What are the chemical signals of phenol ?

What are the chemical signals of phenol ?
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Answer :

Fennel signal C6H5-OH ...
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Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by (A) Chlorination (B) Treating in biological oxygen pond (C) Chemical coagulation (D) None of these

Description : Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by (A) Chlorination (B) Treating in biological oxygen pond (C) Chemical coagulation (D) None of these

Last Answer : (B) Treating in biological oxygen pond

If a chemical has a phenol coefficient (PC) of 63, it means the chemical a. ‗Is Better Than One With A PC Of 22., b. Will Kill 63P/O Of Bacteria. c. Kills Microbes At 63°C.d. Will Kill All Bacteria In 63 Minutes.

Description : If a chemical has a phenol coefficient (PC) of 63, it means the chemical a. ‗Is Better Than One With A PC Of 22., b. Will Kill 63P/O Of Bacteria. c. Kills Microbes At 63°C. d. Will Kill All Bacteria In 63 Minutes.

Last Answer : a. ‗Is Better Than One With A PC Of 22.,

What are the chemical signals of rice ?

Description : What are the chemical signals of rice ?

Last Answer : Answer : The chemical signal of rice is: C6H10O5

What is cypermethrin , what are its chemical signals ?

Description : What is cypermethrin , what are its chemical signals ?

Last Answer : Cypermethrin is an effective pesticide , its chemical symbol C22 H19 Cl2 NO3 ...

What are the chemical signals of TNT ?

Description : What are the chemical signals of TNT ?

Last Answer : Answer : Chemical signals of TNT : C7 H5 N3 O6

What are the chemical signals of cement ?

Description : What are the chemical signals of cement ?

Last Answer : Ca0 SiO2 Al2O3 Fe2O3 H2O SO3 --- Cement

What are the chemical signals of calcium carbonate ?

Description : What are the chemical signals of calcium carbonate ?

Last Answer : Chemical signals of calcium carbonate - CaCO 3

What are the chemical signals of fire ?

Description : What are the chemical signals of fire ?

Last Answer : Fire is the energy emitted when it is attached to an element of oxygen. It is just a combustion of oxygen so the oxygen signal can also be called a fire signal. But fire is not a chemical substance , it is the energy emitted from a chemical substance. And there is no chemical signal of energy.

What are the chemical signals ?

Description : What are the chemical signals ?

Last Answer : Chemical signals are the means of expressing the proportional information of specific molecules for the formation of a chemical compound , which is expressed by symbols , numbers and other ... expressed by chemical signals , chemical structural signals and chemical signals are not completely one.

What are the chemical signals of mulberry ?

Description : What are the chemical signals of mulberry ?

Last Answer : : Chemical signal of mulberry CuSO4, 5H2O .

What are the chemical signals of alum ?

Description : What are the chemical signals of alum ?

Last Answer : The chemical name of alum is potash. The chemical signal of K2SO4.Al2 (SO4) 3 .24H2O.

What are the chemical signals of glycerin ?

Description : What are the chemical signals of glycerin ?

Last Answer : CH2-OH -CH-OH -CH2-OH

What are the chemical signals of bleaching ?

Description : What are the chemical signals of bleaching ?

Last Answer : : Chemical signals of bleaching Ca (OCl) Cl

What are the chemical signals of bauxite ?

Description : What are the chemical signals of bauxite ?

Last Answer : : Chemical signal of bauxite Al2O3.2H2O

What are the chemical signals of limonite ?

Description : What are the chemical signals of limonite ?

Last Answer : : Chemical signal of limonite Fe2O3 .3H2O

What are the chemical signals of oil or fat ?

Description : What are the chemical signals of oil or fat ?

Last Answer : CH2-OOCR - CH-OOCR -CH2-OOCR

What are the chemical signals of soap ?

Description : What are the chemical signals of soap ?

Last Answer : The chemical signal of soap is 8 C17H35COONa

Which is Known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid

Description : Which is Known as carbolic acid? (1) Phenol (2) Ethanol (3) Acetic acid (4) Oxalic acid

Last Answer : (1) Phenol Explanation: Phenol is also known as carbolic acid. It is an aromatic organic compound with the molecular formula C6H5OH. Phenol and its chemical derivatives are essential ... epoxies, Bakelite, nylon, detergents, herbicides such as phenoxy herbicides, and numerous pharmaceutical drugs.

Which one of the following can be oxidized to the corresponding carbonyl compound - (1) O-Nitrophenol (2) Phenol (3) 2-methyl-2-hydroxy propane (4) 2-hydroxy propane

Description : Which one of the following can be oxidized to the corresponding carbonyl compound - (1) O-Nitrophenol (2) Phenol (3) 2-methyl-2-hydroxy propane (4) 2-hydroxy propane

Last Answer : (4) 2-hydroxy propane

Bakelite is a copolymer of Phenol and - (1) Formaldehyde (2) Acetaldehyde (3) Benzaldehyde (4) Cinnaldehyde

Description : Bakelite is a copolymer of Phenol and - (1) Formaldehyde (2) Acetaldehyde (3) Benzaldehyde (4) Cinnaldehyde

Last Answer : (1) Formaldehyde Explanation: Bakelite is an early plastic. It is a thermosetting phenol formaldehyde resin, formed from an elimination reaction of phenol with formaldehyde.

