DDT stands for (A) Diethyl-diphenyl-trichloromethane (B) Dichloro-diphenyl-trichloromethane (C) diphenyl-dichloro-trichloromethane (D) Dichloro-diphenyl-trichloroethane

DDT stands for
(A) Diethyl-diphenyl-trichloromethane
(B) Dichloro-diphenyl-trichloromethane
(C) diphenyl-dichloro-trichloromethane
(D) Dichloro-diphenyl-trichloroethane
by

1 Answer

Answer :

(D) Dichloro-diphenyl-trichloroethane
by

Related questions

Dichloro diphenyl __________ is the full form of DDT (an insecticide).(A) Tetrachloroethane (B) Trichloroethane (C) Tetrachloromethane (D) Trichloromethane

Description : Dichloro diphenyl __________ is the full form of DDT (an insecticide). (A) Tetrachloroethane (B) Trichloroethane (C) Tetrachloromethane (D) Trichloromethane

Last Answer : (B) Trichloroethane

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Description : Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Last Answer : (B) Alkylated diphenyl amine

Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add the mixture to a solution of HCl in water, and filter. (c) dissolve the mixture in benzene and boil off the benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.

Description : Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add ... benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.

Last Answer : add the mixture to a solution of NaOH in water, and filter

Silicone is a polymer of – (1) Tetraalkyl silane (2) Silicon tetrachloride (3) Dialkyl dichloro silane (4) Silane

Description : Silicone is a polymer of – (1) Tetraalkyl silane (2) Silicon tetrachloride (3) Dialkyl dichloro silane (4) Silane

Last Answer : (3) Dialkyl dichloro silane Explanation: In order to manufacture silicones, alkyl-substituted chlorosilanes are used as starting material. Since dimethylsilane contains -OH group at the end of ... increases. However, the hydrolysis of alkyl trichlorosilane gives very complex cross linked polymer.

The Refrigerant 'FREON' is – (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Description : The Refrigerant 'FREON' is – (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Last Answer : (2) Difluoro Dichloro Methane Explanation: Dichlorodifluorornethane (R-12), is a colourless gas, and usually sold under the brand name Freon-12, is a chlorofluorocarbon halornethane (CFC), used as a ... 1994 clue to concerns about damage to the ozone layer. It is soluble in many organic solvents.

Silicone is a polymer of (1) Tetraalkyl silane (2) Silicon tetrachloride (3) Dialkyl dichloro silane (4) Silane

Description : Silicone is a polymer of (1) Tetraalkyl silane (2) Silicon tetrachloride (3) Dialkyl dichloro silane (4) Silane

Last Answer : Dialkyl dichloro silane

The Refrigerant ‘FREON' is (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Description : The Refrigerant ‘FREON' is (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Last Answer : Difluoro Dichloro Methane

Bisphenol A is produced by the condensation of acetone with (A) Formaldehyde (B) Ethyl alcohol (C) Diethyl ether (D) Phenol

Description : Bisphenol A is produced by the condensation of acetone with (A) Formaldehyde (B) Ethyl alcohol (C) Diethyl ether (D) Phenol

Last Answer : (D) Phenol

CONDENSED STRUCTURE OF THE FOLLOWING1. 5,5 – diethyl – 3,3 – dimethyl – 1 - octyne2. 2,4,4,6 – tetraethyl – 3,3 – nondiene3. 1,1,4,4 – tetramethylheptaneIDENTIFY IF ITS ALKANE ALKYNE ALKENE?

Description : CONDENSED STRUCTURE OF THE FOLLOWING1. 5,5 – diethyl – 3,3 – dimethyl – 1 - octyne2. 2,4,4,6 – tetraethyl – 3,3 – nondiene3. 1,1,4,4 – tetramethylheptaneIDENTIFY IF ITS ALKANE ALKYNE ALKENE?

Last Answer : ℤ.

Diethyl ether is used as

Description : Diethyl ether is used as

Last Answer : Diethyl ether is used as A. Anaesthetic B. Solvent C. Refrigerant D. All

Which of the following is not an isomer of diethyl ether?

Description : Which of the following is not an isomer of diethyl ether?

