1. ACID AND BASES

3. ACIDS Acids are sour in taste Acids are sour in taste Present in fruit, vegetables and human body as well as obtained from the earth Present in fruit, vegetables and human body as well as obtained from the earth Acids produce proton in aqueous solution Acids produce proton in aqueous solution Acids accepts the electrons Acids accepts the electrons

4. BASES Bases have bitter taste Bases have bitter taste Accept proton Accept proton Donate the pair of electron Donate the pair of electron

5. Chemical reactions of acid and bases Acids reacts with bases to form salt and water Acids reacts with bases to form salt and water HCl+NaOH NaCl+H 2 O HCl+NaOH NaCl+H 2 O Acids reacts with metallic carbonate to form carbon dioxide and water Acids reacts with metallic carbonate to form carbon dioxide and water HCl+CaCO 3 CaCl 2 +H 2 O+CO 2 HCl+CaCO 3 CaCl 2 +H 2 O+CO 2

6. WHAT IS pH pH is the concentration of hydrogen ion and hydroxide ion in aqueous solution pH is the concentration of hydrogen ion and hydroxide ion in aqueous solution Its values varies from 0-14 Its values varies from 0-14 Values below the 7 shows the strong acids and values above the 7 shows the basic character of compound Values below the 7 shows the strong acids and values above the 7 shows the basic character of compound 7 shows the neutral character of compound 7 shows the neutral character of compound