Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition compound with ethyl alcohol

Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition compound with ethyl alcohol
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Assertion (A): Ethyl alcohol is soluble in organic solvents Reason(R): Calcium chloride can form an addition ... is false D. A is false but R is true
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Assertion(A): Ethyl alcohol is soluble in organic solvents Reason (R): Ethyl alcohol is having non polar ethyl group

Description : Assertion(A): Ethyl alcohol is soluble in organic solvents Reason (R): Ethyl alcohol is having non polar ethyl group

Last Answer : Assertion(A): Ethyl alcohol is soluble in organic solvents Reason (R): Ethyl alcohol is having non polar ... is false D. A is false but R is true

Lecithins are soluble in ordinary solvents except (A) Benzene (B) Ethyl alcohol (C) Methyl alcohol (D) Acetone

Description : Lecithins are soluble in ordinary solvents except (A) Benzene (B) Ethyl alcohol (C) Methyl alcohol (D) Acetone

Last Answer : Answer : D

Thermosetting resins/polymers as compared to thermoplastic ones are (A) Soluble in all organic solvents (B) More brittle (C) Formed by addition polymerisation only (D) Easily reshaped & reused

Description : Thermosetting resins/polymers as compared to thermoplastic ones are (A) Soluble in all organic solvents (B) More brittle (C) Formed by addition polymerisation only (D) Easily reshaped & reused

Last Answer : (B) More brittle

Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Description : Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Last Answer : Ethyl chloride

Ethyl alcohol is commonly made unfit for drinking by the addition of (a) potassium cyanide (b) methyl alcohol (c) chloroform (d) potassium chloride

Description : Ethyl alcohol is commonly made unfit for drinking by the addition of (a) potassium cyanide (b) methyl alcohol (c) chloroform (d) potassium chloride

Last Answer : Ans:(b)

A nonpolar molecule is usually: w) hydrophilic x) soluble in water y) hydrophytic z) soluble in organic solvents

Description : A nonpolar molecule is usually: w) hydrophilic x) soluble in water y) hydrophytic z) soluble in organic solvents

Last Answer : ANSWER: Z -- SOLUBLE IN ORGANIC SOLVENTS

Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol

Description : Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol

Last Answer : Ans: (b)

. In which solvent are alkenes most soluble? (a) water (b) ethyl alcohol (c) ammonia (d) carbon tetrachloride

Description : . In which solvent are alkenes most soluble? (a) water (b) ethyl alcohol (c) ammonia (d) carbon tetrachloride

Last Answer : carbon tetrachloride

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

Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the (A) Elimination of solvent drying facility (B) Higher nitration temperature (C) Lower solvent dilution ratio (D) All (A), (B) & (C)

Description : Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent ... nitration temperature (C) Lower solvent dilution ratio (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Description : Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Last Answer : Ans:(d)

Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents (C) Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity

Description : Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more ... of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity

Last Answer : (D) High molecular weight polymers on dissolving gives solution of very low viscosity

Which of the following are correct statements concerning unsaturated hydrocarbons? (a) All unsaturated hydrocarbons are insoluble in water. (b) All unsaturated hydrocarbons are soluble in nonpolar solvents. (c) All unsaturated hydrocarbons are more dense than water. (d) (a) & (c)

Description : Which of the following are correct statements concerning unsaturated hydrocarbons? (a) All unsaturated hydrocarbons are insoluble in water. (b) All unsaturated hydrocarbons are soluble in nonpolar solvents. (c) All unsaturated hydrocarbons are more dense than water. (d) (a) & (c)

Last Answer : (a) & (c)

Pick out the wrong statement. (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature (B) Normally, the gases which are easily liquefied are more soluble in common solvents (C) The gases which are capable of forming ions in aqueous solution are much more soluble in water than in other solvents (D) At constant pressure, solubility of a gas in a liquid increases with rise in temperature

Description : Pick out the wrong statement. (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature (B) Normally, the gases which are easily liquefied are more soluble ... (D) At constant pressure, solubility of a gas in a liquid increases with rise in temperature

