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
Last Answer : Arrange the following compounds in decreasing order of reactivity for EAR :- (I) `CH_(2)=CH_(2)` (II) `CH_(3)- ... I gt IV` D. `II gt III gt IV gt I`
Description : 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` (
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`
Description : The `S_(N^(1))` reactivity of the following halides will be in the order: (i) `(CH_(3))_(3)C-Br` (ii) `(C_(6)H_(5))CHBr` (iii) `(C_(6)H_(5))_(2)C(CH_(
Last Answer : The `S_(N^(1))` reactivity of the following halides will be in the order: (i) `(CH_(3))_(3)C-Br` (ii) `(C_ ... D. (iii) gt (ii) gt (i) gt (iv) gt (v)
Description : The stability order in the following carbocations, `CH_(3)CH_(2)^(+)"(I), "(CH_(3))_(2)overset(+)CH"(II), "(CH_(3))_(3)C^(+)"(III) "overset(+)CH_(3)"(
Last Answer : The stability order in the following carbocations, `CH_(3)CH_(2)^(+)"(I), "(CH_(3))_( ... B. `IgtIIgtIIIgtIV` C. `IIIgtIVgtIgtII` D. `IIIgtIIgtIgtIV`
Description : `CH_(3)CH_(2)CH(CHO)CH_(2)CH_(3) and CH_(3)CH(CHO) CH_(2)CH_(2)CH_(3)` are :-
Last Answer : `CH_(3)CH_(2)CH(CHO)CH_(2)CH_(3) and CH_(3)CH(CHO) CH_(2)CH_(2)CH_(3)` are :- A. Chain isomer B. Position isomer C. Metamerism D. Functional isomer
Description : Arrange the following in correct order of their stability ? `(I) CH-=overset(Theta)C " "(II) CH_(2)=overset(Theta)CH " "(III) CH_(3)-overset(Theta)CH_
Last Answer : Arrange the following in correct order of their stability ? `(I) CH-=overset(Theta)C " "(II) CH_(2)=overset( ... gt III gt I` D. `II gt I gt III`
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`
Description : On vigorous oxidation by permangnate solution `(CH_(3))_(2)=CHCH_(2)CHO` gives
Last Answer : On vigorous oxidation by permangnate solution `(CH_(3))_(2)=CHCH_(2)CHO` gives A. `(CH_(3))_(2)CO` and `OHC ... CH_(3))_(2)CO` and `CH_(2)(COOH)_(2)`
Description : In the reaction , `(CH_(3))_(3)C CHO +HCHO overset(NaOH)underset("heat")toA+B` the products (A) and (B) are respectively
Last Answer : In the reaction , `(CH_(3))_(3)C CHO +HCHO overset(NaOH)underset("heat")toA+B` the products (A) and (B) ... (CH_(3))_(3)COONa` and `HCOO^(-) Na^(+)`
Description : Arrangements of `(CH_(3))_(3)C-,(CH_(3))_(2)CH-,CH_(3).CH_(2)-` when attached to benzyl or `n` unsaturated group in increasing order of inductive effe
Last Answer : Arrangements of `(CH_(3))_(3)C-,(CH_(3))_(2)CH-,CH_(3).CH_(2)-` when attached to benzyl or `n` unsaturated ... C- lt CH_(3)CH_(2)- lt(CH_(3))_(2)CH-`
Description : Which of the following pairs of ions is more stable? (a) `CH_(3)CH_(2)O^(Ө)and CH_(2)=underset("(II)")(CH)-O^(Ө)` (b) `(CH_(3))_(2)underset("(I)")over
Last Answer : Which of the following pairs of ions is more stable? (a) `CH_(3)CH_(2)O^(Ө)and CH_(2)=underset("(II)" ... underset(..)O-CH=CH-CH=overset(o+)"N"Me_(2)`
