| Answer | Crossword Clue |
|---|---|
| LITMUS | It turns blue in acid |
| litmus | blue coloring matter obtained from certain lichens, esp. Roccella tinctoria. In alkaline solution litmus turns blue, in acid solution, red: widely used as a chemical indicator |
| LITMUS | It turns red in acid |
| LITMUS | It turns blue in an alkali |
| BASE | It turns litmus blue |
| SORROW | It turns people blue |
| MOLD | It turns bread blue |
| ALKALI | It turns litmus blue |
| ALKALI | It turns litmus paper blue |
| BASE | It turns litmus paper blue |
| ALKALI | It turns red litmus paper blue |
