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प्रश्न
Distinguish between acid and alkali (other than indicators).
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उत्तर १
An acid is that substance which gives H+ ions when dissolved in water.
An alkali is that substance which gives OH− ions when dissolved in water.
उत्तर २
Acids: Have a sour taste.
Alkalis: They have a Sharp bitter taste, and they are soapy to the touch.
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A basic oxide which is soluble in water.
Give one example in the following case:
A basic oxide which is insoluble in water.
Give one example in the following case:
An oxide which is a base.
Chemical formula of calcium oxide is _______
Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
Water-soluble bases are called ______.
The nature of toothpaste commonly used is ______ in nature.
NaOH & KOH are strong bases.
One of the events that does not occur during photosynthesis is ______.
