Dry hydrogen when passed over heated metals like Na, K, and Ca, reacts to give their corresponding ______

Open in App

Solution

Dry Hydrogen $(H_{2})$ :
Dry hydrogen is simply Hydrogen gas that does not contain water vapour.
Most metals do not react with Hydrogen gas. but, the metal of group $1$ and $2$ generally reacts with dry Hydrogen to form its hydrides.
Calcium reacts with dry hydrogen to produce calcium hydride.
$\underset{Sodium}{2 Na} + \underset{dry Hydrogen}{H_{2}} \to \underset{Sodium hydride}{2 NaH}$
Calcium reacts with dry hydrogen to produce calcium hydride.
$\underset{Calcium}{Ca} + \underset{dry Hydrogen}{H_{2}} \to \underset{Calcium hydride}{{CaH}_{2}}$
So, Dry hydrogen when passed over heated metals like $Na, K, and Ca$ reacts to give their corresponding hydrides.

Suggest Corrections

Similar questions

Q. 1.12 litre dry chlorine at STP as passed over a heated metal when 5.56g of chloride of the metal was formed.what is the equivalent weight of the metal?

Give balanced equations when :
(a) ethene is burnt in excess of oxygen.
(b) ethene reacts with chlorine.
(c) ethene combines with hydrogen chloride.
(d) a mixture of ethene and hydrogen is passed over nickel at $200^{\circ} C$ .

Dry hydrogen when passed over a heated metals like Na, K and Ca, reacts to give their corresponding _______ .

When metals like Na, K, Ca react with acids like HCL , Hydrogen gas is evolved. Explain why no evolution of hydrogen gas takes place when the same metals react with HNO3.

When an acid reacts with a metal carbonate or metal hydrogen carbonate, it gives the corresponding salt, gas and product. Name the gas and product?

Join BYJU'S Learning Program