Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`

Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`
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Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`
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Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`

Description : Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`

Last Answer : Arrange the following compounds in decreasing order of nucleophilic addition with semicarbazide `NH_(2)NHCONH_(2)` i.e., `ddot(N)H_(2)-ddot(Z)`

Arrange the following carboxyl compounds in increasing order of their reactivity in nucleophilic addition reactions. Explain with proper reasoning : Benzaldehyde. p-tolualdeyde, p-nitrobenzaldehyde, Acetophenone.

Description : Arrange the following carboxyl compounds in increasing order of their reactivity in nucleophilic addition reactions. Explain with proper reasoning : Benzaldehyde. p-tolualdeyde, p-nitrobenzaldehyde, Acetophenone.

Last Answer : Ans. Acetophenone is a ketone while all others are aldehydes, therefore it is least reactive. In p-tolualdehyde, there is methyl group (CH3 ) at para position w.r.t. to the ... overall order of increasing reactivity : acetophenone < p-tolualdehyde < benzaldehyde < p-nitrobenzaldehyde. 

Consider the given compounds : (a) `CH_(3)-CH_(2)-NH_(2)` (b) `CH_(3)-CH=NH` (c ) `CH_(3)-C=N` (d) `C_(2)H_(5)-NH-C_(2)H_(5)` Arrange basicity of thes

Description : Consider the given compounds : (a) `CH_(3)-CH_(2)-NH_(2)` (b) `CH_(3)-CH=NH` (c ) `CH_(3)-C=N` (d) `C_(2)H_(5)-NH-C_(2)H_(5)` Arrange basicity of thes

Last Answer : Consider the given compounds : (a) `CH_(3)-CH_(2)-NH_(2)` (b) `CH_(3)-CH=NH` (c ) `CH_(3)-C=N` (d) `C_(2 ... `a gt d gt b gt c` D. `d gt a gt c gt b`

Arragne basicity of the following compounds in decreasing order: `CH_(3)CH_(2)NH_(2)(I)," "H_(2)C=CH-NH_(2)(II),` `HC-=C-NH_(2)(III)," "C_(6)H_(5)NH_(

Description : Arragne basicity of the following compounds in decreasing order: `CH_(3)CH_(2)NH_(2)(I)," "H_(2)C=CH-NH_(2)(II),` `HC-=C-NH_(2)(III)," "C_(6)H_(5)NH_(

Last Answer : Arragne basicity of the following compounds in decreasing order: `CH_(3)CH_(2)NH_(2)(I), ... `IVgtIIIgtIIgtI` C. `IIIgtIIgtIgtIV` D. `IgtIIIgtIIgtIV`

Arrange the following compounds in order of increasing molar conductivity . `(i) K[Co(NH_(3))_(2)(NO_(2))_(4)]" " (ii) [Cr(NH_(3))_(3)(NO_(2))_(3)]` `

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Arrange the carbanions, `(CH_(3))_(3)bar(C),bar(C)Cl_(3),(CH_(3))_(2)bar(C)H,C_(6)H_(5)bar(C)H_(2)`, in order of their decreasing stability

Description : Arrange the carbanions, `(CH_(3))_(3)bar(C),bar(C)Cl_(3),(CH_(3))_(2)bar(C)H,C_(6)H_(5)bar(C)H_(2)`, in order of their decreasing stability

Last Answer : Arrange the carbanions, `(CH_(3))_(3)bar(C),bar(C)Cl_(3),(CH_(3))_(2)bar(C)H,C_(6)H_(5)bar(C)H_(2 ... (2)bar(C)HgtC_(6)H_(5)bar(C)H_(2)gtbar(C)Cl_(3)`

Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO " " (Y) CH_(3)CHO " " (Z)CH_(3)COCH_(3) " " (W) CF_(3)CHO`

Description : Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO " " (Y) CH_(3)CHO " " (Z)CH_(3)COCH_(3) " " (W) CF_(3)CHO`

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Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO " " (Y) CH_(3)CHO " " (Z)CH_(3)COCH_(3) " " (W) CF_(3)CHO`

Description : Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO " " (Y) CH_(3)CHO " " (Z)CH_(3)COCH_(3) " " (W) CF_(3)CHO`

