Acidity of diprotic acids in aqueous solutions increases in the order

Acidity of diprotic acids in aqueous solutions increases in the order
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Acidity of diprotic acids in aqueous solutions increases in the order A. `H_(2)S lt H_(2)Se lt H_(2)Te` B. `H_ ... D. `H_(2)Se lt H_(2) Te ltt H_(2)S`
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Acidity of diprotic acids in aqueous solutions increases in the order

Description : Acidity of diprotic acids in aqueous solutions increases in the order

Last Answer : Acidity of diprotic acids in aqueous solutions increases in the order A. `H_(2)S lt H_(2)Se lt H_(2)Te` B. `H_ ... D. `H_(2)Se lt H_(2) Te ltt H_(2)S`

Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Description : Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Last Answer : these give unionised acid or base on reaction with added acid or alkali

What statement about Arrhenius acids is FALSETheir aqueous solutions are electrolytesTheir water solutions are called aqueous acids They increase the concentration of hydroxide ions in aqueous solutionThey are molecular compounds with hydrogen ions?

Description : What statement about Arrhenius acids is FALSETheir aqueous solutions are electrolytesTheir water solutions are called aqueous acids They increase the concentration of hydroxide ions in aqueous solutionThey are molecular compounds with hydrogen ions?

Last Answer : The answer is: They increase the concentration of hydroxide ions in aqueous solution.

Amphoteric substances: w) act as either bases or acids x) precipatate from aqueous solutions y) salt out of basic solutions z) form emulsions in oils

Description : Amphoteric substances: w) act as either bases or acids x) precipatate from aqueous solutions y) salt out of basic solutions z) form emulsions in oils

Last Answer : ANSWER: W -- ACT AS EITHER BASES OR ACIDS

The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Description : The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Last Answer : (1) pH meter Explanation: A pH meter is an electronic device used for measuring the pH (acidity or alkalinity) of a liquid. A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading.

The apparatus used to test acidity of aqueous solution is (1) pH meter (2) Ammeter (3) Hygrometer(4) Acidmeter

Description : The apparatus used to test acidity of aqueous solution is (1) pH meter (2) Ammeter (3) Hygrometer(4) Acidmeter

Last Answer : pH meter

It has been suggested that enterocyte-specific fuels be utilized for all patients receiving parenteral nutrition. Theoretically, the benefits of such fuels include: A. Glutamine increases gut mucosal protein content and wall thickness. B. Butyrate increases jejunal mucosal protein content and wall thickness. C. The short-chain fatty acids—butyrate, propionate, and acetate—are useful in supporting ileal mucosal protein content and thickness. D. The use of glutamine-enriched solutions for parenteral nutrition for patients with chemotherapy toxicity or radiation enteritis is without hazards.

Description : It has been suggested that enterocyte-specific fuels be utilized for all patients receiving parenteral nutrition. Theoretically, the benefits of such fuels include: A. Glutamine increases ... parenteral nutrition for patients with chemotherapy toxicity or radiation enteritis is without hazards.

Last Answer : Answer: NONE IS ENTIRELY TRUE DISCUSSION: The use of enterocyte-specific fuels is part of a new and potentially exciting phase of nutritional pharmacology in parenteral nutrition; ... the maintenance of colonocyte-specific nutrition and, in the case of butyrate, ileal enterocyte nutrition

What is a polyprotic or diprotic base ?

Description : What is a polyprotic or diprotic base ?

Last Answer : A base that takes more than one proton is called a polyprotic or diprotic base. E.g. PO43- + 3H + → H3PO4

What is polyprotic or diprotic acid ?

Description : What is polyprotic or diprotic acid ?

Last Answer : Acid that gives more than one proton is called polyprotic or diprotic acid.

Ortho phosphoric acid is triprotic but phosphoric acid is diprotic. Why?

Description : Ortho phosphoric acid is triprotic but phosphoric acid is diprotic. Why?

Last Answer : Ans: Because of their structures ortho phosphoric acid and phosphoric acid have three and two ionisable hydrogen.

