Question

diff between acid and base

Answer 1

Acids: Those substances which give H+ ions in aqueous solution, are called acids. They are sour in taste and turn blue litmus red.
Bases: Those substances which give OH- ions in aqueous solution , are called bases . They are bitter in taste and turn red litmus blue

Answer 2

ACID :
1) They are mostly colourless .
2) They are sour in taste .
3) They have corrosive action .
4) They turn blue litmus paper to red .
5) They conduct electricity .
6) They turn phenolphthalein colourless . 
7) They turn methyl orange to red .
BASE :
1) They are bitter in taste .
2) They have soapy touch .
3) They tuns red litmus paper to blue .
4) They also conduct electricity .
5) They turn the color of phenolphthalein to pink .
6) They turn methyl orange to yellow .