Subject = Science (Acid ,Base and salt)
Class =7
How do acids differ from base?????
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1
Answer:
A substance, mostly liquid that donates a proton or accepts an electron pair in reactions. An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons
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Acids
Bases
(i)
These are sour to taste.
These are bitter to taste.
(ii)
Acids turn blue litmus red.
Bases do not change the colour of blue litmus.
(iii)
Acids do not change the colour of red litmus.
Bases turn red litmus blue.
(iv)
With china rose indicator, these give dark pink colour.
Bases give green colour with china rose indicator.
(v)
Acids do not change the colour of turmeric indicator.
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