Last Answer : Which of the following is not an isomer of diethyl ether? A. 2- methyl -2- propanol B. 2- Methoxypropane C. 2- Methyl -1- proponal D. Ethoxyethane

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

Assertion: (A) Diethyl ether is used as general anaesthesia Reason (R): Diethyl either produces unconsciousness without effecting lungs

Description : Assertion: (A) Diethyl ether is used as general anaesthesia Reason (R): Diethyl either produces unconsciousness without effecting lungs

Last Answer : Assertion: (A) Diethyl ether is used as general anaesthesia Reason (R): Diethyl either produces unconsciousness ... false D. A is false but R is true

Diethyl ether reacts with cold. HI to give

Description : Diethyl ether reacts with cold. HI to give

Last Answer : Diethyl ether reacts with cold. HI to give A. Ethyl iodide B. Ethyl alcohol C. Both 1 and 2 D. Ethylene

Which of the following does not react with diethyl ether

Description : Which of the following does not react with diethyl ether

Last Answer : Which of the following does not react with diethyl ether A. `C_(2)H_(5)Ona` B. `A1C1_(3)` C. `BF_(3)` D. `HC1`

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

Total number of lone pair of electrons around oxygens in diethyl peroxide `is//are`

Description : Total number of lone pair of electrons around oxygens in diethyl peroxide `is//are`

Last Answer : Total number of lone pair of electrons around oxygens in diethyl peroxide `is//are` A. 2 B. 3 C. 4 D. 0

Following one is formed when a diethyl either is expoed to air for longer period

Description : Following one is formed when a diethyl either is expoed to air for longer period

Last Answer : Following one is formed when a diethyl either is expoed to air for longer period A. Ethyl ... Acetaldehyde C. Ethylene D. Peroxide of diethy ether

The compound which is not isomeric with diethyl ether is :

Description : The compound which is not isomeric with diethyl ether is :

Last Answer : The compound which is not isomeric with diethyl ether is : A. Butanone B. Methyl propyl ether C. 2-methyl propane -2-ol D. Butanol -1

What is the concentration in percent (vv) of a solution containing 50 mL of diethyl ether(C4H10O) in 2.5 L of solution?

Description : What is the concentration in percent (vv) of a solution containing 50 mL of diethyl ether(C4H10O) in 2.5 L of solution?

Last Answer : Need answer

Which type of isomerism is shown by diethyl ether and methyl propyl ether?

Description : Which type of isomerism is shown by diethyl ether and methyl propyl ether?

Last Answer : Metamerism

(a) What effect the branching of an alkane has on its melting point? (L-III) (b) Which of the following has highest boiling point?(L-III) (1) 2-methyl pentane. (2) 2, 3-diethyl butane. (3) 2, 2- dimethyl butane.

Description : (a) What effect the branching of an alkane has on its melting point? (L-III) (b) Which of the following has highest boiling point?(L-III) (1) 2-methyl pentane. (2) 2, 3-diethyl butane. (3) 2, 2- dimethyl butane.

Last Answer : Ans.(a) In general conception, as the branching increases packing of the molecules in the crystals becomes less close and have melting point decreases accordingly. (b) As the branching increases, ... attraction decreases and hence the boiling point decreases. So, 2-methyl pentane has highest B.pt.

Write the metamer of diethyl ether. What is its IUPAC name?

Description : Write the metamer of diethyl ether. What is its IUPAC name?

Last Answer : Ans.1-methoxypropane, CH3OCH2CH2CH3 or 2-methoxypropane,CH3OCH(CH3)2

Diethyl malonate reacts with urea in the presence of sodium ethoxide to form (a) Uric acid (b) Barbituric acid (c) Phenobarbital (d) Barbital

Description : Diethyl malonate reacts with urea in the presence of sodium ethoxide to form (a) Uric acid (b) Barbituric acid (c) Phenobarbital (d) Barbital

Last Answer : Barbituric acid

When ethyl acetoacetate is subjected to ketonic hydrolysis, the ketoneobtained is(a) Dimethyl ketone(b) Methyl ethyl ketone(c) Diethyl ketone(d) Methyl n-propyl ketone

