JAMB - Chemistry (1980 - No. 32)
Which of the following statement is false?
Acids react with some metals, liberating hydrogen
Acids react with carbonates, liberating carbondioxide
Acids conduct electricity and are decomposed by the current, liberating hydrogen at the anode
Acids have a sour taste
Acids change the colour of indicators
Wyjaśnienie
Thus, with a dilute solution of sulphuric acid and platinum electrodes, hydrogen gas is evolved at the cathode