Description : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_
Last Answer : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii)," ... ,((ix),"conc." H_(2)SO_(4) + Cu rarr,,):}`
Description : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_(2)O)_(6)]Cl_(2)`, `K_(2)[Pt(CN)_(4)]` and
Last Answer : Among the following complexes : `K_(3)[Fe(CN)_(6)],[Co(NH_(3))_(6)]Cl_(3)` , `Na_(3)[Co ( o x )_(3)],[Ni(H_( ... ,M,N B. K,N,O,P C. L,M,O,P D. L,M,N,O
Description : The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN)toG overset(95% H_(2)SO_(4)) underset("Heat")toH`
Last Answer : The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN) ... CH=underset(CH_(3))underset(|)(C)-CO-NH_(2)`
Description : What are X and Y in the reaction `C_(2)H_(4) + H_(2)SO_(4) overset(80^(@)C)rarr X overset(H_(2)O//Delta)rarr Y`
Last Answer : What are X and Y in the reaction `C_(2)H_(4) + H_(2)SO_(4) overset(80^(@)C)rarr X overset(H_(2)O//Delta) ... C_(2)H_(5)OH` D. `C_(2)H_(2), CH_(3)CHO`
Description : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the oxidation number of central atom that is responsible for green flame
Last Answer : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the ... atom that is responsible for green flame in compound `(A)`?
Description : `(CH_(3))_(3)C - OH overset(H_(2)SO_(4)) rarr (CH_(3))_(2) C = CH_(2)`, This reaction takes place through
Last Answer : `(CH_(3))_(3)C - OH overset(H_(2)SO_(4)) rarr (CH_(3))_(2) C = CH_(2)`, This reaction ... )2` mechanism C. `E_(1)` mechanism D. `E_(2)` mechanism
Description : I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2)O_(7)` to red colour `Cr_(2)(SO_(4))_(3)` III. `H_(2
Last Answer : I. `H_(2)S` reduces acidified `KMnO_(4)` to `MnSO_(4)` II. `H_(2)S` reduces acidified `K_(2)Cr_(2) ... and III C. only II and III D. I,II,III and IV
Description : What will be the oxidation number of Fe in `K_(3)[Fe(CN)_(6)]` :-
Last Answer : What will be the oxidation number of Fe in `K_(3)[Fe(CN)_(6)]` :- A. `+4` B. `+3` C. `+2` D. Zero
Description : The oxidation number of iron in potassium ferricyanide `[K_(3)Fe(CN)_(6)]` is :-
Last Answer : The oxidation number of iron in potassium ferricyanide `[K_(3)Fe(CN)_(6)]` is :- A. Two B. Six C. Three D. Four
Description : In `K_(4)[Fe(CN)_(6)],Fe` is in the form of
Last Answer : In `K_(4)[Fe(CN)_(6)],Fe` is in the form of A. An atom B. Neutral complex C. Cationic complex D. Anionic complex
Description : IUPAC name of `K_(3)[Fe(CN)_(6)]` is
Last Answer : IUPAC name of `K_(3)[Fe(CN)_(6)]` is A. Potassium hexacyanoferrate(II) B. ... C. Potassium hexacyanoiron(II) D. Tripotassium hexacyanoiron(II)
Description : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` orange red vapours are obtained. These are of the compound
Last Answer : When a mixture of solid NaCl, solid `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2 ... B. chromyl chloride C. chromic chloride D. chromic sulphate
Description : What would be the equivalent weight of the reductant in the reaction : `[Fe(CN)_(6)]^(-3)+H_(2)O_(2)+2OH^(-)rarr2[Fe(CN)_(6)]^(4-)+2H_(2)O+O_(2)` [Giv
Last Answer : What would be the equivalent weight of the reductant in the reaction : `[Fe(CN)_(6)]^(-3)+H_(2)O_(2)+2OH^(-) ... O=16,H=1]` A. 17 B. 212 C. 34 D. 32
Description : The oxidation state of Cr in `[Cr(H_(2)O)_(6)]Cl_(3), [Cr(C_(6)H_(6))_(2)], and K_(2)[Cr(CN)_(2)(O)_(2)(O_(2))(NH_(3))]` respectively are :
Last Answer : The oxidation state of Cr in `[Cr(H_(2)O)_(6)]Cl_(3), [Cr(C_(6)H_(6))_(2)], and K_(2)[Cr(CN)_(2)(O)_(2 ... and +4` C. `+3,+4 and +6` D. `+3,+2 and +4`
Description : `C_(6)H_(5)-CH_(2)-I overset(NaN_(3))underset(Delta)rarr` Products Reaction is assumed to involve nitrene as intermediate, then various possible produ
Last Answer : `C_(6)H_(5)-CH_(2)-I overset(NaN_(3))underset(Delta)rarr` Products Reaction is assumed to involve nitrene as ... (2)` C. `C_(6)H_(5)CN=NH` D.
Description : The major product formed in the reaction: `overset(p-TsOH("Trace"))underset(C_(6)H_(6).Delta)rarr`
Last Answer : The major product formed in the reaction: `overset(p-TsOH("Trace"))underset(C_(6)H_(6).Delta)rarr` A. B. C. D.