Which of the following is used to denature ethanol? (1) Methyl alcohol (2) Propyl alcohol (3) Phenol (4) Methane

Description : Which of the following is used to denature ethanol? (1) Methyl alcohol (2) Propyl alcohol (3) Phenol (4) Methane

Last Answer : (1) Methyl alcohol Explanation: Denatured alcohol is ethanol that has additives to make it undrinkable (poisonous), to discourage recreational consumption. Different additives are used to make it difficult. to ... both because its boiling point is close to that of ethanol and because it is toxic.

Saccharin is made up of – (1) Toluene (2) Phenol (3) Propane (4) Butane

Description : Saccharin is made up of – (1) Toluene (2) Phenol (3) Propane (4) Butane

Last Answer : (1) Toluene Explanation: Saccharin can be produced in various ways. The original route by Remsen & Fahlberg starts with toluene. Saccharin ism artificial sweetener. The basic substance, benzoic sulfiloine ... It is used to sweeten products such as drinks, candies, cookies, medicines, and toothpaste.

'Red Ink' is prepared from - (1) Phenol (2) Aniline (3) Congo redd (4) Eosin

Description : 'Red Ink' is prepared from - (1) Phenol (2) Aniline (3) Congo redd (4) Eosin

Last Answer : (4) Eosin Explanation: Eosin is a dye used to prepare red ink. Eosin Y is a xanthene dye and is used for the differential staining of connective tissue and cytoplasm.

Pick the odd one amongst the following on the basis of their medicinal properties mentioning the reason. (i) Luminal, seconal, phenacetin, equanil (ii) Chloroxylenol, phenol, chlorampherical, bithional

Description : Pick the odd one amongst the following on the basis of their medicinal properties mentioning the reason. (i) Luminal, seconal, phenacetin, equanil (ii) Chloroxylenol, phenol, chlorampherical, bithional

Last Answer : Ans. (i) Phenacetin is an antipyretic while all the rest are tranquilisers. (ii) Chlorampherical is an antibiotic while all the remaining are antiseptics.

Write the polymer of phenol and formaldehyde that is used for making combs.

Description : Write the polymer of phenol and formaldehyde that is used for making combs.

Last Answer : Ans: Bakelite, (a) Phenol (b) Formaldehyde 

What makes acetic acid a stronger acid than phenol ?

Description : What makes acetic acid a stronger acid than phenol ?

Last Answer : Ans. Greater resonance stabilization of acetate ion over phenoxide ion. 

Why phenol is acidic ?

Description : Why phenol is acidic ?

Last Answer :  Ans: In phenol dissociation takes place as follows.   The conjugate base of phenol ie. Phenoxide ion is resonance stabilized. This is why the negative charge on oxygen atom is ... ion has less tendency to form undissociated phenol molecule and equilibrium lies towards right direction.  

Phenol has smaller dipole moment than methanol. (OR) Why are dipole moments of phenols smaller than dipole moments of alcohols ?

Description : Phenol has smaller dipole moment than methanol. (OR) Why are dipole moments of phenols smaller than dipole moments of alcohols ?

Last Answer : Due to electron-withdrawing effect of the benzene ring, the C — O bond in phenol is less polar but in case of methanol due to electron-donating effect of — CH3 group, C — O bond is more polar.

Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde(d) Phenol

Description : Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde (d) Phenol

Last Answer : Isoprene

Bakelite is obtained from : (a) Phenol and formaldehyde (b) Adipic acid and hexamethylene diamine (c) Dimethyl terephthalate and ethylene glycol (d) Neoprene

Description : Bakelite is obtained from : (a) Phenol and formaldehyde (b) Adipic acid and hexamethylene diamine (c) Dimethyl terephthalate and ethylene glycol (d) Neoprene

Last Answer : Phenol and formaldehyde

Which of the following is the strongest acid? (a) Ethanol (b) Phenol (c) Anisole (d) Benzoic acid

Description : Which of the following is the strongest acid? (a) Ethanol (b) Phenol (c) Anisole (d) Benzoic acid

Last Answer : Benzoic acid

Which of the following is the strongest acid? (a) Trichloroacetic acid (b) Phenol (c) Acetic acid (d) Benzoic acid

Description : Which of the following is the strongest acid? (a) Trichloroacetic acid (b) Phenol (c) Acetic acid (d) Benzoic acid

Last Answer : Trichloroacetic acid

Aspirin is produced by heating salicylic acid with (a) acetic anhydride in the presence of phosphoric acid (b) benzoic anhydride in the presence of phosphoric acid (c) methyl alcohol in the presence of sulfuric acid (d) phenol in the presence of sulfuric acid