Last Answer : (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature

When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is formed. Mole ratio of `PCl_(3)

Description : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is formed. Mole ratio of `PCl_(3)

Last Answer : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is ... : 1` C. `1 : 3` D. `2 : 1`

Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid

Description : Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid

Last Answer : ANSWER: Z -- 0.1 MOLAR HYDROCHLORIC ACID

Which compound reacts most rapidly by an SN1 mechanism? (a) Methyl chloride(b) Isopropyl chloride(c) Ethyl chloride(d) tert-Butyl chloride

Description : Which compound reacts most rapidly by an SN1 mechanism? (a) Methyl chloride (b) Isopropyl chloride (c) Ethyl chloride (d) tert-Butyl chloride

Last Answer : tert-Butyl chloride

Assertion (A) : Dope test is used to estimate the lavel of blood alcohol by analyzing the breath of persons drinking alcohol. Reason (R) : A drunken p

Description : Assertion (A) : Dope test is used to estimate the lavel of blood alcohol by analyzing the breath of persons drinking alcohol. Reason (R) : A drunken p

Last Answer : Assertion (A) : Dope test is used to estimate the lavel of blood alcohol by analyzing the breath of ... D. If both the assertion and reason are false

The compound that on treatment with benzene sulphonyl chloride, forms a precipitate soluble in alkali, is

Description : The compound that on treatment with benzene sulphonyl chloride, forms a precipitate soluble in alkali, is

Last Answer : The compound that on treatment with benzene sulphonyl chloride, forms a precipitate soluble in alkali, is A. `(C_(2) ... -NH_(2)` D. `CH_(3)-CONH_(2)`

(A) Ethyl chloride is more reactive than vinyl chloride towards nucleophilic substitution reactions. (R) Vinyl chloride is `+I` electron pushing group

Description : (A) Ethyl chloride is more reactive than vinyl chloride towards nucleophilic substitution reactions. (R) Vinyl chloride is `+I` electron pushing group

Last Answer : (A) Ethyl chloride is more reactive than vinyl chloride towards nucleophilic substitution reactions. (R) Vinyl ... A) is incorrect but (R) is correct.

Two organic compound A and B react with sodium metal and release `H_(2)` gas. A and B react with each other to give ethyl acetate. The A and B are

Description : Two organic compound A and B react with sodium metal and release `H_(2)` gas. A and B react with each other to give ethyl acetate. The A and B are

Last Answer : Two organic compound A and B react with sodium metal and release `H_(2)` gas. A and B react with each other ... (3)OH` D. `CH_(3)COOH " and " HCOOH`

During fermentation of sugar, the compound which is always formed is – (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene

Description : During fermentation of sugar, the compound which is always formed is – (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene

Last Answer : (2) Ethyl Alcohol Explanation: Fermentation is the conversion of sugar into car-bon dioxide has (CO2) and ethyl alcohol. This process is carried out by yeast cells using a range of enzymes.

At the end of glycolysis, six carbon compound ultimately changes into (a) ethyl alcohol (b) acetyl Co-A (c) pyruvic acid (d) ATP

Description : At the end of glycolysis, six carbon compound ultimately changes into (a) ethyl alcohol (b) acetyl Co-A (c) pyruvic acid (d) ATP

Last Answer : (c) pyruvic acid

Which of the following is an organometallic compound? (A) Isopropyl alcohol (B) Tetra-ethyl lead (C) Zeolite (D) Cumene

Description : Which of the following is an organometallic compound? (A) Isopropyl alcohol (B) Tetra-ethyl lead (C) Zeolite (D) Cumene

Last Answer : (B) Tetra-ethyl lead

During fermentation of sugar, the compound which is always formed is : (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene

Description : During fermentation of sugar, the compound which is always formed is : (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene

Last Answer : Ethyl Alcohol

When an organic compound is present in aqueous medium and is less soluble in any organic solvent, then it is separated by `:`

