Description : Which of the following metal (s) produce(s) `N_2O` gas on reaction with 20% `HNO_3`
Last Answer : Which of the following metal (s) produce(s) `N_2O` gas on reaction with 20% `HNO_3` A. Fe B. Sn C. Cu D. Zn
Description : Which of the following is a mixed acid anhydride ?
Last Answer : Which of the following is a mixed acid anhydride ? A. NO B. `NO_(2)` C. `N_(2)O_(5)` D. `N_(2)O`
Description : WHAT ISBASIC ANHYDRIDE OF KOH?
Last Answer : ko
Description : P and Q are isomer of dicraboxylic acid `C_(4)H_(4)O_(4)` Both decolourixe `Br_(2)//H_(2)O`. On heating , P forms the cyclic anhydride. Upon treatment
Last Answer : P and Q are isomer of dicraboxylic acid `C_(4)H_(4)O_(4)` Both decolourixe `Br_(2)//H_(2)O`. On ... sequences V and W are respectively A. B. C. D.
Description : `P` and `Q` are isomers of dicarboxylic acid `C_(4)H_(4)O_(4)`. Bothdecolorize `Br_(2)//H_(2)O`. On heating, `P` forms the cyclic anhydride. Upon trea
Last Answer : `P` and `Q` are isomers of dicarboxylic acid `C_(4)H_(4)O_(4)`. Bothdecolorize `Br_(2)// ... . Optically inactive pair (T, U) and optically inactive S
Description : Acetic anhydride is prepared in the laboratory by heating sodium acetate with
Last Answer : Acetic anhydride is prepared in the laboratory by heating sodium acetate with A. ethyl chloride B. acetyl chloride C. Conc. `H_(2)SO_(4)` D. zinc dust
Description : A compound with molecular formula `C_(6)H_(10)O_(4)` on acylation with acetic anhydride gives a compound with molecular formula `C_(12)H_(18)O_(8)`. H
Last Answer : A compound with molecular formula `C_(6)H_(10)O_(4)` on acylation with acetic anhydride gives a compound with ... ? A. one B. two C. three D. four
Description : The anhydride of nitric acid is
Last Answer : The anhydride of nitric acid is A. nitric oxide B. nitrous oxide C. dinitrogen trioxide D. dinitrogen pentoxide
Description : Bleaching powder contains a salt of an oxoacid as one of its components . The anhydride of that acid is
Last Answer : Bleaching powder contains a salt of an oxoacid as one of its components . The anhydride of that acid is A. ... ` B. `Cl_2O_7` C. `ClO_2` D. `Cl_2O_6`
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
Description : Clear organe solution of chromic anhydride in aqueous sulpuric acid turn blue-green on reaction with
Last Answer : Clear organe solution of chromic anhydride in aqueous sulpuric acid turn blue-green on reaction with A. ... 2-Methyl-2-propanol D. 2-Methyl-2-butanol
Description : Sulphurous anhydride is
Last Answer : Sulphurous anhydride is A. `SO_(3)` B. `SO_(4)^(-2)` C. `SO_(3)^(2-)` D. `SO_(2)`
Description : Chyluria can be detected by addition of the following to the urine: (A) Sulphosalicylic acid(B) Nitric acid (C) Acetic anhydride (D) Chloroform
Last Answer : Answer : D
Description : What is the Anhydride of N2O5 ?
Last Answer : Nitric acid
Description : Acid and alcohol react to form (a) Aldehyde and water (b) Ketone and water (c) Acid anhydride and water (d) Ester and water
Last Answer : Ans:(d)
Description : Nylon-66 is manufactured from (A) Adipic acid and Hexamethylene diamine (B) Caprolactam (C) Maleic anhydride and Hexamethylene diamine (D) Dimethyl terephthalate (DMT) and ethylene glycol
Last Answer : (A) Adipic acid and Hexamethylene diamine
Description : Phthalic anhydride is used (A) In making PVC (B) As plasticisers (C) In insecticides manufacture (D) For making nylon-6
Last Answer : (B) As plasticisers
Description : Starting material for the production of butadiene in India is (A) Naphthalene (B) Benzol (C) Ethyl alcohol (D) Phthalic anhydride
Last Answer : (C) Ethyl alcohol
Description : Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used (A) For surface coating of automobiles & air crafts (B) For fibre making (C) As plasticiser for PVC & nitrocellulose (D) For film forming materials
Last Answer : (B) For fibre making
Description : __________ are produced by reacting polybasic acid (e.g. Phthalic anhydride) with polyhydric alcohol (e.g., glycerol). (A) Unsaturated polyester (B) Alkyd resins (C) Saturated polyester (D) Amino resins
Last Answer : (B) Alkyd resins
Description : Nylon-6 is manufactured from (A) Caprolactam (B) Adipic acid and Hexamethylenediamine (C) Maleic anhydride and Hexamethylenediamine (D) Sebacic acid and Hexamethylenediamine
Last Answer : (A) Caprolactam
Description : Molten phthalic anhydride is stored in a/an __________ vessel. (A) Aluminium (B) Nickel clad steel (C) Lead lined steel (D) Glass lined steel
Last Answer : (A) Aluminium
Description : When a mixture of salicylic acid, acetic anhydride and acetic acid is refluxed, what is the product obtained and what is its use in everyday life ?