Description : Aspirin is produced by heating salicylic acid with (a) acetic anhydride in the presence of phosphoric acid (b) benzoic anhydride in the presence of phosphoric acid (c) methyl alcohol in the presence of sulfuric acid (d) phenol in the presence of sulfuric acid

Last Answer : acetic anhydride in the presence of phosphoric acid

Which of the following esters produces butyric acid and phenol on hydrolysis? (a) Phenyl butyrate (b) Butyl benzoate (c) Benzyl propionate (d) Phenyl propionate

Description : Which of the following esters produces butyric acid and phenol on hydrolysis? (a) Phenyl butyrate (b) Butyl benzoate (c) Benzyl propionate (d) Phenyl propionate

Last Answer : Phenyl butyrate

Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH

Description : Which of the following reactions does not produce benzene as one of the products? (a) Treating benzenediazonium chloride with H3PO2 (b) Distilling phenol with zinc dust (c) Fusing sodium benzoate with NaOH (d) Fusing sodium benzenesulfonate with NaOH

Last Answer : Fusing sodium benzenesulfonate with NaOH

Phenylmagnesium bromide reacts with CO2 followed by acid-hydrolysis to form : (a) Phenol (b) Benzoic acid (c) Bromobenzene (d) Acetophenone

Description : Phenylmagnesium bromide reacts with CO2 followed by acid-hydrolysis to form : (a) Phenol (b) Benzoic acid (c) Bromobenzene (d) Acetophenone

Last Answer : Benzoic acid

Which of the following compounds is most acidic? (a) Phenol (b) m-Nitrophenol (c) m-Cresol (d) m-Bromophenol

Description : Which of the following compounds is most acidic? (a) Phenol (b) m-Nitrophenol (c) m-Cresol (d) m-Bromophenol

Last Answer : m-Nitrophenol

Which one is most acidic? (a) Hexanol (b) Phenol (c) Water (d) Diisopropyl ether

Description : Which one is most acidic? (a) Hexanol (b) Phenol (c) Water (d) Diisopropyl ether

Last Answer : Phenol

Which of the following compounds is most acidic? (a) Water (b) Cyclohexanol (c) Ethanol (d) Phenol

Description : Which of the following compounds is most acidic? (a) Water (b) Cyclohexanol (c) Ethanol (d) Phenol

Last Answer : Phenol

Which of the following compounds is most acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Description : Which of the following compounds is most acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Last Answer : Formic acid

Which of the following compounds is least acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Description : Which of the following compounds is least acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol

Last Answer : Ethanol

Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid

Description : Which of the following compounds is least acidic? (a) HCl (b) Phenol (c) Acetylene (d) Picric acid

Last Answer : Acetylene

Phenol is (a) stronger acid than acetic acid (b) weaker acid than acetic acid (c) stronger base than methylamine (d) weaker base than methylamine

Description : Phenol is (a) stronger acid than acetic acid (b) weaker acid than acetic acid (c) stronger base than methylamine (d) weaker base than methylamine

Last Answer : weaker acid than acetic acid

Which of the following has the most acidic proton? (a) Thiol (b) Alcohol (c) Phenol (d) Ether

Description : Which of the following has the most acidic proton? (a) Thiol (b) Alcohol (c) Phenol (d) Ether

Last Answer : Phenol

Phenol is acidic because of (a) Resonance (b) Electromeric effect (c) Inductive effect (d) Peroxide effect

Description : Phenol is acidic because of (a) Resonance (b) Electromeric effect (c) Inductive effect (d) Peroxide effect

Last Answer : Resonance

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

Anisole is formed when phenol is treated with (a) CH3I/NaOH (b) CH3CH2I/NaOH (c) CHCl3/NaOH (d) Acetic anhydride

Description : Anisole is formed when phenol is treated with (a) CH3I/NaOH (b) CH3CH2I/NaOH (c) CHCl3/NaOH (d) Acetic anhydride

Last Answer : CH3I/NaOH

Bakelite has the following characteristics (a) A polymer made from phenol and formaldehyde (b) A thermosetting plastic (c) Can be used as an adhesive(d) All of the above

Description : Bakelite has the following characteristics (a) A polymer made from phenol and formaldehyde (b) A thermosetting plastic (c) Can be used as an adhesive (d) All of the above

Last Answer : All of the above

Phenol reacts with excess bromine water to give (a) o- plus p-Bromophenol (b) Bromobenzene (c) 2,4,6-Tribromophenol (d) m-Bromophenol

Description : Phenol reacts with excess bromine water to give (a) o- plus p-Bromophenol (b) Bromobenzene (c) 2,4,6-Tribromophenol (d) m-Bromophenol

Last Answer : 2,4,6-Tribromophenol

Which of the following compounds will react with PCl5 least vigorously? (a) Ethanol (b) Acetic acid (c) Phenol (d) Benzoic acid

Description : Which of the following compounds will react with PCl5 least vigorously? (a) Ethanol (b) Acetic acid (c) Phenol (d) Benzoic acid

Last Answer : Phenol