Description : When an organic compound is present in aqueous medium and is less soluble in any organic solvent, then it is separated by `:`

Last Answer : When an organic compound is present in aqueous medium and is less soluble in any organic ... B. distillation C. chromatography D. sublimation

Urea is widely used as a fertilizer because it (a) is an organic compound (b) contains very high amounts of nitrogen (c) is soluble in water (d) mixes easily with soil

Description : Urea is widely used as a fertilizer because it (a) is an organic compound (b) contains very high amounts of nitrogen (c) is soluble in water (d) mixes easily with soil

Last Answer : Ans:(b)

Select the incorrect statement (A) Lean mixes bleed more as compared to rich ones. (B) Bleeding can be minimized by adding pozzolana finer aggregate (C) Bleeding can be increased by addition 'of calcium chloride (D) None of the above

Description : Select the incorrect statement (A) Lean mixes bleed more as compared to rich ones. (B) Bleeding can be minimized by adding pozzolana finer aggregate (C) Bleeding can be increased by addition 'of calcium chloride (D) None of the above

Last Answer : Answer: Option D

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate (A) Is prone to thermal decomposition (B) Has high water solubility and is unstable (C) Is soluble in ammonium chloride and potassium chloride solution (D) All (A), (B) and (C)

Description : Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate (A) Is prone to thermal decomposition (B) Has high water solubility and is unstable (C) Is soluble in ammonium chloride and potassium chloride solution (D) All (A), (B) and (C)

Last Answer : (C) Is soluble in ammonium chloride and potassium chloride solution

Can you help me engineer this leak detection system for organic solvents?

Description : Can you help me engineer this leak detection system for organic solvents?

Last Answer : answer:I'm sorry that I may not be qualified to answer this question, but these are my ideas. If argon is what will be leaking, you could have some sort of argon detector, and some sort of ... when there are no leaks. Any drop in pressure would signal a leak. Look up pressure decay leak detection.

Black lung disease occurs in people working in – (1) Electroplating industry (2) Organic solvents industry (3) Paint manufacturing industry (4) Coal mines

Description : Black lung disease occurs in people working in – (1) Electroplating industry (2) Organic solvents industry (3) Paint manufacturing industry (4) Coal mines

Last Answer : (4) Coal mines Explanation: Coal worker's pneumoconiosis, colloquially referred to as black lung disease, is a lung disease that results from breathing in dust from coal, graphite, or man-made carbon ... to be removed by the body; that leads to inflammation, fibrosis, and in worse cases, necrosis.

Vulcanisation of rubber decreases its (A) Tensile strength (B) Resistance to organic solvents (C) Tackiness (D) Working temperature range

Description : Vulcanisation of rubber decreases its (A) Tensile strength (B) Resistance to organic solvents (C) Tackiness (D) Working temperature range

Last Answer : (C) Tackiness

Which of the following are capable of denaturing proteins? (a) organic solvents (b) extreme pH (c) heat (d) all of the these

Description : Which of the following are capable of denaturing proteins? (a) organic solvents (b) extreme pH (c) heat (d) all of the these

Last Answer : all of the these

Which of the following improperly describes the physical properties of an alkyne? (a) relatively nonpolar (b) nearly insoluble in water (c) less dense than water (d) insoluble in most organic solvents

Description : Which of the following improperly describes the physical properties of an alkyne? (a) relatively nonpolar (b) nearly insoluble in water (c) less dense than water (d) insoluble in most organic solvents

Last Answer : insoluble in most organic solvents

What are the three classes of organic solvents?

Description : What are the three classes of organic solvents?

Last Answer : Typically, organic solvents can be split up in the following classes: Oxygenated, Hydrocarbon, and Halogenated. Oxygenated solvents include alcohols, glycol ethers, ketones, esters, ... solvents include aliphatics and aromatics. Halogenated solvents include those that are chlorinated primarily.

