Synthetic detergents are made from (1) Sodium stearate (2) Sodium salt of benzene sulphonic acid (3) Sodium salt of benzene carboxylic acid (4) Sodium palmitate

Synthetic detergents are made from (1) Sodium stearate (2) Sodium salt of benzene sulphonic acid (3) Sodium salt of benzene carboxylic acid (4) Sodium palmitate
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Sodium salt of benzene sulphonic acid
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Synthetic detergents are made from – (1) Sodium stearate (2) Sodium salt of benzene sulphonic acid (3) Sodium salt of benzene carboxylic acid (4) Sodium palmitate

Description : Synthetic detergents are made from – (1) Sodium stearate (2) Sodium salt of benzene sulphonic acid (3) Sodium salt of benzene carboxylic acid (4) Sodium palmitate

Last Answer : (2) Sodium salt of benzene sulphonic acid Explanation: Synthetic detergents are made from sodium salt of benezene sulphonic acid.

Detergents are – (1) Sodium salts of fatty acids (2) Sodium salts of sulphonic acids (3) Sodium salt of benzoic acid (4) None of the above

Description : Detergents are – (1) Sodium salts of fatty acids (2) Sodium salts of sulphonic acids (3) Sodium salt of benzoic acid (4) None of the above

Last Answer : (2) Sodium salts of sulphonic acids Explanation: A detergent is a surfactant or a mixture of surfactants with "cleaning properties in dilute solutiops." These substances are usually alkylbenzenesulfonates, a ... detergent or dish detergent, as opposed to hand soap or other types of cleaning agents.

Detergents are (1) Sodium salts of fatty acids (2) Sodium salts of sulphonic acids (3) Sodium salt of benzoic acid (4) None of the above

Description : Detergents are (1) Sodium salts of fatty acids (2) Sodium salts of sulphonic acids (3) Sodium salt of benzoic acid (4) None of the above

Last Answer : Sodium salts of sulphonic acids

Synthetic detergents are prepared from (1) potassium salts of higher fatty-acids (2) sodium salts of higher fat acids (3) hydrocarbons of petroleum (4) glycerides

Description : Synthetic detergents are prepared from (1) potassium salts of higher fatty-acids (2) sodium salts of higher fat acids (3) hydrocarbons of petroleum (4) glycerides

Last Answer : (3) hydrocarbons of petroleum Explanation: Synthetic detergents are prepared from hydrocarbons of petroleum. They are sodium salts of long chain benzene sulphonic acids or sodium salts of long chain ... are soluble in water. Therefore cleansing action of detergents remains unaffected in hard water.

Synthetic detergents are prepared from (1) potassium salts of higher fatty-acids (2) sodium salts of higher fattyacids (3) hydrocarbons of petroleum (4) glycerides

Description : Synthetic detergents are prepared from (1) potassium salts of higher fatty-acids (2) sodium salts of higher fattyacids (3) hydrocarbons of petroleum (4) glycerides

Last Answer : hydrocarbons of petroleum

Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A

Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A

Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol ... P-toluedine (7) Picric acid (8) Squaric acid

When benzene sulphonic acid and P-nitrophenol are treated with `NaHCO_3`, the gases released, respectively, are :

Description : When benzene sulphonic acid and P-nitrophenol are treated with `NaHCO_3`, the gases released, respectively, are :

Last Answer : When benzene sulphonic acid and P-nitrophenol are treated with `NaHCO_3`, the gases released, respectively, are : A. ` ... CO_(2)` D. `CO_(2), CO_(2)`

(3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic a big drawback of washing with soap is that the minerals in water react with those in soap, leaving an insoluble film. Detergents react less to minerals in water and for all practical purposes are the product of choice for laundry, unless you have very soft water. On the other hand, soap will combine with the magnesium and calcium ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Description : (3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic a big drawback of washing with soap is that the minerals in water ... ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Last Answer : What is the objective of the 'Kyoto Protocol'? (1) To abolish child labour (2) To eliminate nuclear weapons (3) To increase ground water levels (4) To reduce greenhouse gases

(3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic. a big drawback of washing with soap is that the minerals in water react with those in soap, leaving an insoluble film. Detergents react less to minerals in water and for all practical purposes are the product of choice for laundry, unless you have very soft water. On the other hand, soap will combine with the magnesium and calcium ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Description : (3) Detergents give lather even with hard water Explanation: Soaps are made of materials found in nature. Detergents are synthetic. a big drawback of washing with soap is that the minerals in water ... ions in hard water to create an insoluble residue that can clog drains and stick to clothing.

