PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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15. Acid, bases and salts: choose the correct answer

1. What is the best way to dilute an acid?

We can add the acid fastly.
We can directly add the solvent to concentrated acid.
We should add the solvent slowly.
We can mix solvent and acid simultaneously.

2. Salt gives a brisk effervescence effect during a test. Which test do so?

Physical examinations
Flame test
Dry test
\(HCl\) test

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