Related Questions

100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?
A 70 kg
B 36 kg
C 44 kg
D 56 kg
Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?
A 6.09%
B 10%
C 10.75%
D 21.5%
Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
A 600
B 800
C 300
D 250
E None of these
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.
A 10
B 20
C 70
D 100
The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution.
A Power of hydrogen ion concentration
B Percentage of hydrogen ions
C Presence of hydrogen ions
D None of these
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be
A More
B Less
C Same
D Data insufficient; can't be predicted
A shopkeeper combined X liters of a solution containing 10% of certain material Q, with 10 liters of another solution that contained 2% of that materiale Q, to produce Z liters of a solution that had 5% of Q. What is the value of X?
A 5 liters
B 6 liters
C 7 liters
D 8 liters
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?
A Exact concentration of solution is not given
B Character of semi permeable membrane is not given
C The flow of solution is not possible through semi permeable membrane
D All are incorrect
The pH scale measures the hydrogen ion concentration in a solution. What does P mean in this?
A Power
B Potenz, which means power in German
C Potential, which means comfort in German
D Potency, which means power in German
How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?
A 10
B 20
C 40
D 80

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