Last Answer : Arrange the following compounds in decreasing orders of rate of hydration. `(X) C Cl_(3)CHO ... . WgtZgtXgtY B. WgtXgtYgtZ C. WgtYgtZgtX D. WgtZgtYgtX

Arrange the following compounds in decreasing order of reactivity for EAR :- (I) `CH_(2)=CH_(2)` (II) `CH_(3)-CH=CH_(2)` (III) `Ph_(2)C=CH-CH_(3)` (IV

Description : Arrange the following compounds in decreasing order of reactivity for EAR :- (I) `CH_(2)=CH_(2)` (II) `CH_(3)-CH=CH_(2)` (III) `Ph_(2)C=CH-CH_(3)` (IV

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Arrange the compounds in order of decreasing acidic strength : (I) `ClCH_(2)-CH_(2)-OH` (II) `Cl_(2)CH-CH_(2)-OH` (III) `Cl-CH_(2)-CH_(2)-CH_(2)-OH` (

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Last Answer : Arrange the compounds in order of decreasing acidic strength : (I) `ClCH_(2)-CH_(2)-OH` (II) `Cl_(2)CH-CH_(2 ... IV gt III` D. `II gt I gt III gt IV`

Arrange the following nucleophiles in the order of their nucleophilic strength.

Description : Arrange the following nucleophiles in the order of their nucleophilic strength.

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Arrange the following carbanions in decreasing orde of stability: `HC-=bar(C)(I)," "H_(3)C-C-=bar(C)(II),` `H_(2)C=bar(C)H(III)," "H_(3)C-bar(C)H_(2)(

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Last Answer : Arrange the following carbanions in decreasing orde of stability: `HC-=bar(C)(I)," "H_(3 ... `IIgtIgtIIIgtIV` C. `IVgtIIIgtIIgtI` D. `IgtIIgtIIIgtIV`

Arrange the following in order of decreasing tendency towards `S_(N^(2))` reaction : `{:(underset("(I)")(CH_(3)CH_(2)CH_(2)CH_(2)Cl)", "underset("(II)

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Arrange the following in the decreasing order of Vander Waal’s radii: Cl, H, O, N.

Description : Arrange the following in the decreasing order of Vander Waal’s radii: Cl, H, O, N.

Last Answer : Ans.The overall decreasing order is: Cl> N > O >H.

Arrange the following resonating structures in order of increasing stability `underset((I))(CH_(2)=overset(+)(N)=overset(-)(N))" "underset((II))(H_(2)

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Arrange the following in increasing order as directed. `(a) (i) [CoCl_(3)(NH_(3))_(3)]," "(ii)[CoCl(NH_(3))_(5)]Cl_(2)," "(iii)[Co(NH_(3))_(6)]Cl_(3),

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The decreasing order of strength of the bases, `OH^(-), NH_(2)^(-), H-C-=C^(-)` and `CH_(3)-CH_(2)^(-)`:

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`Ph-overset(O)overset(||)(C)-NH_(2)+Ph-CH_(2)-overset(O)overset(||)(C)-overset(15)(N)H_(2) overset(overset(Theta)(OH)+Br_(2))rarr A+B` Products A and

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Last Answer : `Ph-overset(O)overset(||)(C)-NH_(2)+Ph-CH_(2)-overset(O)overset(||)(C)-overset(15)(N)H_(2) overset(overset ... (2)-NH_(2)` D. `Ph-overset(15)(N)H_(2)`

You are given samples of three metals. Sodium, magnesium and copper. Suggest any two activities to arrange them in order of decreasing activity. -Chemistry

Description : You are given samples of three metals. Sodium, magnesium and copper. Suggest any two activities to arrange them in order of decreasing activity. -Chemistry

Last Answer : Activity 1: Sodium reacts with cold water vigorously to form sodium hydroxide and hydrogen gas Magnesium does not react with cold water but with hot water to form magnesium ! hydroxide and hydrogen gas. Hence sodium is more reactive than magnesium.