Last Answer : Cement is usually a mixture of – (1) Calcium silicate and calcium alurninate (2) Calcium silicate and calcium ferrate (3) Calcium aluminate and calcium ferrate (4) Lime stone and silicon dioxide

What is the sign of Sodium Stearate ?

Description : What is the sign of Sodium Stearate ?

Last Answer : : The signal for sodium stearate is C17 H35 COONa.

Give reasons for the following observations: (a) The element carbon forms a very large number of compounds. (b) Air holes of a gas burner have to be adjusted when the heated vessels get blackened by the flame. (c) Use of synthetic detergents causes pollution of water. -Chemistry

Description : Give reasons for the following observations: (a) The element carbon forms a very large number of compounds. (b) Air holes of a gas burner have to be adjusted when the heated vessels get blackened by the flame. (c) Use of synthetic detergents causes pollution of water. -Chemistry

Last Answer : Answer. (a) Carbon forms large number of compounds since carbon is small in size and can form stable covalent bonds (catenation) and it shows tetravalency. (b) Air holes of gas burner are ... not get blackened. (c) Some synthetic detergents are non-biodegradable, therefore, cause pollution of water.

Synthetic detergents can be represented by the following general formula (a) RONa (b) ROSO3Na (c) RCOONa (d) RCOOH

Description : Synthetic detergents can be represented by the following general formula (a) RONa (b) ROSO3Na (c) RCOONa (d) RCOOH

Last Answer : ROSO3Na

Which reaction does not yield an ester as one of the products?(a) A carboxylic acid is heated with an alcohol (b) A Grignard reagent is added to a carboxylic acid (c) An acid halide is treated with an alcohol (d) An alkyl halide is heated with the salt of a carboxylic acid

Description : Which reaction does not yield an ester as one of the products? (a) A carboxylic acid is heated with an alcohol (b) A Grignard reagent is added to a carboxylic acid (c) An acid halide is treated with an alcohol (d) An alkyl halide is heated with the salt of a carboxylic acid

Last Answer : A Grignard reagent is added to a carboxylic acid

__________ is the most suitable lubricant for drawing mild steel wires? (A) Kerosene (B) Water (C) Sodium stearate (D) Lime water

Description : __________ is the most suitable lubricant for drawing mild steel wires? (A) Kerosene (B) Water (C) Sodium stearate (D) Lime water

Last Answer : (C) Sodium stearate

Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes (A) Fire hazards (B) Explosion hazards (C) Persistent foam (D) Depletion of dissolved oxygen

Description : Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes (A) Fire hazards (B) Explosion hazards (C) Persistent foam (D) Depletion of dissolved oxygen

Last Answer : (C) Persistent foam

Mixture of sodium salts of aromatic and sulphonic adds is?

Description : Mixture of sodium salts of aromatic and sulphonic adds is?

Last Answer : Detergents

The compound used in prickly-heat powder to prevent excessive sweating is – (1) Boric acid (2) Phosphoric acid (3) Carbonic acid (4) Sulphonic acid

Description : The compound used in prickly-heat powder to prevent excessive sweating is – (1) Boric acid (2) Phosphoric acid (3) Carbonic acid (4) Sulphonic acid

Last Answer : (1) Boric acid Explanation: Boric acid (H3BO3), also called hydrogen borate, boracie acid, orthoboric acid and acidum boricum, is used in prickly heat powders to prevent excessive sweating. Boric ... dressings or salves. As an antibacterial compound, boric acid can also be used for acne treatment.

The compound used in pricklyheat powder to prevent excessive sweating is (1) Boric acid (2) Phosphoric acid (3) Carbonic acid (4) Sulphonic acid

Description : The compound used in pricklyheat powder to prevent excessive sweating is (1) Boric acid (2) Phosphoric acid (3) Carbonic acid (4) Sulphonic acid

Last Answer : Boric acid

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement? (A) Xanthates (B) Stearic acid (C) Calcium & aluminium stearate (D) Formic acid

Description : Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement? (A) Xanthates (B) Stearic acid (C) Calcium & aluminium stearate (D) Formic acid

Last Answer : (C) Calcium & aluminium stearate

Long chain acyl CoA penetrates mitochondria in the presence of (A) Palmitate (B) Carnitine (C) Sorbitol (D) DNP

Description : Long chain acyl CoA penetrates mitochondria in the presence of (A) Palmitate (B) Carnitine (C) Sorbitol (D) DNP

Last Answer : Answer : B

What is the sign of calcium stearate ?

