A student added acetic acid to test tubes I, II, III and IV containing

1.	A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube. The splinter would be extinguished when brought near the mouth of test tube:
Answer» A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube. The splinter would be extinguished when brought near the mouth of test tube:

A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube. The splinter would be extinguished when brought near the mouth of test tube:

Answer»

A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube.

The splinter would be extinguished when brought near the mouth of test tube:

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A student added acetic acid to test tubes I, II, III and IV containing the labeled substance and then brought a burning splinter near the mouth of each test tube. The splinter would be extinguished when brought near the mouth of test tube:

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