Which of the following statements is not valid for oxoacids of phosphorus? (1) All oxoacids contain atleast one P = O unit and one P – OH group (2) Orthophosphoric acid is used in the manufacture of triple superphosphate. (3) Hypophosphorous acid is a diprotic acid. (4) All oxoacids contain tetrahedral four coordinated phosphorous

Description : Which of the following statements is not valid for oxoacids of phosphorus? (1) All oxoacids contain atleast one P = O unit and one P – OH group (2) . (3) Hypophosphorous acid is a diprotic acid. (4) All oxoacids contain tetrahedral four coordinated phosphorous

Last Answer : Orthophosphoric acid is used in the manufacture of triple superphosphate.

One equivalent of a triprotic acid is the same as: w) one mole of the acid x) one-third mole of the acid y) three moles of the acid z) three equivalents of a diprotic acid

Description : One equivalent of a triprotic acid is the same as: w) one mole of the acid x) one-third mole of the acid y) three moles of the acid z) three equivalents of a diprotic acid

Last Answer : ANSWER: X -- ONE-THIRD MOLE OF THE ACID

Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ions and forms amino acids(B) Calcium present in the fertiliser helps in correcting the soil acidity(C) Particle size range of a good granular fertiliser is 10-15 mesh and itcontains less moisture as compared to finely divided powder form of fertiliser(D) Ammonium nitrate fertiliser is obtained as a by-product in an integratedsteel plant having by-product coke ovens

Description : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl oxygen (c) the acidity of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Last Answer : the resonance stability associated with the carboxylate ion

Acidity in water is caused due to (A) Mineral acids (B) Free CO2 (C) Iron sulphate (D) All the above

Description : Acidity in water is caused due to  (A) Mineral acids  (B) Free CO2 (C) Iron sulphate  (D) All the above 

Last Answer : (D) All the above 

(a) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO. (b) Name the solvent in which ionic compounds are generally soluble. (c) Why are aqueous solutions of ionic compounds able to conduct electricity? -Chemistry

Description : (a) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO. (b) Name the solvent in which ionic compounds are generally soluble. (c) Why are aqueous solutions of ionic compounds able to conduct electricity? -Chemistry

Last Answer : (b) Ionic compounds are soluble in water. (c) It is because aqueous solutions consist of ions which can move freely in them and carry current.

Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

Description : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

Last Answer : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions? A. `Li^(+)` B. `Na^(+)` C. `Rb^(+)` D. `Cs^(+)`

A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous solution of the compound showed 4 p

Description : A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous solution of the compound showed 4 p

Last Answer : A compound is made by mixing cobalt (III) nitrite and potassium nitrite solutions in the ratio of 1:3. The aqueous ... )]` D. `K[Co(NO_(2))_(4)]`

Each of these are added to a mixture of aqueous solutions of iodide and `CHCl_(3)` separately. Which will give a positive test for iodine when the sol

Description : Each of these are added to a mixture of aqueous solutions of iodide and `CHCl_(3)` separately. Which will give a positive test for iodine when the sol

Last Answer : Each of these are added to a mixture of aqueous solutions of iodide and `CHCl_(3)` separately. ... . NaBr solution C. Chlorine water D. Bromine water

Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

Description : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

Last Answer : Write balanced chemical equations : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

Explain the rule to find specific heat of aqueous solutions.

Description : Explain the rule to find specific heat of aqueous solutions.

Last Answer : For aqueous solutions of salts, the specific heat can be estimated by assuming the specific heat of the solution equal to that of the water alone. Thus, for a 15% by weight solution of sodium chloride in water, the specific heat would be approximately 0.85.

__________ are used as corrosion inhibitor for iron & steel in aqueous solutions. (A) Phosphates (B) Chromates (C) Sulphates (D) Bi-carbonates

Description : __________ are used as corrosion inhibitor for iron & steel in aqueous solutions. (A) Phosphates (B) Chromates (C) Sulphates (D) Bi-carbonates

Last Answer : (B) Chromates

When dilute aqueous solutions of two salts are mixed, the process is associated with (A) Decrease in temperature (B) Increase in temperature (C) No change in temperature (D) Change in temperature which is a function of composition

Description : When dilute aqueous solutions of two salts are mixed, the process is associated with (A) Decrease in temperature (B) Increase in temperature (C) No change in temperature (D) Change in temperature which is a function of composition

Last Answer : B) Increase in temperature

A student prepares aqueous solutions of the following salts: Copper sulphate, ferrous sulphate, sodium sulphate and barium chloride. Write the color of each solution thus formed?

