Question

Hydrogen is passed over hot tungsten oxide what happens?

Answer 1

The symbol of tungsten is W.
Tungsten is also known as wolfram. It's atomic number is 74.it has the highest melting point.

Tungsten oxide is also known as tungsten trioxide or tungstic anhydride(WO3) . It is a chemical compound containing oxygen and the transition metal tungsten.

When Hydrogen is passed over hot tungsten oxide it produce tungsten metal and water.

WO3 + 3H2 → W + 3H2O.


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Hope this will help you...

Answer 2

We know that the hydrogen is a reducing agent so upon reacting with any metallic oxide it has capacity to reduce them in to simple metal . This is exactly what happen with the tungsten oxide. As the hydrogen passed over the tungston oxide , it reduce it in to the metal.
The reaction took place like that
WO3 + 3H2 ⇒ 3H20 + W
Hence the water and tungston metal will be our product.