Description : When ethyl acetoacetate is subjected to ketonic hydrolysis, the ketone obtained is (a) Dimethyl ketone (b) Methyl ethyl ketone (c) Diethyl ketone (d) Methyl n-propyl ketone

Last Answer : Diethyl ketone

Ethyl acetate on heating with sodium ethoxide gives (a) Ethyl acetoacetate (b) Sodium acetate (c) Ethyl alcohol (d) Diethyl ether

Description : Ethyl acetate on heating with sodium ethoxide gives (a) Ethyl acetoacetate (b) Sodium acetate (c) Ethyl alcohol (d) Diethyl ether

Last Answer : Ethyl acetoacetate

Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Description : Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Last Answer : Acetamide

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

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

Ethylene reacts with oxygen in the presence of silver catalyst at 300°C to form (a) Diethyl ether (b) Ethylene glycol (c) Ethyl alcoho(d) Ethylene oxidel

Description : Ethylene reacts with oxygen in the presence of silver catalyst at 300°C to form (a) Diethyl ether (b) Ethylene glycol (c) Ethyl alcohol (d) Ethylene oxide

Last Answer : Ethylene oxide

Which of the following functional group series is ranked according to increasing boiling points? (a) diethyl ether, ethane, ethanol, ethanethiol (b) ethane, ethanol, diethyl ether, ethanethiol (c) ethane, diethyl ether, ethanethiol, ethanol (d) diethyl ether, ethane, ethanethiol, ethanol

Description : Which of the following functional group series is ranked according to increasing boiling points? (a) diethyl ether, ethane, ethanol, ethanethiol (b) ethane, ethanol, diethyl ether, ethanethiol (c) ethane, diethyl ether, ethanethiol, ethanol (d) diethyl ether, ethane, ethanethiol, ethanol

Last Answer : ethane, diethyl ether, ethanethiol, ethanol

Which of the following would have the highest boiling point? (a) Dimethyl ether (b) Diethyl ether (c) Ethyl methyl ether (d) Diisopropyl ether

Description : Which of the following would have the highest boiling point? (a) Dimethyl ether (b) Diethyl ether (c) Ethyl methyl ether (d) Diisopropyl ether

Last Answer : Diisopropyl ether

Diethyl ether reacts with excess of hot concentrated HI to form (a) CH3CH2I + CH3CH2OH (b) Only CH3CH2OH (c) CH3CH2OH + CH2=CH2 (d) Only CH3CH2

Description : Diethyl ether reacts with excess of hot concentrated HI to form (a) CH3CH2I + CH3CH2OH (b) Only CH3CH2OH (c) CH3CH2OH + CH2=CH2 (d) Only CH3CH2

Last Answer : Only CH3CH2

Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide

Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide

Last Answer : Ethyl iodide

Diethyl ether reacts with sodium metal to give (a) Ethanol (b) Sodium ethoxide(c) Ethanal(d) Nothing happens

Description : Diethyl ether reacts with sodium metal to give (a) Ethanol (b) Sodium ethoxide (c) Ethanal (d) Nothing happens

Last Answer : Nothing happens

Which of the following statements is false? (a) Diethyl ether has been used as a general anesthetic (b) Ethyl alcohol is present in all alcoholic beverages (c) Methyl alcohol is produced by fermentation of sugars (d) Ethylene glycol is a common antifreeze for automobiles

Description : Which of the following statements is false? (a) Diethyl ether has been used as a general anesthetic (b) Ethyl alcohol is present in all alcoholic beverages (c) Methyl alcohol is produced by fermentation of sugars (d) Ethylene glycol is a common antifreeze for automobiles

Last Answer : Methyl alcohol is produced by fermentation of sugars

Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid

Description : Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid

Last Answer : Diethyl ether

Ethyl bromide reacts with sodium methoxide to form (a) Diethyl ether (b) Ethyl methyl ether (c) Dimethyl ether (d) n-Propyl alcohol

Description : Ethyl bromide reacts with sodium methoxide to form (a) Diethyl ether (b) Ethyl methyl ether (c) Dimethyl ether (d) n-Propyl alcohol

