Railway Science PYP · General Awareness
Railway Science PYP Lab Knowledge Questions with Answers and Solutions
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Railway Science PYP Lab Knowledge practice
| Column A | Column B |
|---|---|
| A. Litmus paper | To detect acidic or basic nature |
| B. Watch-glass | To place drops of test solutions |
| C. Test tube | To hold and mix solutions safely |
| D. Indicator solution | Shows colour change to identify acid or base |
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