A. 0.01
B. 0.1
C. 1
D. 10
Related Mcqs:
- One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?
A. Brix = (400/G) – 400
B. Brix = 200 (G-1)
C. Brix = 145 – (145/G)
D. None of these - 80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4 .10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution is_________________?
A. 0.00
B. 0.18
C. 0.24
D. 1.00 - The evaporation of aqueous solution of sugar causes its molarity to__________________?
A. Decrease
B. Increase
C. Remain unchanged
D. Either A. or B.; depends on the concentration of the solution - pH value of a solution containing 1 gm of hydrogen ion per litre will be ____________________?
A. 0
B. 1
C. 7
D. 10 - pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be_________________?
A. 0
B. 10
C. 7
D. 14 - Number of gram equivalent of solute dissolved in one litre of solution is called its___________________?
A. Normally
B. Molarity
C. Molality
D. Formality - Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution) ?
A. log (1/H+)
B. – log (1/H+)
C. 1/log H+
D. None of these - The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be______________?
A. Basic
B. More acidic
C. Neutral
D. Of the same acidity - At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be ________________________?
A. 6
B. 8
C. 10
D. 12 - Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is________________?
A. 20
B. 32.2
C. 45.35
D. 58.65
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