Description : In the given reaction sequence `C_(6)H_(5)-CH_(2)-NH_(2) overset(CHCl_(3)//Alc.KOH)underset(Delta)rarr [X] overset(H_(2)O //NaOH)rarr [Y],[Y]` will be
Last Answer : In the given reaction sequence `C_(6)H_(5)-CH_(2)-NH_(2) overset(CHCl_(3)//Alc.KOH)underset(Delta)rarr [X] ... -NH_(2)` D. `C_(6)H_(5)-CH_(2)OH`
Description : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. (ii) What will be structure ? (iii) How many unpaired electrons are
Last Answer : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. ... the complex. (vi) What will be the hybridisation of the complex.
Description : `[X]+H_(2)SO_(4) rarr [Y]` a colourless gas with irritating smell `[Y] + K_(2)Cr_(2)O_(7) + H_(2)SO_(4) rarr` green solution `[X]` and `[Y]` are
Last Answer : `[X]+H_(2)SO_(4) rarr [Y]` a colourless gas with irritating smell `[Y] + K_(2)Cr_(2)O_(7) + H_(2)SO_(4) rarr ... 2-), H_(2)S` D. `CO_(3)^(2-), CO_(2)`
Description : `"phenol" overset(conc.H_(2)SO_(4))rarrA overset(conc.HNO_(3))rarrB` Here A and B are respectively.
Last Answer : `"phenol" overset(conc.H_(2)SO_(4))rarrA overset(conc.HNO_(3))rarrB` Here A and B ... 4-dinitrophenol D. 3-Hydroxybenzene sulphonic acid, picric acid
Description : `Ph - underset(OH) underset(|)overset(CH_(3))overset(|)(C) - underset(OH) underset(|)overset(Ph)overset(|)(C) - Ph underset(H_(2)SO_(4))overset("Conc"
Last Answer : `Ph - underset(OH) underset(|)overset(CH_(3))overset(|)(C) - underset(OH) underset(|)overset(Ph)overset(| ... ) - underset(O)underset(||)(C) - CH_(3)`
Description : `overset(1.Br_(2)^(-)+KOH, Delta)underset(2.H_(3)O^(o+))rarr` The product of above reaction is:
Last Answer : `overset(1.Br_(2)^(-)+KOH, Delta)underset(2.H_(3)O^(o+))rarr` The product of above reaction is: A. B. C. D.
Description : The major product (X) of the reaction is: `overset(H_(2),Ni)underset(Delta)rarr X`
Last Answer : The major product (X) of the reaction is: `overset(H_(2),Ni)underset(Delta)rarr X` A. B. C. D.
Description : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+Znrarr [Y]+Au` Identify the complexes `[X]
Last Answer : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+ ... (4)]^(-),[Y] =[Zn (CN_(4))]^(-2)`
Description : Which of the following compounds can be used for drying of `H_(2)S` gas? I. Conc `H_(2)SO_(4)` II. `P_(4)O_(10)` III. Anhydrous `CaC1_(2)` IV. Anhydro
Last Answer : Which of the following compounds can be used for drying of `H_(2)S` gas? I. Conc `H_(2)SO_(4)` II. ` ... IV B. only I C. only II and III D. only III
Description : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O)_(5)NO]SO_(4)` has three unpaired electrons .
Last Answer : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O) ... is false D. Statement-1 is false, statement-2 is true.
Description : `C_(2)H_(5)OH overset(KMnO_(4)//H^(oplus))rarrX underset(H_(2)SO_(4))overset(Y)rarr CH_(3)COOC_(2)H_(5)`, X and Y respectively are
Last Answer : `C_(2)H_(5)OH overset(KMnO_(4)//H^(oplus))rarrX underset(H_(2)SO_(4))overset(Y)rarr CH_(3)COOC_(2)H_(5)` ... CH_(3)COOH` D. `CH_(3)COOH, C_(2)H_(5)OH`
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 : Consider the following sequence of reactions: `overset(C CI_(4))underset(Delta)rarr A overset(1.CH_(2)=CH-CH_(2)Br)underset(2.H_(3)O^(o+),Delta)rarrB`
Last Answer : Consider the following sequence of reactions: `overset(C CI_(4))underset(Delta)rarr A overset(1.CH_(2)=CH-CH_(2) ... end product (B) is: A. B. C. D.
Description : `CH_(3)CH_(2)Br overset(AgCN)rarr A overset(NaOH, Delta)underset(overset(o+)(H_(3)O))rarrB,(B)` is:
Last Answer : `CH_(3)CH_(2)Br overset(AgCN)rarr A overset(NaOH, Delta)underset(overset(o+)(H_(3)O))rarrB,(B)` is: A. `CH_( ... (2)NH_(2)` C. `CH_(3)CH_(2)NH_(2)` D.
