Related Questions

Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?
A 10%
B 33.3%
C 40%
D 42.5%
Salt cake is chemically represented by
A Na2SO4
B CaSO4.$$\frac{1}{2}$$ H2O
C MgSO4
D BaSO4
Glauber's salt is chemically represented by
A Na2SO4.10H2O
B CaCl(OCl)
C CaSO4.H2O
D (NH4)2SO4
How much salt must we add to 10 grams of a 20% salt solution to strengthen it into a 50% solution?
A 5 gm
B 3 gm
C 6 gm
D 4 gm
Due to a 25% increase in the price of salt, a person got 10 kg less quantity for Tk. 500 than he was getting before the increase.What was the initial price per kg of salt in taka?
A 10
B 15
C 25
D 30
How many pounds of pure salt must be added to 30 pounds of a 2% solution of salt and water to increase it to a 10% solution?
A 23
B 83
C 63
D 75
A recipe for 4 servings requires salt and pepper to be added in the ratio of 2: 3 . If the recipe is adjusted to make 8 servings, what is the ratio of the salt and pepper that must now be added?
A 4: 3
B 2 : 6
C 2 : 3
D 3 : 2
Fill in the gaps : There is no such thing as chemically pure water ----nature.
A in
B of
C from
D none of these
There is no such things as chemically pure water--- nature.
A in
B of
C from
D none of these
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
A Element
B Compound
C Atom
D Molecule

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