Question

What are acid & What are bases

Answer 1

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       Acid =>A chemical ,usually liquid contains HYDROGEN and has pH of less than seven.The HYDROGEN can be replaced by a metal to form a salt solution.They are usually sour and can harm and injurious .                             For Example:- Sulphuric Acid [H2SO4] 
      

Base=> A chemical substance that can combine with an acid to form a salt                solution.                                                                                  For Example:-ALKALI 

Answer 2

BASE- these are substance which combine with acid to form salt solution.
ACID - these are substance which have their ph value (power of hydrogen) lessthan 7.they are very corrosive in nature. but there are some which can be consumed such as acetic acid, oxalic acid,etc