What is a base class 7 ncert science
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Bases are substances that, in aqueous solution, are slippery to the touch and bitter in taste.
It turns red litmus paper to blue.
These substances are chemically basic in nature. Eg:- soap, ammonium hydroxide, calcium hydroxide, etc.
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Base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis).
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