Description : Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5)+HBr` (ii) `(CH_(3))_(2)CH-CH_(2)Broverse
Last Answer : Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5) ... N^(1))` D. `S_(N^(2)) and S_(N^(2))`
Description : Which of the following compounds can show geometrical isomerism : (i) Pent-1-ene (ii) 1-chloropropene (iii) 2-Methylbut-2-ene (iv) `CH_(3)-CH=CH-CH_(3
Last Answer : Which of the following compounds can show geometrical isomerism : (i) Pent-1-ene (ii) 1-chloropropene (iii) 2- ... -ene (iv) `CH_(3)-CH=CH-CH_(3)`
Description : (i) `CH_(2)=CH-CH_(2)-CH=CH_(2)` (ii) `CH_(2)=CH-CH=CH-CH_(3)` (iii) `CH_(3)-CH=CH-CH=CH-CH_(3)` The numbers of possible geometrical isomers for the a
Last Answer : (i) `CH_(2)=CH-CH_(2)-CH=CH_(2)` (ii) `CH_(2)=CH-CH=CH-CH_(3)` (iii) `CH_(3)-CH=CH-CH=CH-CH_(3)` The ... . 0, 2, 4 B. 2, 2 4 C. 0, 3, 3 D. 0,23
Description : Consider the following structure `{:(underset("I")(CH_(2)C=overset(+)CH)" , "underset("II")(CH_(3)-overset(+)CH_(2))),(underset("III")(H_(2)C=CH-overs
Last Answer : Consider the following structure `{:(underset("I")(CH_(2)C=overset(+)CH)" , "underset("II")(CH_(3)-overset(+) ... C. `IV,II,III,I` D. `I,III,II,IV`
Description : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) " " (iii) NO_(2)^(-) " " (iv)Cl^(-)` `(v)
Last Answer : How many anions evolve brownish gas when treated with dil. /con. HCl ? `(i) CO_(3)^(2-) " " (ii)SO_(3)^(2-) ... NO_(3)^(-) " " (vii) CH_(3)CO O^(-)`
Description : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i)Conc. NaOH")underset((ii)H^(+)) to` product is
Last Answer : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i) ... )C-C-C-CH_2),(" | ||"),(" "H_(3)C " "OH):}`
Description : Correct order of basic strength in gas phase is (I) `CH_(3)-NH_(2)` (II) `(CH_(3))_(2)NH` (III) `(CH_(3))_(3)N` (IV) `NH_(3)`
Last Answer : Correct order of basic strength in gas phase is (I) `CH_(3)-NH_(2)` (II) `(CH_(3))_(2)NH` (III) `(CH_(3))_(3 ... C` C. `A gt C gt B` D. `C gt A gt B`
Description : Which is the increasing order of acidic strength in the following compounds ? `CH_(3)CH_(2)CH_(2)COOH(I), "NCCH"_(2)COOH(II), H_(2)C=CHCH_(2)COOH(III)
Last Answer : Which is the increasing order of acidic strength in the following compounds ? `CH_(3)CH_(2)CH_(2) ... B. `IltIIIltII` C. `IIIltIIltI` D. `IIltIltIII`
Description : `CH_(3)CH_(2)CH(OH)CH(CH_(3))_(2)+CH_(3)COCI overset("base")rarr CH_(3)CH_(2)CH(OCOCH_(3))CH(CH_(3))_(2)+HCI` In the above reaction, if the reactant a
Last Answer : `CH_(3)CH_(2)CH(OH)CH(CH_(3))_(2)+CH_(3)COCI overset("base")rarr CH_(3)CH_(2) ... the same configuration at the chiral atom D. be optically inactive
Description : Which types of mechanism take place in sec-halides, `(CH_(3))_(2)CH-X`?
