Acids, bases and salts!

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Across
  1. 3. acid present in citrus fruits
  2. 4. Gas released when acids react with metals
  3. 6. naturally obtained acids
  4. 8. natural indicator
  5. 9. water soluble bases
  6. 12. reaction between acid and a base
Down
  1. 1. synthetic indicator
  2. 2. aqueous solution of sodium chloride is called
  3. 5. acid present in tomatoes
  4. 7. common name of sodium hydroxide
  5. 10. taste of bases
  6. 11. acid present in ants