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प्रश्न
A student takes Na2CO3 powder in a test tube and pours some drops of acetic acid over it. He observes:
(A) no reaction in the test tube
(B) colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) white fumes with smell of vinegar
उत्तर
Acetic acid reacts with Na2CO3 to form sodium acetate, carbon dioxide and water. It is this colourless gas carbon dioxide gas which comes out as bubbles.
The Correct Answer is C
संबंधित प्रश्न
Complete the following chemical equations: C2H5OH+O2→
Give the common names and IUPAC names of the following compounds of CH3COOH.
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
Give any two uses of ethanoic acid.
What do you notice when acetic acid reacts with alcohol?
What do you observe when acetic acid is added to sodium bicarbonate?
On adding 2 mL acetic acid to 2 mL of water in a test tube, it was observed that
(A) a clear and transparent solution is formed
(B) a white precipitate is formed almost immediately
(C) two separate layers were formed
(D) a colourless and odourless gas is evolved
Rewrite the following statement by selecting the correct option.
The formula of ethanoic acid is _____________.
CH3–CH2–CHO : propanal : : CH3–COOH : _______