Last Answer : Ethyl methyl ether

Diethyl ether and methyl propyl ether are (a) Conformational isomers (b) Metamers (c) Geometrical isomers (d) Enantiomers

Description : Diethyl ether and methyl propyl ether are (a) Conformational isomers (b) Metamers (c) Geometrical isomers (d) Enantiomers

Last Answer : Metamers

Ethanol is isomeric with (a) Dimethyl ether (b) Ethanal (c) Diethyl ether (d) Propanone

Description : Ethanol is isomeric with (a) Dimethyl ether (b) Ethanal (c) Diethyl ether (d) Propanone

Last Answer : Dimethyl ether

Which of the following is used as an antifreeze? (a) Ethylene glycol (b) Glycerol (c) Diethyl ether (d) Picric acid

Description : Which of the following is used as an antifreeze? (a) Ethylene glycol (b) Glycerol (c) Diethyl ether (d) Picric acid

Last Answer : Ethylene glycol

Ethanol on heating with concentrated H2SO4 at 170°C gives (a) ethylene (b) ethyl hydrogen sulfate (c) diethyl ether (d) diethyl sulfate

Description : Ethanol on heating with concentrated H2SO4 at 170°C gives (a) ethylene (b) ethyl hydrogen sulfate (c) diethyl ether (d) diethyl sulfate

Last Answer : ethylene

Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these

Description : Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these

Last Answer : All of these

Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol

Description : Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol

Last Answer : n-Butyl alcohol

Which of the following compounds does not dissolve in concentrated H2SO4 on warming? (a) n-Hexane (b) Diethyl ether (c) 1-Butene (d) Aniline

Description : Which of the following compounds does not dissolve in concentrated H2SO4 on warming? (a) n-Hexane (b) Diethyl ether (c) 1-Butene (d) Aniline

Last Answer : n-Hexane

Which of the following compounds have planar molecules? (a) ethyl alcohol (b) formaldehyde (c) diethyl ether (d) 1,3-butadiene

Description : Which of the following compounds have planar molecules? (a) ethyl alcohol (b) formaldehyde (c) diethyl ether (d) 1,3-butadiene

Last Answer : 1,3-butadiene formaldehyde

Chemical nomenclature of procaine is (A) 2-Diethylaminoethyl 4-aminobenzoate (B) N,N-Diethyl 4-aminobenzoate (C) 4-Aminobenzamidoethyl amine (D) 4-Amino-2-diethylaminoethyl benzoate

Description : Chemical nomenclature of procaine is (A) 2-Diethylaminoethyl 4-aminobenzoate (B) N,N-Diethyl 4-aminobenzoate (C) 4-Aminobenzamidoethyl amine (D) 4-Amino-2-diethylaminoethyl benzoate

Last Answer : Ans. A & D

The drug of choice for tropical eosinophilia is: A. Carbamazepine B. Diethyl carbamazine citrate C. Carbetapentane D. Clomiphene citrate

Description : The drug of choice for tropical eosinophilia is: A. Carbamazepine B. Diethyl carbamazine citrate C. Carbetapentane D. Clomiphene citrate

Last Answer : B. Diethyl carbamazine citrate

Diethyl carbamazine citrate has the following action in filariasis: A. Rapidly kills adult filarial worms and stops production of microfilariae B. Kills circulating microfilariae C. Kills microfilariae present in nodules and serous fluids D. Promotes phagocytosis of circulating microfilariae

Description : Diethyl carbamazine citrate has the following action in filariasis: A. Rapidly kills adult filarial worms and stops production of microfilariae B. Kills circulating microfilariae C. Kills microfilariae present in nodules and serous fluids D. Promotes phagocytosis of circulating microfilariae

Last Answer : D. Promotes phagocytosis of circulating microfilaria

Drug/drugs effective in filariasis include: A. Ivermectin B. Albendazole C. Diethyl carbamazine citrate D. All of the above

Description : Drug/drugs effective in filariasis include: A. Ivermectin B. Albendazole C. Diethyl carbamazine citrate D. All of the above

Last Answer : D. All of the above