Phenol on treatment with conc. `HNO_(3)` gives

Phenol on treatment with conc. `HNO_(3)` gives
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Phenol on treatment with conc. `HNO_(3)` gives A. picric acid B. o-and m-nitrophenols C. cresol D. resorcinol
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Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Description : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Last Answer : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K" ... -nitroaniline D. toluene, m-nitrobenzene and m-toulidine

`"phenol" overset(conc.H_(2)SO_(4))rarrA overset(conc.HNO_(3))rarrB` Here A and B are respectively.

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

Anisole with conc. `HNO_(3)` and conc. `H_(2)SO_(4)` gives

Description : Anisole with conc. `HNO_(3)` and conc. `H_(2)SO_(4)` gives

Last Answer : Anisole with conc. `HNO_(3)` and conc. `H_(2)SO_(4)` gives A. Phenol B. Nitrobenzene C. O - and - P - Nitroanisole D. O- Nitroanisole

Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the fol

Description : Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the fol

Last Answer : Aniline reacts with mixed acid (conc. `HNO_(3)` and conc. `H_(2)SO_(4)`) at 288 K to give P ... of the following reaction sequence is (are) B. C. D.

Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ?

Description : Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ?

Last Answer : Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ? A. `NO_(2)` B. `O_(2)` C. `N_(2)` D. `N_(2)O`

Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

Description : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

Last Answer : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ?

Description : Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ?

Last Answer : Which gas is evolved when `PbO_(2)` is treated with conc `HNO_(3)` ? A. `NO_(2)` B. `O_(2)` C. `N_(2)` D. `N_(2)O`

Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

Description : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

Last Answer : Cold conc. `HNO_(3)` will completely dissolve: (i) Pb (ii) `Pb_(3)O_(4)` (iii) Fe (iv) Sn (v) Mg (vi) MgO (vii) Hg (viii) Au (ix) Ag (x) Pt

When a mixture containing phosphate is heated with conc. `HNO_(3)` and ammonium molybdated solution, a canary yellow precipitate is formed . The formu

Description : When a mixture containing phosphate is heated with conc. `HNO_(3)` and ammonium molybdated solution, a canary yellow precipitate is formed . The formu

Last Answer : When a mixture containing phosphate is heated with conc. `HNO_(3)` and ammonium molybdated solution, a canary yellow ... PO_(4). (NH_(4))_(2)MO_(4)`

In the nitration of benzene with a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`, the active species involved is :

Description : In the nitration of benzene with a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`, the active species involved is :

Last Answer : In the nitration of benzene with a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`, ... ion B. nitrate ion C. nitronium ion D. nitrogen dioxide

Among the following the number of compounds that can act as dehydrating agent are …… `Conc. H_(2)SO_(4),"Anhyd". CaCl_(2),Conc. HNO_(3), CaO, CuSO_(4)

Description : Among the following the number of compounds that can act as dehydrating agent are …… `Conc. H_(2)SO_(4),"Anhyd". CaCl_(2),Conc. HNO_(3), CaO, CuSO_(4)

Last Answer : Among the following the number of compounds that can act as dehydrating agent are `Conc. H_(2)SO_(4),"Anhyd" ... CaO, CuSO_(4).5H_(2)O, P_(2)O_(5)`

Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields `,`

Description : Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields `,`

Last Answer : Phenol when condensed with phthalic anhydride in the presence of conc. `H_(2)SO_(4)`, yields ... orange B. Phenolphthaline C. Aspirin D. Methyl Blue

Which of the following give nitrosonamine on treatment with `HNO_(2)`?

Description : Which of the following give nitrosonamine on treatment with `HNO_(2)`?

Last Answer : Which of the following give nitrosonamine on treatment with `HNO_(2)`? A. B. `H_(3)C-underset(CH_(3))underset(|)(CH)-CH_(2)-NH_(2)` C. D.

A compound ‘X’ on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound ‘Y’. ‘X’ also reacts with sodium metal to evolve a colourless gas ‘Z’. Identify ‘X’, ‘Y’ and ‘Z’. Write the equation of the chemical reaction of formation of ‘Y’ and also write the role of sulphuric acid in the reaction. -Science

Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science

Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.

Sodium borate on reaction with conc. `H_2 SO_4` and `C_2 H_5 OH` gives a compound A which burns with a green edged flame. The compound A is

Description : Sodium borate on reaction with conc. `H_2 SO_4` and `C_2 H_5 OH` gives a compound A which burns with a green edged flame. The compound A is

Last Answer : Sodium borate on reaction with conc. `H_2 SO_4` and `C_2 H_5 OH` gives a compound A which burns with a green edged ... ` D. `(C_(2)H_(5))_(3)BO_(3)`

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

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

One mole of diethyl ether on heating with conc. HI gives

Description : One mole of diethyl ether on heating with conc. HI gives

Last Answer : One mole of diethyl ether on heating with conc. HI gives A. 1 mole of `C_(2)H_(5)I` and 1 ... Iodoethane and ethonol but not in a `1:1` mole ratio

which one of the following salts will evolve halogen on treatment with conc. `H_(2)SO_(4)` ?

