are also called bridge elements. Why?

Answer»

SOLUTION :NA is called bridge ELEMENT since it LINKS group IA and group IB.
Discussion
93687.

-N_(2)^(+)X^(-)isreplacedby CN using

Answer»

HCN
CUCN
`CH_(3)CN`
both a andb

Answer :D
Discussion
93688.

........... metal is used in manufacture of artificial joints

Answer»

SOLUTION : TITANIUM
Discussion
93689.

(+) Mesomeric effect is observed with

Answer»

`- overset(..)(NH_(2))`
`- UNDERSET(..)overset(..)(C)L:`
`- underset(..)overset(..)(R)`
`- SO_(3) H`

Solution :(a, B, c): +M effect shown by all the STRUCTURES except (d).
Discussion
93690.

…………….. means uniformity in all directions.

Answer»

SOLUTION :ISOTROPY
Discussion
93691.

_______ may be defined as optically active polyhydroxy aldehydes or ketones or the compounds which produce such units on hydrolysis.

Answer»

SOLUTION :CARBOHYDRATES
Discussion
93692.

. Maximum number of wurtz reaction products formed are

Answer»

2
3
4
8

Answer :B
Discussion
93693.

{:(,, "List-I","List-II"),(,(A),Ti^(+3),1" Charge transfer phenomenon"),(,(B),MnO_(4)^(-),2" Impurities"),(,(C),F_(2),3" s-stransition"),(,(D),"Gems",4" d-d transition"),(, ,,5" Excitation of electron"):} The correct match which is responsible for colour

Answer»

A-4, B-1, C-2, D-5
A-4, B-1, C-5, D-2
A-4, B-5, C-1, D-2
A-5, B-2, C-3, D-4

Answer :B
Discussion
93694.

{:(,"List - I",," List - II"),(,"(Nearest neighbours)",,"(Co-ordination number)"),((P),"Second nearest neighbour of "Cs^(+) "in CsCl",(1),8),((Q),"Third nearest neighbour of "Na^(+)" in NaCl",(2),12),((R ),"Second nearest neighbour of "Ca^(2+)" in "CaF_(2),(3),4),((S),"First nearest neighbour of " Zn^(2+)" in ZnS(Zinc blende)",(4),6):}

Answer»

P-4, Q-1, R-3, S-2
P-2, Q-1, R-4, S-3
P-4, Q-1, R-2, S-3
P-3, Q-1, R-4, S-2

ANSWER :C
Discussion
93695.

{:("List-I ","List-II "),("(mineral)","(type of mineral)"),("1) Beryl ","a) Sulphate "),("2) Monosite sand ","b) Silicate "),("3) Pentlandite ","c) Sulphide "),("4) Anglesite ","d) Phosphate "):}

Answer»

`{:(1,2,3,4),(B,d,C,a):}`
`{:(1,2,3,4),(a,b,c,d):}`
`{:(1,2,3,4),(b,c,d,a):}`
`{:(1,2,3,4),(a,d,c,b):}`

ANSWER :A
Discussion
93696.

Match the following {:("List-I","List-II"),((1)"Liquation",(a)"Volatile metals with non volatile impurit"),((2)"Poling",(b) "Metal with its metal oxies as impurity"),((3)"Cupellation",(c)"Metal with easily oxidisable impurities"),((4)"Distillation",(d)"Metal and impurities differ in M.P"):}

Answer»

`{:(1,2,3,4),(a,B,C,d):}`
`{:(1,2,3,4),(d,c,b,a):}`
`{:(1,2,3,4),(d,b,c,a):}`
`{:(1,2,3,4),(a,b,d,c):}`

ANSWER :C
Discussion
93697.

Match the following : {:("List-I","List-II"),((1)"vanArkel method",(1)"Manufacture of caustic soda"),((B)"Solvay process",(2)"Purification of Titanium"),((C)"Cupellation",(3)"Manufacture of" Na_(2)CO_(3)),((D)"Poling",(4)"Purification of copper"),(,(5)"Refining of silver"):}

Answer»

`{:(A,B,C,D),(2,1,3,4):}`
`{:(A,B,C,D),(4,3,2,5):}`
`{:(A,B,C,D),(2,3,5,4):}`
`{:(A,B,C,D),(5,1,3,4):}`

ANSWER :C
Discussion
93698.

{:("List-I ","List-II "),("1) Argentite ","a) KCl"),("2) Horn silver ","b) AgCl"),("3) Ruby silver ","c) "Ag_(2)S),("4) Sylvine ","d) "2Ag_(2)S.Sb_(2)S_(3)):}

Answer»

`{:(1,2,3,4),(C,a,d,B):}`
`{:(1,2,3,4),(d,b,c,a):}`
`{:(1,2,3,4),(c,b,d,a):}`
`{:(1,2,3,4),(d,c,b,a):}`

ANSWER :C
Discussion
93699.

{:("LIST-1","LIST - 2"),("A) Faraday's first law","1) " exx96500),("B) Chemical equivalent","2)" (m_(1))/(E_(1))=(m_(2))/(E_(2))),("C) Faraday's second law","3) S.H.E."),("D) Pt,"H_(2)(atm)//H^(+)(1M), "4) "m=eQ),(,"5) Salt bridge"):} The correct match is

Answer»

`{:("A","B","C","D"),(4,1,3,2):}`
`{:("A","B","C","D"),(4,5,2,3):}`
`{:("A","B","C","D"),(1,1,2,3):}`
`{:("A","B","C","D"),(4,1,2,3):}`
Discussion
93700.

{:("LIST - 1 ", "LIST - 2 "),( "A) Very dilute " H_(2)SO_(4)"by inert electrodes","1) "Hg//Hg_(2)Cl_(2(S))" , "KC//"(salt)"),("B) Potential is zerovolts","2) " H_(2)S_(2)O_(8) " at anode"),("C) " 50% H_(2)SO_(4) " byinert electrodes","3) Daniel cell"),("D) "Zn//Zn_((aq))^(+2)"//" Cu_((aq))^(+2)//Cu,"4) " O_(2) " at anode"),(,"5) Pt, "H_(2)(1atm)//H^(+)(1M)):} The correct match is

Answer»

`{:("A","B","C","D"),(4,5,2,3):}`
`{:("A","B","C","D"),(2,1,4,3):}`
`{:("A","B","C","D"),(2,5,4,3):}`
`{:("A","B","C","D"),(5,3,1,2):}`
Discussion