Last Answer : Ans. Aspirin used as analgesic.
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
Description : Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at 180°C to give : (a) Mandelic acid (b) Cinnamic acid (c) Malonic acid (d) Benzoic acid
Last Answer : Cinnamic acid
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
Description : Which of the following reagents does not react with aniline? (a) Acetyl chloride (b) Acetic anhydride (c) Ammonia (d) Nitrous acid
Last Answer : Ammonia
Description : Aniline reacts with acetic anhydride to give : (a) N-Methylaniline (b) p-Aminoacetophenone (c) Acetanilide (d) m-Aminoacetophenone
Last Answer : Acetanilide
Description : Benzene reacts with acetic anhydride in the presence of AlCl3 to form (a) Acetophenone (b) Benzophenone (c) Phenylacetic acid (d) Phenyl acetate
Last Answer : Acetophenone
Description : The preferred reacting system for oxidation of o-xylene to phthalic anhydride is (A) Jacketed liquid phase CSTR (B) Jacketed steam heated multitubular reactor (C) Multitubular reactor with cooling (D) Multistage multitubular reactor with interstage cooling
Last Answer : (A) Jacketed liquid phase CSTR
Description : Acetic anhydride reacts with ethanal to give (a) Methyl acetate (b) Methyl propanoate (c) Ethyl acetate (d) Ethyl propanoate
Last Answer : Ethyl acetate
Description : Acetic anhydride is obtained by the reaction of : (a) Acetic acid and sodium (b) Acetic acid and water (c) Acetic acid and diethyl ether (d) Acetic acid and P2O5
Last Answer : Acetic acid and P2O5
Description : A compound undergoes reduction with LiAlH4. It also dissolves in aqueous NaOH from which it can be recovered by addition of HCl. The compound is (a) a carboxylic acid (b) an ester (c) an acid anhydride (d) an alcohol
Last Answer : a carboxylic acid
Description : Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid. (A) Phthalic anhydride (B) Vinyl chloride (C) Maleic anhydride (D) Dacron
Last Answer : (B) Vinyl chloride
Description : Phthalic anhydride is made by the (A) Oxidation of naphthalene (B) Oxidation of benzene (C) Dehydrogenation of ethyl benzene (D) None of these
Last Answer : (A) Oxidation of naphthalene
Description : Phthalic anhydride is produced by the oxidation of (A) Naphthalene (B) Benzene (C) Toluene (D) Aniline
Last Answer : (B) Benzene
Description : Catalytic oxidation-dehydrogenation of methyl alcohol produces (A) Formaldehyde (B) Phenol (C) Acetone (D) Maleic anhydride
Last Answer : (A) Formaldehyde
Description : Starting raw material for the manufacture of Maleic anhydride is (A) n-butene (B) Benzene (C) Either (A) or (B) (D) Neither (A) nor (B)
Last Answer : (C) Either (A) or (B)
Description : Nylon-66 is manufactured from (A) Hexamethylene diamine and adipic acid (B) Hexamethylene diamine and Maleic anhydride (C) Caprolactam (D) Dimethyl terephthalate and ethylene glycol
Last Answer : (A) Hexamethylene diamine and adipic acid
Description : Catalytic oxidation of naphthalene produces (A) Styrene (B) Phenol (C) Phthalic anhydride (D) None of these
Last Answer : (C) Phthalic anhydride
Description : Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. (A) Nickel (B) Vanadium (C) Alumina (D) Iron
Last Answer : (B) Vanadium
Description : Catalyst used in the oxidation of benzene to produce Maleic anhydride is (A) V2O5 (B) Pt (C) Ni (D) Cr
Last Answer : (A) V2O5
Description : Nylon-6 is manufactured from (A) Caprolactam (B) Hexamethylene diamine and adipic acid (C) Hexamethylene diamine and Maleic anhydride (D) Hexamethylene diamine and Sebacic acid
Description : Manufacture of phthalic anhydride uses __________ as a catalyst. (A) Ni (B) Cr (C) V2O5 (D) Al2O3
Last Answer : (C) V2O5