Description : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) Mg (vi) MgO (vii) `CoCO_(3)` (viii) `CuCO_(2)` (ix)
Last Answer : Cold dil. `H_(2)SO_(4)` will completely dissolve : (i) Pb (ii) `Fe_(3)O_(4)` (iii) Fe (iv) Cu (v) ... ) `CoCO_(3)` (viii) `CuCO_(2)` (ix) `SrCO_(3)`
Description : In how many of the following reactions `N_(2)` gas may be released `{:((a) NH_(4)NO_(2) overset(Delta)rarr,(b) (NH_(4))_(2) Cr_(2)O_(7) overset(Delta)
Last Answer : In how many of the following reactions `N_(2)` gas may be released `{:((a) NH_(4)NO_(2) overset(Delta) ... i) Ba(N_(3))_(2) overset(Delta) rarr):}`
Description : `overset(1.Br_(2)(1"mole"), C CI_(4))underset(2.(CH_(3))_(2)NH("excess"))rarr A overset(1.CH_(3)I("excess"))underset(2.AgOH,Delta)rarr B` (Major produ
Last Answer : `overset(1.Br_(2)(1"mole"), C CI_(4))underset(2.(CH_(3))_(2)NH("excess"))rarr A overset(1.CH_(3) ... product) The major product (B) is: A. B. C. D.
Description : `underset(OH^(Ɵ))overset("Conc.")rarr` Incorrect statement (s) reagarding the reaction is/are:
Last Answer : `underset(OH^(Ɵ))overset("Conc.")rarr` Incorrect statement (s) reagarding the reaction is/are: ... . D. Reaction is an example of redox reaction
Description : In the given reaction `CH_(3)-CH_(2)-NH-CH_(2)-CH_(2)-CI overset((i)CH_(3)I ("excess"))underset((ii)AgOH//Delta)rarr[X]` is the major product, [X] wil
Last Answer : In the given reaction `CH_(3)-CH_(2)-NH-CH_(2)-CH_(2)-CI overset((i)CH_(3)I ("excess"))underset((ii)AgOH// ... of (a) and (b) D. `CH_(3) -CH_(2)-CI`
Description : In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` (Unbalance equation) 20 mL of 0.1 M `KMnO_(4)` react quantitive
Last Answer : In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` ( ... . 40 mL of 0.1 M oxalate D. 50 mL of 0.25 M oxalate
Description : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R): The reaction involves cleavage of C-O bo
Last Answer : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R ... R is false D. A is false but R is true
Description : The element evoloving two different gases on reaction with conc. `H_(2)SO_(4)` is :
Last Answer : The element evoloving two different gases on reaction with conc. `H_(2)SO_(4)` is : A. P B. C C. Hg D. S.
Description : Statement-I : Conc. `H_(2)SO_(4)` is low volatillity and viscos nature acid Statement-II : It is due to Hydrogen bonding
Last Answer : Statement-I : Conc. `H_(2)SO_(4)` is low volatillity and viscos nature acid Statement-II : ... Statement-I is not correct and Statement-II is correct
Description : Find the valence factor for following salts : (i) `K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O " " (ii) CaCO_(3)`
Last Answer : Find the valence factor for following salts : (i) `K_(2)SO_(4).Al_(2)(SO_(4))_(3).24H_(2)O " " (ii) CaCO_(3)`
Description : In the reaction, `C_(6)H_(5)NH_(2)underset(0-5^(@)C)overset(NaNO_(2)+HCl)rarr(A)underset(KCN)overset(CuCN)rarr(B)overset(H^(+)//H_(2)O)rarr(C)` the pr
Last Answer : In the reaction, `C_(6)H_(5)NH_(2)underset(0-5^(@)C)overset(NaNO_(2)+HCl)rarr(A)underset(KCN)overset(CuCN ... COOH` C. `C_(6)H_(5)OH` D. none of these
Description : `C_(6)H_(5)-O-CH_(2)CH_(3)overset(HI)rarr` which of the following is not formed in this reaction ?
Last Answer : `C_(6)H_(5)-O-CH_(2)CH_(3)overset(HI)rarr` which of the following is not formed in this reaction ? A. ... )H_(5)-OH` C. Both of these D. None of these
Description : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction oxidation state of iron .
Last Answer : Sulphide ion reacts with `[Fe(CN)_(5)NO]` to form a purple coloured compound (X). In this reaction ... . changes from +2 to +4 D. does not change.
Description : `{:("Column" (I) , "Column"(II)), ((a) "Presence of halogen" , P. HNO_(3)//AgNO_(3)), ((b) "Presence of sulphur" , Q. Na_(2)[Fe(CN)_(5)NO]) , ((c) "Pr
Last Answer : `{:("Column" (I) , "Column"(II)), ((a) "Presence of halogen" , P. HNO_(3)//AgNO_(3)), ((b) "Presence ... (d) "Presence of" P "and" S , S. FeCl_(3)):}`
Description : How many compound(s) or iron (s) can be oxidised by `H_(2)O_(2)` among the following (i) `AsO_(3)^(2)` (ii) `SO_(4)^(2-)` (iii) `Fe_(2) (SO_(4))_(3)`
Last Answer : How many compound(s) or iron (s) can be oxidised by `H_(2)O_(2)` among the following (i) `AsO_(3)^(2)` (ii) ... ` (v) `H_(2)S` (vi) PbS (vii) `O_(3)`