Arrange the following in decreasing order of rate of nitration :-

Description : Arrange the following in decreasing order of rate of nitration :-

Last Answer : Arrange the following in decreasing order of rate of nitration :- A. `b gt a = c gt d` B. `d gt a = c gt b` ... gt a gt c gt d` D. `a gt c gt d gt b`

Arrange the following in decreasing order of acidic strength:

Description : Arrange the following in decreasing order of acidic strength:

Last Answer : Arrange the following in decreasing order of acidic strength: A. `I gt II gt III gt IV` B. `IV gt III gt II ... III gt I` D. `IV gt II gt III gt I`

Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)-OH` (III) `CH_(3)-underset(CH_(3))underse

Description : Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)-OH` (III) `CH_(3)-underset(CH_(3))underse

Last Answer : Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)- ... II gt IV` D. `II gt IV gt III gt I`

Arrange the following in decreasing order of their stability :- `(I) CH_(3)-overset(oplus)(CH_(2)) " "(II) CH_(3)-underset(CH_(3))underset(|)overset(o

Description : Arrange the following in decreasing order of their stability :- `(I) CH_(3)-overset(oplus)(CH_(2)) " "(II) CH_(3)-underset(CH_(3))underset(|)overset(o

Last Answer : Arrange the following in decreasing order of their stability :- `(I) CH_(3)-overset(oplus)(CH_(2)) " "(II) CH_( ... II gt I` D. `III gt II gt I gt IV`

Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse effect:

Description : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse effect:

Last Answer : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse ... (2)` D. `CO_(2)gtCH_(4)gtCFCgtN_(2)O`

Arrange the following free radicals in order of decreasing stability: Methyl(I), Vinly(II), Allyl(III), Benzyl(IV)

Description : Arrange the following free radicals in order of decreasing stability: Methyl(I), Vinly(II), Allyl(III), Benzyl(IV)

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Consider the following places: 2. Shimla 3. Gangtok 4. Mumbai 5. Delhi Arrange these places in decreasing order of their atmospheric pressure on their ground surface using the codes given below: [CDS 2002] (a) 3, 4, 1, 2 (b) 4, 3, 2, 1 (c) 3, 1, 4, 2 (d) 2, 4, 1, 3

Description : Consider the following places: 2. Shimla 3. Gangtok 4. Mumbai 5. Delhi Arrange these places in decreasing order of their atmospheric pressure on their ground surface using the codes given below: [CDS 2002] (a) 3, 4, 1, 2 (b) 4, 3, 2, 1 (c) 3, 1, 4, 2 (d) 2, 4, 1, 3

Last Answer : Ans: (b)

Arrange the following cities in decreasing order of the rainfall they receive from the south-west monsoons in summer months: 1. Allahabad 2. Kolkata 3. Delhi 4. Patna (a) 2, 4, 1, 3 (b) 3, 1, 4, 2 (c) 1, 4, 3, 2 (d) 2, 4, 3, 1

Description : Arrange the following cities in decreasing order of the rainfall they receive from the south-west monsoons in summer months: 1. Allahabad 2. Kolkata 3. Delhi 4. Patna (a) 2, 4, 1, 3 (b) 3, 1, 4, 2 (c) 1, 4, 3, 2 (d) 2, 4, 3, 1

Last Answer : Ans: (d)

Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill(B) Ball mill, Jaw crusher, Fluid energy mill(C) Fluid energy mill, Jaw crusher, Ball mill(D) Fluid energy mill, Ball mill, Jaw crusher

Description : Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. (A) Jaw crusher, Ball mill, Fluid energy mill (B) Ball mill, Jaw crusher, Fluid ... C) Fluid energy mill, Jaw crusher, Ball mill (D) Fluid energy mill, Ball mill, Jaw crusher

Last Answer : (A) Jaw crusher, Ball mill, Fluid energy mill

Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF

Description : Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF

Last Answer : Ans. HI> HBr> HCl >HF

Arrange the first group elements in the decreasing order of Hydration Enthalpy

Description : Arrange the first group elements in the decreasing order of Hydration Enthalpy 

Last Answer : The hydration enthalpies of alkali metal ions decrease with increase in ionic sizes. Li+ > Na+ > K+ > Rb+ > Cs+

