A) making a solution involves a physical change. B) solutions are homogeneous. C
ID: 705289 • Letter: A
Question
A) making a solution involves a physical change. B) solutions are homogeneous. C) the particles in a solution are atomic or molecular in size. D) solutions are colorless. E) solutions are transparent. 31. In a mixture of 5 mL water, 10 mL. alcohol, and 50 ml acetone the solvent (s) 1s(are): A) acetone B) alcohol. C) water. D) acetone and alcohol. E) alcohol and water. 32, Nonpolar compounds are soluble in A) ionic compounds B) electrolytes C) polar solvents D) nonpolar solvents E) water 33. Which ionic compound is soluble in water? A) PbBr2 B) Fe (OH)3 C) BaS04 D) Ca (NO3)2 E) More than one of the ionic compounds is soluble in water. 34. Which of the following has the least effect on the solubility of a solid in a liquid solvent? A) temperature B) pressure C) nature of the solvent D) nature of the solute E) concentration of soluteExplanation / Answer
31) The solvent is the substance in maximum quantity: here acetone is in maximum quantity. Hence, the answer is Acetone.
32) As per the rule: like dissolves like, nonpolar compounds will be soluble in nonpolar solvents.
Answer is nonpolar solvents.
33) As per the solubility rule: The chlorides, bromides, and iodides of all metals except lead, silver, and mercury(+) are soluble in water. PbBr2 is not soluble in water.
Hydroxide salts of transition metals and Al3+ areinsoluble. Thus, Fe(OH)3,and Fe(OH)2, Al(OH)3, Co(OH)2 are not soluble.
So, Fe(OH)2 is not soluble.
BaSO4(Barium sulphate) is insoluble in water.
Salts containing nitrate ion (NO3-) are generally soluble. Thus it makes, Ca(NO3)2 soluble.
Answer is option D) Ca(NO3)2
34) Pressure has the least effect on the solubility of solid into the liquid solvent. Because pressure exerted by solid is negligible. Answer is option B) pressure.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.