Black lung disease occurs in people working in (1) Electroplating industry (2) Organic solvents industry (3) Paint manufacturing industry (4) Coal mines

Description : Black lung disease occurs in people working in (1) Electroplating industry (2) Organic solvents industry (3) Paint manufacturing industry (4) Coal mines

Last Answer :  Coal mines

Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? (A) Isopropyl alcohol (B) Butyl alcohol (C) Toluene (D) Hexane

Description : Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? (A) Isopropyl alcohol (B) Butyl alcohol (C) Toluene (D) Hexane

Last Answer : (B) Butyl alcohol

Assertion : Insulin is not given orally. Reason : Insulin hormone is lipid-soluble and directily enters inside the cell membrane.

Description : Assertion : Insulin is not given orally. Reason : Insulin hormone is lipid-soluble and directily enters inside the cell membrane.

Last Answer : Assertion : Insulin is not given orally. Reason : Insulin hormone is lipid-soluble and directily enters ... D. If both Assertion and Reason are false.

Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has high toxicity and is soluble in water.

Description : Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has high toxicity and is soluble in water.

Last Answer : Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has ... D. If both Assertion and Reason are false

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

Statement -I In forth floatation process sodium ethyl xanthale is used as collector. Statemant -2Sulphide oress are waer soluble .

Description : Statement -I In forth floatation process sodium ethyl xanthale is used as collector. Statemant -2Sulphide oress are waer soluble .

Last Answer : Statement -I In forth floatation process sodium ethyl xanthale is used as collector. Statemant -2Sulphide oress are waer soluble .

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

A mixture of two organic compound gives red coloured precipitate with cuprous chloride and silver mirror on heating with Zn and `NH_(4)Cl` followed by

Description : A mixture of two organic compound gives red coloured precipitate with cuprous chloride and silver mirror on heating with Zn and `NH_(4)Cl` followed by

Last Answer : A mixture of two organic compound gives red coloured precipitate with cuprous chloride and silver mirror on heating ... mixture contains : A. B. C. D.

0.3780g of organic chloro compound gave 0.5740g of silver chloride in carius estimation .Calculate the percentage of chlorine present in the compound.

Description : 0.3780g of organic chloro compound gave 0.5740g of silver chloride in carius estimation .Calculate the percentage of chlorine present in the compound.

Last Answer : % of chlorine = 35.5*mass of AgCl formed * 100/143.5 * mass of the substance = 35.5*0.5740*100/143.5*0.3780 = 19.6 %

(a) Write electron dot diagram for chlorine (At No. 17) and calcium (At No. 20). Show the formation of calcium chloride by transfer of electrons. (b) Identify the nature of above compound’and explain three physical properties of such compound. -Chemistry

Description : (a) Write electron dot diagram for chlorine (At No. 17) and calcium (At No. 20). Show the formation of calcium chloride by transfer of electrons. (b) Identify the nature of above compound’and explain three physical properties of such compound. -Chemistry

Last Answer : (b) It is ionic compound. Physical properties 1.It is hard and solid. 2.It has high melting and boiling point. 3.It soluble in water.

Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Description : Which among the following is a covalent compound? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Last Answer : (4) Carbon tetrachloride Explanation: Ionic compounds are made up of a metal and non-metal, and covalent compounds are made up of two nonmetals

Kidney stones are mainly formed by which of the following compound - (1) Sodium chloride (2) Silicates (3) Calcium bicarbonate (4) Calcium oxalate

Description : Kidney stones are mainly formed by which of the following compound - (1) Sodium chloride (2) Silicates (3) Calcium bicarbonate (4) Calcium oxalate

Last Answer : (4) Calcium oxalate Explanation: Kidney stones form when your urine contains more crystal-forming substances — such as calcium, oxalate and uric acid — than the fluid in your urine can dilute.

Which among the following is a covalent compound ? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Description : Which among the following is a covalent compound ? (1) Calcium chloride (2) Magnesium fluoride (3) Sodium chloride (4) Carbon tetrachloride

Last Answer : Carbon tetrachloride