Last Answer : Which types of mechanism take place in sec-halides, `(CH_(3))_(2)CH-X`? A. `S_(N^(1))` B. `S_(N^(2))` C. `S_(N^(1)) and S_(N^(2))` D. None of these
Description : The IUPAC name of `C_(2)H_(5)-O-CH(CH_(3))_(2)`
Last Answer : The IUPAC name of `C_(2)H_(5)-O-CH(CH_(3))_(2)` A. Ethoxy propane B. 1,1-dimenthyl ether C. 2- Ethoxy isopropane D. 2-Ethoxy propane
Description : The order of stability of the following carbocations: `underset("I")(CH_(2)C=CH-overset(o+)CH_(2))" , "underset("II")(CH_(3)-CH_(2)-overset(o+)CH_(2))
Last Answer : The order of stability of the following carbocations: `underset("I")(CH_(2)C=CH-overset(o+)CH_(2))" , "underset ... . II gt III gt I D. I gt II gt III
Description : What is the correct order of decreasing stability of the following cations ? `overset(oplus)underset(CH_(3)-CH-CH_(3)` II `overset(oplus)underset(CH_(
Last Answer : What is the correct order of decreasing stability of the following cations ? `overset(oplus)underset(CH_(3)-CH-CH_( ... gt I gt III D. II gt III gt I
Description : 1 g of complex `[Cr(H_(2)O)_(5)Cl]Cl_(2).H_(2)O` was passed through a cation exchanger to produce HCl. The acid liberated was diluted to 1 litre. What
Last Answer : 1 g of complex `[Cr(H_(2)O)_(5)Cl]Cl_(2).H_(2)O` was passed through a cation ... molarity of acid solution [Molecular weight of complex=266.5]?
Description : 22. \( H _{2} O \) can act either as an acid or base. Which of the following reaction best illustrate the behaviour of water as a base?(a) \( H _{2} O + NH _{3} \rightarrow OH ^{+}+ NH _{4}^{-} \)(b) \( H _{ ... O \rightarrow H _{3} O ^{+}+ Cl ^{-} \)(d) \( HCl + NaOH \rightarrow NaCl + H _{2} O \)
Last Answer : 22. \( H _{2} O \) can act either as an acid or base. Which of the following reaction best illustrate ... HCl + NaOH \rightarrow NaCl + H _{2} O \)
Description : 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)
Last Answer : Arrange the following in order of decreasing tendency towards `S_(N^(2))` reaction : `{: ... `IIIgtIVgtIIgtI` C. `IgtIIIgtIIgtIV` D. `IIgtIgtIIIgtIV`
Description : The increasing order of reactivity among group 1 elements is Li
Last Answer : Ans. In group 1 elements (alkali metals) the reactivity of the metals is mainly due to the electron releasing tendency of their atoms, which is related to ionization enthalpy, Since ... electron gain enthalpy. Since both of them decrease down the group, the reactivity therefore decreases.
Description : Which of the following statements correctly describes the general reactivity of alkynes? (a) An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. (b) The σ bonds ... fail to undergo electrophilic addition reactions. (d) Alkynes are generally more reactive than alkenes.
Last Answer : Alkynes are generally more reactive than alkenes.
Description : Predict the products in the given reaction CHO Cl 50% KOH (1) OH OH OH O - O (2) OH Cl Cl O O - (3) OH OH OH OH (4) OH Cl Cl O - O Sol: [4] CHO Cl 50% KOH COOK Cl Cl OH
Last Answer : CHO Cl 50% KOH COOK Cl Cl OH
Description : How many compounds liberate `NH_(3)` on heating from the following ? (i) `(NH_(4))_(2)SO_(4) " " (ii) (NH_(4))_(2)CO_(3) " " (iii) NH_(4)Cl` (iv) `NH_
Last Answer : How many compounds liberate `NH_(3)` on heating from the following ? (i) `(NH_(4))_(2)SO_(4) " " (ii) (NH_(4)) ... 3) " " (v) (NH_(4))_(2)Cr_(2)O_(7)`
Description : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.
Last Answer : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.