`{:(,"Compounds",,"O.N."),((A),KMn^(**)O_(4),(1),+4),((B),Ni^(**)(CO)_(4),(2),+7),((C),[Pt^(**)(NH_(3))Cl_(2)]Cl_(2),(3),0),((D),Na_(2)O_(2)^(**),(4),

Description : `{:(,"Compounds",,"O.N."),((A),KMn^(**)O_(4),(1),+4),((B),Ni^(**)(CO)_(4),(2),+7),((C),[Pt^(**)(NH_(3))Cl_(2)]Cl_(2),(3),0),((D),Na_(2)O_(2)^(**),(4),

Last Answer : `{:(,"Compounds",,"O.N."),((A),KMn^(**)O_(4),(1),+4),((B),Ni^(**)(CO)_(4),(2),+7),((C),[Pt^(**)(NH_(3) ... ),(2,3,1,4):}` D. `{:(A,B,C,D),(4,1,2,3):}`

Which of the following is an example of nucleophilic addition of acetone?

Description : Which of the following is an example of nucleophilic addition of acetone?

Last Answer : Which of the following is an example of nucleophilic addition of acetone? A. Ketal formation B ... gas C. Cyanohydrin formation D. Bisulphite additon

Which gives nucleophilic addition reaction?

Description : Which gives nucleophilic addition reaction?

Last Answer : Which gives nucleophilic addition reaction? A. Methanal B. Ethanal C. Propanone D. Propene

Nucleophilic addition reaction will be most favoured in

Description : Nucleophilic addition reaction will be most favoured in

Last Answer : Nucleophilic addition reaction will be most favoured in A. `CH_(3)CH_(2)CHO` B. `CH_(3)CHO` C. `CH_(3)CH_(2)CH_(2 ... |)C-CH_(3)` D. `(CH_(3))_(2)C=O`

What is nucleophilic addition reaction ?

Description : What is nucleophilic addition reaction ?

Last Answer : When the attacking species during the addition reaction is Nucleophilic, it is nucleophilic addition reaction. Ex; Acetaldehyde cynohydrin

Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Last Answer : Electrophilic substitution

Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution

Last Answer : Electrophilic substitution

The characteristic reaction of carboxylic acids is : (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic addition (d) nucleophilic substitution

Description : The characteristic reaction of carboxylic acids is : (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic addition (d) nucleophilic substitution

Last Answer : nucleophilic substitution

Why do aldehydes undergo nucleophilic addition reactions while esters undergo nucleophilic acyl substitution reactions? (a) The carbonyl carbon of an ester is more electrophilic than that of an aldehyde. (b) Aldehydes are more sterically hindered than esters. (c) Once the nucleophile adds to an aldehyde, the tetrahedral intermediate is too sterically hindered to eliminate one of the attached groups. (d) Once the nucleophile adds to an aldehyde, neither H− nor R− can be eliminated since they are strongly basic

Description : Why do aldehydes undergo nucleophilic addition reactions while esters undergo nucleophilic acyl substitution reactions? (a) The carbonyl carbon of an ester is more electrophilic than that of an aldehyde. (b) ... adds to an aldehyde, neither H− nor R− can be eliminated since they are strongly basic

Last Answer : Once the nucleophile adds to an aldehyde, neither H− nor R− can be eliminated since they are strongly basic

Which of the following characterizes the reactions of aldehydes and ketones? (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic acyl substitution (d) nucleophilic addition; free radical addition

Description : Which of the following characterizes the reactions of aldehydes and ketones? (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic acyl substitution (d) nucleophilic addition; free radical addition

Last Answer : nucleophilic addition; free radical addition

Acetone reacts with HCN to form a cyanohydrin. It is an example of (a) Electrophilic addition (b) Electrophilic substitution (c) Nucleophilic addition(d) Nucleophilic substitution

Description : Acetone reacts with HCN to form a cyanohydrin. It is an example of (a) Electrophilic addition (b) Electrophilic substitution (c) Nucleophilic addition (d) Nucleophilic substitution

