Question

Predict your observation if a magnesium ribbon is put in potassium hydroxide solution and tested with a wooden splinter.

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Answer 1

If a magnesium ribbon is put in potassium hydroxide solution and tested with a wooden splinter, visible bubbles of hydrogen gas will appear.

The results of the experiment

• When a metal reacts with an alkali solution, it produces hydrogen gas and salts.
• In the above statement, magnesium ribbon reacts with Potassium Hydroxide and produces audible popping bubbles.
• Potassium Hydroxide (KOH) is an alkali. It is an inorganic compound, also known as caustic potash.
• When they are reacted and tested with a wooden splinter, they produced H2 gas which is highly explosive.
• It appears as a spark during the experiment and bubbles appear on the surface.

Learn more about Alkali and metal reactions here:

Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid

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