Description : Arrange the following in correct order of reactivity towards `Cl_(2)//hupsilon` (A) `CH_(4)` (B) `CH_(3)CH_(3)` (C ) `CH_(3)CH_(2)CH_(3)` (D) `CH_(3)-
Last Answer : Arrange the following in correct order of reactivity towards `Cl_(2)//hupsilon` (A) `CH_(4)` (B) `CH_(3)CH_(3)` ( ... gt A gt D` D. `C gt B gt D gt A`
Description : The order of reactivity of following alcohols, towards conc. HCl is :
Last Answer : The order of reactivity of following alcohols, towards conc. HCl is : A. `IgtIIgtIIIgtIV` B. `IgtIIIgtIIgtIV` C. `IVgtIIIgtIIgtI` D. `IVgtIIIgtIgtII`
Description : Arrange the following in order of decreasing reactivity towards alkanes. HCl, HBr, HI, HF
Last Answer : Ans. HI> HBr> HCl >HF
Description : The compound which produce propane on heating with HI in presence of red P is `(a) CH_(3)CH_(2)CH_(2)I " "(b) CH_(3)CH_(2)CHO` `(c) CH_(3)CH_(2)CH_(2)
Last Answer : The compound which produce propane on heating with HI in presence of red P is `(a) CH_(3)CH_(2)CH_(2)I " "(b) ... Only c B. b, c C. b, c, d D. All
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
Description : Which is the decreasing oreder of acidity in the following compounds? `{:(CH_(3)CH_(2)OH"(I) "CF_(3)CH_(2)OH"(II)"),("CCl"_(3)-CH_(2)OH"(III) "(NO_(2)
Last Answer : Which is the decreasing oreder of acidity in the following compounds? `{:(CH_(3)CH_(2)OH ... `IIgtIgtIIIgtIV` C. `IVgtIIgtIgtIII` D. `IVgtIIgtIIIgtI`
Description : The decreasing order of bond dissociation energy of C-H bond in given compound is :- (A) `CH_(3)-H` (B) `CH_(3)-CH_(2)-H` `CH_(2)=CH-CH_(2)-H` (D)
Last Answer : The decreasing order of bond dissociation energy of C-H bond in given compound is :- (A) `CH_(3)-H` (B) `CH_(3)- ... gt B gt A` D. `C gt B gt A gt D`
Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`
Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`
Description : For the given compound `CH_(3)-underset(overset(|)(OH))(CH)-CH=CH-CH_(3).` (i) Total number of stereoisomers. (ii) Number of opticallly active stereoi
Last Answer : For the given compound `CH_(3)-underset(overset(|)(OH))(CH)-CH=CH-CH_(3).` ... number of fractions on fractional distillation of all stereoisomers.
Description : Predict which of the following alkenes reacts the fastest with HCl? (a) CH3CH2CH2CH2CH=CH2 (b) cis-CH3CH2CH=CHCH2CH3 (c) trans-CH3CH2CH=CHCH2CH3 (d) (CH3)2C=CHCH2CH3
Last Answer : (CH3)2C=CHCH2CH3
Description : Arrange the following carbocations in order of increasing stability : `{:(underset("(I)")((CH_(3))_(3)Coverset(+)CH_(2))", "underset("(II)")((CH_(3))_
Last Answer : Arrange the following carbocations in order of increasing stability : `{:(underset("(I)")((CH_ ... ` C. `IltIIIltIVltII` D. `IIltIVltIII ltI`
Description : In \( III ^{ rd } \) group of salt analysis for cations \( NH _{4} Cl \) and \( NH _{4} OH \) are added as group reagents. Which of the following can be used instead of \( NH _{4} Cl \) ?(a) \( NaCl \)(b) \( \left( NH _ ... \)(c) \( \left( NH _{4}\right)_{2} C _{2} O _{4} \)(d) \( NH _{4} NO _{3} \)
Last Answer : In \( III ^{ rd } \) group of salt analysis for cations \( NH _{4} Cl \) and \( NH _{4} OH \) are added as ... O _{4} \) (d) \( NH _{4} NO _{3} \)