Question

Please answer with reason

Answer 1

Here's your answer! ❤

Answer is C

She Should avoid 1st and 2nd method because -

1. ✖ She should avoid tasting the solution, because If the solutions were of harsh nature they could harm Dhruti and can burn her mouth if she tasted them and the solutions are too unknown so they should not be tasted. For example, HCL is a harmful acid which can burn our skin.
2. ✔ Litmus can Identify solutions whether they are basic or acidic. so she could use it.
3. ✖ She should avoid touching the solutions, because if they were acidic and were of harsh nature they could harm Dhruti and can burn her hand if she touched them them and the solutions are too unknown so they should not be touched. For example - Battery acid is the one of the most harmful acid, if it is in one of the solutions and if it is touched it can harm.
4. ✔ She could use Turmeric solution to identify because Turmeric solution turns red when base is added and remains yellow when other nature soultions are added.

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