Description : which one of the following salts will evolve halogen on treatment with conc. `H_(2)SO_(4)` ?

Last Answer : which one of the following salts will evolve halogen on treatment with conc. `H_(2)SO_(4)` ? A. (A) NaCI B. KI C. (C) NaBr D. (D) none of these

Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives:

Description : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives:

Last Answer : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives ... C. nitrobenzene D. 2,4,6-rinitrobenzene

(D) on reaction with phenol under alkaline conditions gives :

Description : (D) on reaction with phenol under alkaline conditions gives :

Last Answer : (D) on reaction with phenol under alkaline conditions gives : A. diazobenzene B. hydrazobenzene C. benzidine D. para hydroxy azobenzene

Phenol reacts with which one of the following reagents gives a conjugate diketone will be formed ?

Description : Phenol reacts with which one of the following reagents gives a conjugate diketone will be formed ?

Last Answer : Phenol reacts with which one of the following reagents gives a conjugate diketone will be formed ? A. `Na_(2)Cr_(2 ... `Na_(2)Cr_(2)O_(7)+H_(2)SO_(4)`

Benzene diazonium chloride on reaction with phenol in a basic medium gives:

Description : Benzene diazonium chloride on reaction with phenol in a basic medium gives:

Last Answer : Benzene diazonium chloride on reaction with phenol in a basic medium gives: A. benzene B. chlorobenzene C. diphenyl ether D. p-hydroxy azobenzene

Phenol on distilling with zinc dust gives

Description : Phenol on distilling with zinc dust gives

Last Answer : Phenol on distilling with zinc dust gives A. benzene B. diphenyl ether C. diphenol D. zinc phenoxide

When phenol is treated with excess of bromine water, it gives

Description : When phenol is treated with excess of bromine water, it gives

Last Answer : When phenol is treated with excess of bromine water, it gives A. m-bromophenol B. o-and p-bromophenol C. 2, 4-dibromophenol D. 2, 4,6-tribromophenol

Phenol on heating with NaOH followed by reaction with alky1 halide gives

Description : Phenol on heating with NaOH followed by reaction with alky1 halide gives

Last Answer : Phenol on heating with NaOH followed by reaction with alky1 halide gives A. Acetone B. Ether C. Ethonal D. Acetic acid

Anisole on heating with concentrated HI gives (a) Iodobenzene (b) Phenol + CH3I (c) Iodobenzene + CH3OH (d) Phenol + CH3OH

Description : Anisole on heating with concentrated HI gives (a) Iodobenzene (b) Phenol + CH3I (c) Iodobenzene + CH3OH (d) Phenol + CH3OH

Last Answer : Phenol + CH3I

Hydrolysis of benzotrichloride gives (a) Benzophenone (b) Benzoic acid (c) Benzyl alcohol (d) Phenol

Description : Hydrolysis of benzotrichloride gives (a) Benzophenone (b) Benzoic acid (c) Benzyl alcohol (d) Phenol

Last Answer : Benzoic acid

Hydrolysis of benzal chloride gives (a) Phenol (b) Benzaldehyde (c) Benzyl alcohol(d) Benzoyl chloride

Description : Hydrolysis of benzal chloride gives (a) Phenol (b) Benzaldehyde (c) Benzyl alcohol (d) Benzoyl chloride

Last Answer : (d) Benzoyl chloride

Phenol on distillation with Zinc dust gives (a) Phenylzinc (b) Benzene (c) Cyclohexanone (d) Benzoic acid

Description : Phenol on distillation with Zinc dust gives (a) Phenylzinc (b) Benzene (c) Cyclohexanone (d) Benzoic acid

Last Answer : Benzene

Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Description : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the major product. X on treatment with `(

Last Answer : Phenol on treatment with `CO_(2)` in the presence of `NaOH` followed by acidification produces compound X as the ... `H_(2)SO_(4)` produces B. C. D.

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. (A) Epoxy (B) Phenol formaldehyde (C) Urea formaldehyde (D) Melamine formaldehyde

Description : Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. (A) Epoxy (B) Phenol formaldehyde (C) Urea formaldehyde (D) Melamine formaldehyde

Last Answer : (C) Urea formaldehyde

Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa

Description : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. Reason :- The oxidation number of Nitrogen remains sa

Last Answer : Assertion :- Nitrous acid `(HNO_(2))` may act as an oxidising agent as well as a reducing agent. ... False. D. If both Assertion & Reason are False.

