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प्रश्न
In acidic solutions blue litmus changes into ______ colour.
विकल्प
blue
green
red
white
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उत्तर
In acidic solutions, blue litmus changes into red colour.
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संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
One of the following is a medicine for indigestion. This is:
(a) sodium hydroxide
(b) manganese hydroxide
(c) magnesium hydroxide
(d) potassium hydroxide
One of the following salts will give an alkaline solution on dissolving in water. This is:
a) Na2CO3
(b) Na2SO4
(c) NaCl
(d) (NH4)2 SO4
What do you understand by the term, acid?
what effect does the concentration of [H3O+] ion have on solution?
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
Define Acid.
Most of the acids are not soluble in water.
Select an oxide which dissolves in water forming an acid.
Consider the acidity of the carboxylic acids:
(1) PhCOOH
(2) o-NO2C6H4COOH
(3) p-NO2C6H4COOH
(4) m-NO2C6H4COOH