Description : What is the sign of calcium stearate ?

Last Answer : Its signal is ( R-COO) 2Ca

Esters and amides are most easily made by nucleophilic acyl substitution reactions on : (a) acid anhydrides (b) carboxylates (c) carboxylic acids (d) acid chlorides

Description : Esters and amides are most easily made by nucleophilic acyl substitution reactions on : (a) acid anhydrides (b) carboxylates (c) carboxylic acids (d) acid chlorides

Last Answer : acid chlorides

The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water is

Description : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water is

Last Answer : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water ... sulphonic acid D. 2,4,6-tribromophenol

Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. Reason : Sulphonation of phenol is a reversible pr

Description : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. Reason : Sulphonation of phenol is a reversible pr

Last Answer : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. ... in correct D. A is incorrect but R is correct

In place of glucuronic acid chondroitin sulphate B contains (A) Gluconic acid (B) Gulonic acid (C) Induronic acid (D) Sulphonic acid

Description : In place of glucuronic acid chondroitin sulphate B contains (A) Gluconic acid (B) Gulonic acid (C) Induronic acid (D) Sulphonic acid

Last Answer : C

Sodium carbonate (soda ash) is not used in the manufacture of (A) Fire extinguishers (B) Sugar (C) Baking powder (D) Detergents

Description : Sodium carbonate (soda ash) is not used in the manufacture of (A) Fire extinguishers (B) Sugar (C) Baking powder (D) Detergents

Last Answer : (D) Detergents

Pick out the wrong statement. (A) Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action (B) Soap powder is prepared by mixing soap with hydrated sodium carbonate (C) Detergents differ from soaps in their action in hard water (D) Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

Description : Pick out the wrong statement. (A) Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action (B) Soap powder is ... ., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

Last Answer : (D) Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda

Description : Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda

Last Answer : (B) Sodium borate

Why does solubility decreases with increasing molecular mass in carboxylic acid ?

Description : Why does solubility decreases with increasing molecular mass in carboxylic acid ?

Last Answer : Ans. Because of increase in alkyl chain length which is hydrophobic in nature. 

During preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, water or the ester formed should be removed as soon as it is formed.

Description : During preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, water or the ester formed should be removed as soon as it is formed.

Last Answer : Ans. The formation of esters from a carboxylic acid and an alcohol in the presence of acid catalyst in a reversible reaction. To shift the equilibrium in the forward direction, the water or ester formed should be removed as fast as it is formed.

Which of the following is not a carboxylic acid? (a) Malonic acid (b) Acetic acid (c) Picric acid (d) Adipic acid

Description : Which of the following is not a carboxylic acid? (a) Malonic acid (b) Acetic acid (c) Picric acid (d) Adipic acid

Last Answer : Picric acid

Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Description : Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Last Answer : both of the above

Amides undergo hydrolysis under acidic conditions to give (a) Carboxylic acid and amine (b) Carboxylic acid and ammonium ion (c) Carboxylate ion and ammonium ion (d) Carboxylate ion and amine

Description : Amides undergo hydrolysis under acidic conditions to give (a) Carboxylic acid and amine (b) Carboxylic acid and ammonium ion (c) Carboxylate ion and ammonium ion (d) Carboxylate ion and amine

Last Answer : Carboxylic acid and ammonium ion

Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have thehighest boiling point?(a) The amide(b) The alcohol(c) The ester(d) The carboxylic acid

Description : Consider a small aliphatic 1° amine, 1° alcohol, ester, carboxylic acid, and amide, all of similar molecular weight. Which one is most likely to have the highest boiling point? (a) The amide (b) The alcohol (c) The ester (d) The carboxylic acid

Last Answer : The amide

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

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

Which of the following is the correct ranking in decreasing order of relative Boiling Point of carbonyl containing compounds? (a) primary amide > carboxylic acid >> ester ~ acyl chloride ~ aldehyde ~ ketone (b) ester > carboxylic acid >> amide ~ acyl chloride ~ aldehyde ~ ketone (c) aldehyde ~ ketone > carboxylic acid >> ester ~ acyl chloride ~ amide(d) carboxylic acid > amide >> ester ~ acyl chloride ~ aldehyde ~ ketone

Description : Which of the following is the correct ranking in decreasing order of relative Boiling Point of carbonyl containing compounds? (a) primary amide > carboxylic acid >> ester ~ acyl chloride ~ aldehyde ~ ketone ... chloride ~ amide (d) carboxylic acid > amide >> ester ~ acyl chloride ~ aldehyde ~ ketone

