Description : Is solubility(dissolves) physical or chemical change?
Last Answer : Solubility is a physical property because it is related to aphysical, not a chemical, change. When something dissolves, it doesnot change chemically. It is still the same compound/molecule, etc.when it was not dissolved in the solvent.
Description : For a substance, density, solubility and melting point are examples of: w) physical properties x) amorphous properties y) chemical properties z) potential properties
Last Answer : ANSWER: W -- PHYSICAL PROPERTIES
Description : Consider (R)- and (S)-2-butanol. Which physical property distinguishes the two compounds? (a) melting point (b) solubility in common solvents (c) Rotation of plane-polarized light (d) Infrared spectrum
Last Answer : Rotation of plane-polarized light
Description : If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as (A) Solubility increases as temperature ... (D) Solubility increases or decreases with temperature depending on the Gibbs free energy change of solution
Last Answer : (B) Solubility increases as temperature decreases
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.)
Description : What is meant by solubility of a solute? -Chemistry 9th
Last Answer : Solubility is the relative ability of a solute to dissolve into a solvent. Several factors affect the solubility of a given solute in a given solvent. Temperature often plays the largest role, although pressure can have a significant effect for gases.
Description : What is the solubility of sulfur ?
Last Answer : Sulfur valence 2, 4, 6 .
Description : What is the solubility of lithium ?
Last Answer : Lithium has one.
Description : Compare solubility and solubility product ?
Last Answer : : The maximum amount of substance that can be dissolved in 100 grams of water or any solvent at the weight expressed in grams is called solubility ( S) of that substance . But ... the solubility product does not change under the effect of synchronization. Both are equally affected by temperature.
Description : `A_(3)B_(2)` is a sparingly soluble salt with molar mass `M(gmol_(-))` and solubility `x` gm `litre_(-1)`, the ratio of the molar concentration of `B^
Last Answer : `A_(3)B_(2)` is a sparingly soluble salt with molar mass `M(gmol_(-))` and solubility `x` gm `litre_(-1)`, the ... `(1)/(54)(M^(4))/(x^(4))` D. None
Description : Which of the following solubility order is not correct :-
Last Answer : Which of the following solubility order is not correct :- A. `MgF_(2) lt MgCl_(2) lt MgBr_(2) lt Mgl_(2)` ... Cs_(2)O` D. `CsF lt CsCl lt CsBr lt Csl`
Description : The solubility of `Ba_(3)(AsO_(4))_(2)`(formula mass=690) is `6.9xx10^(-2)` g//100 mL. What is the `K_(sp)`?
Last Answer : The solubility of `Ba_(3)(AsO_(4))_(2)`(formula mass=690) is `6.9xx10^(-2)` g//100 mL. What is the `K_(sp ... )` C. `1.0xx10^(-15)` D. `6.0xx10^(-13)`
Description : The order of solubility of noble gases in water is
Last Answer : The order of solubility of noble gases in water is A. (A)HegtArgtKrgtNegtXe B. (B)HegtNegtArgtKrgtXe C. (C)XegtArgtKrgtHegtNe D. (D)XegtKrgtArgtNegtHe
Description : The solubility of noble gases in water shows the order
Last Answer : The solubility of noble gases in water shows the order A. `He gr Ar gt Kr gt Ne gt Xe` B. `He gt Ne ... Xe gt Kr gt Ar gt Ne gt He` D. None of these
Description : How is the solubility of sodium nitrate and of ptassium nitrate affected by temperayure?
Last Answer : Need answer
Description : What are customary units of solubility on solubility curves?
Last Answer : These units are g/100 mL or g/L.
Description : What is the difference between solubility of sodium nitrate and ammonia?
Last Answer : Sodium nitrate is more soluble in water.
Description : What is the solubility of silicon?
Last Answer : It is the basis of glass and is extremely insoluble in water andmost other solvents. HF would be needed to dissolve it.
Description : How can you show the effect of pressure on the solubility of carbon dioxide gas in water?
Last Answer : Feel Free to Answer
Description : What is the relationship between density and solubility?
Description : What is the molar solubility of marble in acid rainwater for which pH4.20?
Description : How do you increase the solubility of a solution?
Last Answer : The term 'solubility of a solution' is meaningless. Perhaps you mean how do you increase the solubility of a solute in a solvent? In that case, if your solute is a solid, increase the temperature, and if it is a gas, decrease the temperature.
Description : What is the effect of increased temperature on the solubility of a gas?
Last Answer : Increasing the temperature the solubility of a gas decrease.
Description : Is it true or false that solubility is The ability of one substance to dissolve in another?
Last Answer : Yes
Description : How does the pressure affect the solubility of a gas?
Last Answer : The solubility of a gas in a liquid is directly proportional to the pressure of that gas above the surface of the solution.