In the reaction :- `C+4HNO_(3)rarrCO_(2)+2H_(2)O+4NO_(2)` `HNO_(3)` acts as :-

Description : In the reaction :- `C+4HNO_(3)rarrCO_(2)+2H_(2)O+4NO_(2)` `HNO_(3)` acts as :-

Last Answer : In the reaction :- `C+4HNO_(3)rarrCO_(2)+2H_(2)O+4NO_(2)` `HNO_(3)` acts as :- A. An oxidising agent B. An acid C. A reducing agent D. None of them

`HNO_(2)` acts as an oxidant with which one of the following reagent :-

Description : `HNO_(2)` acts as an oxidant with which one of the following reagent :-

Last Answer : `HNO_(2)` acts as an oxidant with which one of the following reagent :- A. `KMnO_(4)` B. `H_(2)S` C. `K_(2)Cr_(2)O_(7)` D. `Br_(2)`

What is the number of moles of O-atom in 126 amu of `HNO_(3)` ?

Description : What is the number of moles of O-atom in 126 amu of `HNO_(3)` ?

Last Answer : What is the number of moles of O-atom in 126 amu of `HNO_(3)` ? A. 2 B. `(2)/(N_(A))` C. 6 D. `(6)/(N_(A))`

Para toluidine is treated with `HNO_(2)` at ice cold conditions and then boiled with water. The final product obtained is :

Description : Para toluidine is treated with `HNO_(2)` at ice cold conditions and then boiled with water. The final product obtained is :

Last Answer : Para toluidine is treated with `HNO_(2)` at ice cold conditions and then boiled with water. The final ... acid B. p-cresol C. toluic acid D. phenol

What is the product when `C_(6)H_(5)CH_(2)NH_(2)` reacts with `HNO_(3)`?

Description : What is the product when `C_(6)H_(5)CH_(2)NH_(2)` reacts with `HNO_(3)`?

Last Answer : What is the product when `C_(6)H_(5)CH_(2)NH_(2)` reacts with `HNO_(3)`?

Upon long standing concetrated `HNO_(3)`

Description : Upon long standing concetrated `HNO_(3)`

Last Answer : Upon long standing concetrated `HNO_(3)` A. remains colourless, but gives out NO B. turns yellow brown ... D. remains colourless, but gives `N_(2)O`

iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is :

Description : iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is :

Last Answer : iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is : A. 7 B. 3 C. 1 D. 5

Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because

Description : Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because

Last Answer : Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because A. HCl ... (3)` together give `O_(2)` that oxidises Pt

The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)`

Description : The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)`

Last Answer : The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)` A. ... bond D. react with Na metal producing a brown gas

Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c) `H_(3)PO_(2)` (d) `H_(3)PO_(3)` (e)

Description : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c) `H_(3)PO_(2)` (d) `H_(3)PO_(3)` (e)

Last Answer : Number of acids having central atom in `+3` oxidation state among the following is (a) `HNO_(2)` (b) `HNO_(3)` (c ... (2)S_(2)O_(8)` (k) `H_(2)SO_(4)`

`N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3), HNO_(3), H_(3)PO_(3)`. (a) Among the above compounds, co

Description : `N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3), HNO_(3), H_(3)PO_(3)`. (a) Among the above compounds, co

Last Answer : `N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3 ... `d pi - p pi` bond are y. Given the answer as `x + y`

`HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is :

Description : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is :

Last Answer : `HNO_(3)+P_(4)O_(10) to HPO_(3) + X` in the above reaction the product `X` is : A. `NO_(2)` B. `N_(2)O_(3)` C. `N_(2)O_(4)` D. `N_(2)O_(5)`

Upon long standing concetrated `HNO_(3)`

Description : Upon long standing concetrated `HNO_(3)`

Last Answer : Upon long standing concetrated `HNO_(3)` A. remains colourless, but gives out NO B. turns yellow brown ... D. remains colourless, but gives `N_(2)O`

iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is :

Description : iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is :

Last Answer : iodine rects with connentrated `HNO_(3)` to yield Y along with other products , the oxidation state of iodine in Y , is : A. 7 B. 3 C. 1 D. 5

Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because

Description : Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because

Last Answer : Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HCl ot `HNO_(3)` because A. HCl ... (3)` together give `O_(2)` that oxidises Pt

The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)`

Description : The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)`

Last Answer : The nitrogen containing compound produced in the reaction of `HNO_(3)` with `P_(4)O_(10)` A. ... bond D. react with Na metal producing a brown gas