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Across: 3. Chemical substance which indicates the acidic or basic nature of a solution by suitable colour change 7. A substance that releases hydroxide ions when dissolved in water. 10. Substances obtained from plants and used as indicators. 11. Acids which occur naturally in fruits and vegetables. 13. Wasp sting contains 14. The most common indicatorz used in the laboratories 15. Dissolved in hot water & its filtrate is used as an medicine
Down: 1. A substance which contains one or more replaceable hydrogen atoms. 2. Acids produced artificially in industries. 4. A colourless compound 5. Reaction between an acid and a base which produces water and salt. 6. Artificially produced indicators . 8. Artificially produced indicators . 9. A acid known as king of chemicals 12. Acids which react with metallic oxides to form respective metallic salts and water.