Description : A student prepares aqueous solutions of the following salts: Copper sulphate, ferrous sulphate, sodium sulphate and barium chloride. Write the color of each solution thus formed?

Last Answer : Answer. Copper sulphate (aq) – blue in color Ferrous sulphate (aq) – pale green in color Sodium sulphate (aq) – colorless Barium chloride (aq) – white in color

Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Description : Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Last Answer : ANSWER: Y -- ACETIC ACID

The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS

Which of the following is NOT a general property of hydroxide bases in aqueous solution? w) High solubility x) Bitter taste y) Ability to neutralize aqueous acid solutions z) Ability to change phenolphthalein from colorless to red

Description : Which of the following is NOT a general property of hydroxide bases in aqueous solution? w) High solubility x) Bitter taste y) Ability to neutralize aqueous acid solutions z) Ability to change phenolphthalein from colorless to red

Last Answer : ANSWER: W -- HIGH SOLUBILITY (The hydroxides of the alkali metals are soluble in water but all the other metal hydroxides are only moderately or sparingly soluble.)

Which of the following increases soil acidity ?

Last Answer : : The standard of soil pH is 6.0 to 8.0 , that is , if the pH starts to decrease from 6 , then the acidity of the soil will continue to increase. If the pH value is less than ... is ammonium hydroxide. And the application of excess sulfur or sulfur in the soil increases the acidity of the soil.

Why does Fossil fuel combustion increases the acidity of rain?

Description : Why does Fossil fuel combustion increases the acidity of rain?

Last Answer : Burning fossil fuels lets off sulphur compounds in the smoke.When the sulphuric compounds are wetted by rain, the turn intosulphuric acid. Oddly enough, it has been proven that acid rain hasa slight ... by a small amount. Thankfully, carbon dioxide and water vaporin the air warm things back up.

True statements about aldosterone include: a. it increases the amount of Na+-K+ ATPase in the target cells b. it reduces the sodium content of the sweat c. it increases the acidity of urine d. all above

Description : True statements about aldosterone include: a. it increases the amount of Na+-K+ ATPase in the target cells b. it reduces the sodium content of the sweat c. it increases the acidity of urine d. all above

Last Answer : all above

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... . Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored.

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored.

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

In context to agriculture what is “Fallow Land”? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its acidity. c. Agricultural field which is water logged before rice cultivation so that soil’s water retention capacity increases d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

Description : In context to agriculture what is Fallow Land ? a. Fallowing is the process to make the soil rich in phosphorus b. Agricultural land which is added with organic matter to reduce its ... Agriculture field which is left unplanted so that the soil's natural nutrient balance can be restored.

Last Answer : d. Agriculture field which is left unplanted so that the soil’s natural nutrient balance can be restored.

The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid

Description : The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid

Last Answer : A

Which among the following is false about acids? (1) They give H+ ions in aqueous solution (2) Most acids contain hydrogen (3) They turn blue litmus red (4) They are bad conductor of electricity in aqueous solution

Description : Which among the following is false about acids? (1) They give H+ ions in aqueous solution (2) Most acids contain hydrogen (3) They turn blue litmus red (4) They are bad conductor of electricity in aqueous solution

Last Answer : (4) They are bad conductor of electricity in aqueous solution Explanation: Acids are good conductors of electric current in aqueous solution. When acids come in contact with water, they liberate OH ions, resulting in conduction of electricity.

The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid

Description : The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid

Last Answer : (3) Acetic acid Explanation: Vinegar is an aqueous solution of acetic acid and trace chemicals that may include flavorings. Vinegar typically contains 5–20% acetic acid by volume.