Description : Isoelectric point of amino acids is used for (A) Crystallisation (B) Precipitation (C) Solubility (D) Reactivity
Last Answer : Answer : B
Description : The solubility of most proteins is lowered at high salt concentrations is called as (A) Salting in process (B) Salting out process (C) Isoelectric focussing(D) None of these
Description : The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis
Last Answer : Answer : D
Description : A sharp moving boundary is obtained between the pure solvent and solute containing layer in (A) Chromatography (B) Immuno Reactivity (C) Ultra Centrifugation (D) Solubility curve
Last Answer : Answer :C
Description : The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these
Last Answer : Answer : C
Description : In the genetic disorder of cystinuria, the patient excretes large quantities of cystine in their urine and its low solubility causes crystalline cystine to precipitate as stones in kidneys. The remedy ... C) NaHCO3 prevents stone formation by hydrolysis of cystine to cysteine (D) None of these
Description : An advantge of betamethasone acetate over betamethasone sodium phosphate is (a) Fewer allergic reactions (b) Prompter action (c) More sustained action (d) Greater solubility (e) There is no advantage
Last Answer : Ans: C
Description : The catalytic power of enzymes is due to (a) the presence of amino acids in their structures (b) their high molecular weight (c) their ability to lower the activation energy of the reaction (d) their limited solubility in water and other solvents
Last Answer : Ans:(c)
Description : Pick the wrong statement: hydrogen bonding results in (a) Increased solubility in water (b) Higher Van der Waal's forces (c) Molecular association (d) Abnormal boiling point
Last Answer : Ans:(b)
Description : Which of the following has highest solubility in ionic solvent? (a) Silver iodide (b) Silver bromide (c) Silver chloride (d) Silver fluoride
Last Answer : Ans:(d)
Description : The solubility of the alkali metal carbonates (a) Decreases as we go down the group (b) Increases as we go down the group (c) Increases at first and then decreases (d) Does not show regular variation
Description : The main use of salt in the diet is to - (1) increase the solubility of the food particles in water. (2) produce in small amounts the hydrochloric acid required for the digestion of food (3) ease the process of cooking (4) make the taste of the food better
Last Answer : (2) produce in small amounts the hydrochloric acid required for the digestion of food Explanation: Salt plays a primary role in the processes of digestion and absorption. Salt activates ... hydrochloric acid. Hydrochloric acid is a very important digestive secretion, which lines the stomach walls.
Description : The temperature affects the A. Biological activity of bacteria in sewage B. Solubility of gases in sewage C. Viscosity of sewage D. All the above
Last Answer : ANS: D
Description : Pick up the correct statement from the following: A. Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers B. 4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated ... river C. Solubility of oxygen in sewage is 95% of that of distilled water D. All the above
Description : Pick up the correct statement from the following: A. In treated sewage, 4 ppm of D.O. is essential B. Only very fresh sewage contains some dissolved oxygen C. The solubility of oxygen in sewage is 95% that is in distilled water D. All the above
Description : Vulcanisation of rubber does not increase its (A) Softness (B) Oxidation resistance (C) Weight & strength (D) Elasticity & water solubility
Last Answer : (A) Softness
Description : Pick out the wrong statement. (A) Linear polymers are formed from bifunctional groups only and are normally thermoplastic (B) Cross-linked branched chain polymers are either elastometric or ... (D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction
Last Answer : D) Dibasic acids reacts with dihydric alcohols to give polyesters using addition polymerisation reaction
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
Description : Pick out the undesirable property for a solvent meant for dewaxing of lube oil. (A) Complete miscibility with oil (B) High solubility of wax in the solvent (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : In an interphase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be (A) Liquid phase resistance-controlled (B) Gas phase resistance controlled (C) Impossible (D) Driven by a non-linear driving forc
Last Answer : (B) Gas phase resistance controlled
Description : A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternary system containing two pairs of partially miscible liquids? (A) 0 (B) 1 (C) 2 (D) 3
Last Answer : (A) 0
Description : 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is: (A) 0.4 (B) 0.25 (C) 0.2 (D) 0.175
Last Answer : (C) 0.2
Description : Pick out the wrong statement. (A) The operating line always lies above the equilibrium solubility curve in case of a single component absorber (B) The operating line always lies below the equilibrium ... (D) The solubility of a particular gas in ideal solution in any solvent is always the same
Last Answer : (C) The operating pressure in solvent extraction system should be below vapor pressures of all components
Description : Discuss the Application of Solubility Product and common ion Effect?
Last Answer : Ans. (1) Calculation of solubility of sparingly soluble salts. (2) Predicting ionic or precipitation reaction. (3)In explaining salting out or precipitation of soluble salts. (4) In qualitative analysis. (5) In fractional precipitation.
Description : How does solubility product differ from ionic product?
Last Answer : Ans. Solubility product:- the product of the concentrations of the ions of the salt in its saturated solution at a given temperature raised to the power the number of ions produced by ... raised to the power of their coefficients in the balanced chemical equation in solution at any concentration.