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प्रश्न
When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation?
(A) No reaction takes place
(B) A colourless gas with pungent smell is released with brisk effervescence
(C) A brown coloured gas is released with brisk effervescence
(D) Formation of bubbles of a colourless and odourless gas
उत्तर
When a few drops of acetic acid added to a test-tube containing sodium bicarbonate powder its leads to the formation of sodium acetate along with release of carbon dioxide gas, which is colourless and odourless gas. Both solid sodium bicarbonate and its aqueous solution will react with acetic acid.
Following is the chemical equation for the reaction:
CH3COOH + NaHCO3 → CH3COONa + CO2 + H2O
Hence, the correct answer is Formation of bubbles of a colourless and odourless gas
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संबंधित प्रश्न
When you add about 2 ml of acetic acid to a test tube containing an equal amount of distilled water and leave the test tube to settle after shaking its contents, what will you observe in the test tube after about 5 minutes?
(A) A white precipitate settling at its bottom
(B) A clear colourless solution
(C) A layer of water over the layer of acetic acid
(D) A layer of acetic acid over the layer of water
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An alkane with a carbon to carbon single bond.
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