Solutions
If pH value is less than 7, nature is
acidic
basic
neutral
normal
acidic
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The ‘solvents’ which keep us alive includesA. air
B. water
C. oxygen
D. carbon
The solution which is commonly used for cooking, drinking, washing, bathing and cleaning, is
A. water
B. solvents
C. clay
D. fluids
Copper sulphate has solubility at 25 ยฐC in 100 g of water equal to
A. 22g
B. 20g
C. 12g
D. 44g
In manufacturing of food, drinks, textiles, soaps and detergents raw material is
A. water
B. crops
C. soil
D. oxygen
An important factor on which solubility depends, is the nature of
A. solvent
B. surface area
C. conditions
D. apparatus
The more accurate and quick measure of “pH” value is given by
A. indicator
B. pH scale
C. pH meter
D. universal indicator
Bacteria in our mouth are acidic which should be neutralized by
A. toothpaste
B. orange juice
C. vinegar
D. antacid
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