Last Answer : primary amide > carboxylic acid >> ester ~ acyl chloride ~ aldehyde ~ ketone

An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (B) could be (a) a carbonyl compound (b) an alcohol (c) a carboxylic acid (d) an ether

Description : An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (B) could be (a) a carbonyl compound (b) an alcohol (c) a carboxylic acid (d) an ether

Last Answer : a carbonyl compound

The reduction of a ketone (a) always gives a primary alcohol (b) always gives a secondary alcohol (c) always gives a carboxylic acid (d) always gives a ketal

Description : The reduction of a ketone (a) always gives a primary alcohol (b) always gives a secondary alcohol (c) always gives a carboxylic acid (d) always gives a ketal

Last Answer : always gives a secondary alcoho

Oxidation of a secondary alcohol with K2Cr2O7/H+ produces (a) a carboxylic acid (b) a ketone (c) an aldehyde (d) an ester

Description : Oxidation of a secondary alcohol with K2Cr2O7/H+ produces (a) a carboxylic acid (b) a ketone (c) an aldehyde (d) an ester

Last Answer : a ketone

Oxidation of a primary alcohol with produces (a) a carboxylic acid (b) an ethe(c) a ketone (d) an esterr

Description : Oxidation of a primary alcohol with produces (a) a carboxylic acid (b) an ether (c) a ketone (d) an ester

Last Answer : a carboxylic acid

Dry ice on reaction with GR gives_______ a) Ester b) Carboxylic acid c) Aldehyde d) Ketone

Description : Dry ice on reaction with GR gives_______ a) Ester b) Carboxylic acid c) Aldehyde d) Ketone

Last Answer : b) Carboxylic acid

Carboxylic acid reacts with halogen in presence of red P to gives__________ a) α-halogen acids b) β-halogen acid c) Acid halide d) Dicarboxylic acid

Description : Carboxylic acid reacts with halogen in presence of red P to gives__________ a) α-halogen acids b) β-halogen acid c) Acid halide d) Dicarboxylic acid

Last Answer : a) α-halogen acids

Alkyl cyanide on reduction gives….. a. primary amine b. secondary amine c. amide d. carboxylic acid

Description : Alkyl cyanide on reduction gives….. a. primary amine b. secondary amine c. amide d. carboxylic acid

Last Answer : a. primary amine

What is the name of the least massive carboxylic (read: car-box-ILL-iy) acid.

Description : What is the name of the least massive carboxylic (read: car-box-ILL-iy) acid. 

Last Answer :  ANSWER: FORMIC ACID

Cyclohexanone is an example of: w) an aldehyde x) a carboxylic acid y) an alkyne z) a ketone

Description : Cyclohexanone is an example of: w) an aldehyde x) a carboxylic acid y) an alkyne z) a ketone

Last Answer : ANSWER: Z -- A KETONE 

Hepatitits with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin (a) Erythromycin base (b) Erythromycin stearate (c) Erythromycin estolate (d) Erythromycin ethylsuccinate

Description : Hepatitits with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin (a) Erythromycin base (b) Erythromycin stearate (c) Erythromycin estolate (d) Erythromycin ethylsuccinate

Last Answer : Ans: C

Hepatitis with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin: A. Erythromycin base B. Erythromycin stearate C. Erythromycin estolate D. Erythromycin ethylsuccinate

Description : Hepatitis with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin: A. Erythromycin base B. Erythromycin stearate C. Erythromycin estolate D. Erythromycin ethylsuccinate

Last Answer : C. Erythromycin estolate

(2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.

Description : (2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a ... essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.

Last Answer : Metal are good conductors, because – (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface

Saponification of a fat (a) always results in the formation of insoluble soaps (b) produces glycerol and soap (c) is used in the production of detergents (d) is used in the production of lactic acid

Description : Saponification of a fat (a) always results in the formation of insoluble soaps (b) produces glycerol and soap (c) is used in the production of detergents (d) is used in the production of lactic acid

Last Answer : produces glycerol and soap

Sodium benzoate on heating with soda-lime gives : (a) Sodium phenoxide (b) Benzene (c) Benzaldehyde (d) Benzophenone

Description : Sodium benzoate on heating with soda-lime gives : (a) Sodium phenoxide (b) Benzene (c) Benzaldehyde (d) Benzophenone

Last Answer : Benzene