The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid

Description : The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid

Last Answer : (A) Bile Salts

The set with correct order of acidity is :

Description : The set with correct order of acidity is :

Last Answer : The set with correct order of acidity is : A. `HClO lt HClO_2 lt HClO_3 lt HClO_4` B. `HClO_4 lt ... HClO_4` D. `HClO_4 lt HClO_2 lt HClO_3 lt HClO`

The decreasing order of acidity among the following compounds is : `underset("(I)")("ethanol"), underset("(II)")("2,2,2-trifluoroethanol"),underset("(

Description : The decreasing order of acidity among the following compounds is : `underset("(I)")("ethanol"), underset("(II)")("2,2,2-trifluoroethanol"),underset("(

Last Answer : The decreasing order of acidity among the following compounds is : `underset("(I)")("ethanol"), underset("(II)")( ... IV gt I D. I gt II gt III gt IV

Which of the following presents the correct order of the acidity in the given compounds?

Description : Which of the following presents the correct order of the acidity in the given compounds?

Last Answer : Which of the following presents the correct order of the acidity in the given compounds? A. ` ... FCH_(2)COOHgtCH_(3)COOHgtBrCH_(2)COOGgtClCH_(2)COOH`

Strength of acidity is in order:

Description : Strength of acidity is in order:

Last Answer : Strength of acidity is in order: A. II gt I gt III gt IV B. III gt IV gt I gt II C. I gt IV gt III gt II D. IV gt III gt I gt II

In the compound given below: the correct order of acidity of the positions (X), (Y) and (Z) is :

Description : In the compound given below: the correct order of acidity of the positions (X), (Y) and (Z) is :

Last Answer : In the compound given below: the correct order of acidity of the positions (X), (Y) and (Z) is : A. (Z) gt (X) ... gt (Z) gt (Y) D. (Y) gt (X) gt (Z)

The set with correct order of acidity is :

Description : The set with correct order of acidity is :

Last Answer : The set with correct order of acidity is : A. `HClO lt HClO_(2) lt HClO_(3) lt HClO_(4)` B. `HClO_(4 ... )` D. `HClO_(4)lt HClO_(2)lt HClO_(3)lt HClO`

In the following compounds phenol (I), p-cresol (II), m-nitrophenol (III) and p-nitrophenol (IV), the order of acidity is:

Description : In the following compounds phenol (I), p-cresol (II), m-nitrophenol (III) and p-nitrophenol (IV), the order of acidity is:

Last Answer : In the following compounds phenol (I), p-cresol (II), m-nitrophenol (III) and p- ... `IgtIVgtIIIgtII` C. `IIgtIgtIIIgtIV` D. `IVgtIIIgtIgtII`

Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH(III) and C_(6)H_(5)COOH(IV)`?

Description : Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH(III) and C_(6)H_(5)COOH(IV)`?

Last Answer : Which is decreasing order of acidity in, `HCOOH(I), CH_(3)COOH(II), CH_(3)CH_(2)COOH( ... B. `IVgtIIIgtIIgtI` C. `IVgtIgtIIgtIII` D. `IgtIVgtIIgtIII`

Give the correct order of decreasing acidity of the following compounds

Description : Give the correct order of decreasing acidity of the following compounds

Last Answer : Give the correct order of decreasing acidity of the following compounds

Which order is correct about acidity?

Description : Which order is correct about acidity?

Last Answer : Which order is correct about acidity? A. `CH_(3)COOH gt C_(6)H_(5)COOH gt C_(6)H_(5)OH` B. `C_(6)H_(5 ... (6)H_(5)OH gt CH_(3)COOH gt C_(6)H_(5)COOH`

In the following compounds, the order of acidity is:

Description : In the following compounds, the order of acidity is:

Last Answer : In the following compounds, the order of acidity is: A. `I gt IV gt III gt II` B. `II gt IV gt I gt II` ... I gt III gt IV` D. `IV gt III gt I gt II`

The order of increasing acidity is :(a) chloroacetic acid > formic acid > benzoic acid(b) benzoic acid > formic acid > chloroacetic acid(c) all are the same(d) not determinable from available data

Description : The order of increasing acidity is : (a) chloroacetic acid > formic acid > benzoic acid (b) benzoic acid > formic acid > chloroacetic acid (c) all are the same (d) not determinable from available data

Last Answer : chloroacetic acid > formic acid > benzoic acid