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Alkyl halides undergo (a) Electrophilic substitution reactions (b) Electrophilic addition reactions (c) Nucleophilic substitution reactions (d) Nucleophilic addition reactions

Description : Alkyl halides undergo (a) Electrophilic substitution reactions (b) Electrophilic addition reactions (c) Nucleophilic substitution reactions (d) Nucleophilic addition reactions

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Propene reacts with bromine to form 1,2-dibromopropane. This is an example of (a) Nucleophilic addition (b) Electrophilic addition (c) Nucleophilic substitution (d) Electrophilic substitution

Description : Propene reacts with bromine to form 1,2-dibromopropane. This is an example of (a) Nucleophilic addition (b) Electrophilic addition (c) Nucleophilic substitution (d) Electrophilic substitution

Last Answer : Electrophilic addition

The chlorination of methane to give CCl4 is an example of (a) an electrophilic addition (b) a free-radical substitution (c) a nucleophilic addition (d) an electrophilic substitution

Description : The chlorination of methane to give CCl4 is an example of (a) an electrophilic addition (b) a free-radical substitution (c) a nucleophilic addition (d) an electrophilic substitution

Last Answer : a free-radical substitution

Among the given compounds, the most susceptible to nucleophilic attack at the cabonyl group is:

Description : Among the given compounds, the most susceptible to nucleophilic attack at the cabonyl group is:

Last Answer : Among the given compounds, the most susceptible to nucleophilic attack at the cabonyl group is: A. `MeCOCl` B. `MeCHO` C. `MeCOOMe` D. `MeCOOCOMe`

Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH(III) and C_(6)H_(5)COOH(IV)`?

Description : Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH(III) and C_(6)H_(5)COOH(IV)`?

Last Answer : Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH( ... B. `IVgtIIIgtIIgtI` C. `IVgtIgtIIgtIII` D. `IgtIVgtIIgtIII`

The correct order of decreasing basicity of the following species is: `H_(2)O, OH^(-), CH_(3)OH, CH_(3)O`

Description : The correct order of decreasing basicity of the following species is: `H_(2)O, OH^(-), CH_(3)OH, CH_(3)O`

Last Answer : The correct order of decreasing basicity of the following species is: `H_(2)O, OH^(-), CH_(3)OH, CH_(3)O` A. ... CH_(3)O^(-) gt CH_(3)OH gt H_(2)O`

Arrange the following compounds in increasing order of their acid strength. Benzoic acid, 4-Nitrobenzoic acid, 3, 4-dinitrobenzoic acid, 4-methoxy benzoic acid.

Description : Arrange the following compounds in increasing order of their acid strength. Benzoic acid, 4-Nitrobenzoic acid, 3, 4-dinitrobenzoic acid, 4-methoxy benzoic acid.

Last Answer : Since electron donating gps. decrease the acid strength therefore 4-methoxybenzoic acid is a weaker acid because methoxy sp. is E. D. G. than benzoic acid. Further since electron withdrawing gps. increase ... : 4-methoxybenzoic acid < benzoic acid < 4-nitrobenzoic acid < 3, 4, dinitrobenzoic acid.

Which is the correct order of decreasing acidity in the following compounds? A. H2O B. CH3CH3 C. NH3 D. CH2=CH2 E. HC≡CH (a) A > E > C > D > B (b) A > E > D > B > C (c) E > A > C > B > D (d) A > C > E > D > B

Description : Which is the correct order of decreasing acidity in the following compounds? A. H2O B. CH3CH3 C. NH3 D. CH2=CH2 E. HC≡CH (a) A > E > C > D > B (b) A > E > D > B > C (c) E > A > C > B > D (d) A > C > E > D > B

Last Answer : A > E > C > D > B

When semicarbazide reacts with a ketone (or aldehyde) to form semicarbazone. Only one nitrogen atom of semicarbazide acts as a nucleophile and attack

Description : When semicarbazide reacts with a ketone (or aldehyde) to form semicarbazone. Only one nitrogen atom of semicarbazide acts as a nucleophile and attack

Last Answer : When semicarbazide reacts with a ketone (or aldehyde) to form semicarbazone. Only one ... atoms of semicarbazide are relatively non nucleophilic ?