Is sodium hydride a strong base?

Sodium hydride (NaH): The sodium salt of the conjugate base of H2; Na+ :H-. A strong base (H2 pKa 35). Despite its high basicity, NaH is not nucleophilic.

Is hydride ion a strong base?

The hydride ion in the saline hydrides is a strong base, and these hydrides react instantly and quantitatively with the hydrogen ion (H+) from water to produce hydrogen gas and the hydroxide ion in solution.

Is sodium hydride acidic or basic?

Complete answer: Sodium hydride reacts with water and produces sodium hydroxide. Sodium Hydroxide being a metal hydride is basic in nature and hence, the solution is also basic. In this reaction, sodium hydride deprotonate water, that is, it removes \[{{H}^{+}}\] and forms sodium hydroxide (base).

How does sodium react with hydrogen?

Pure sodium begins to absorb hydrogen appreciably at about 100 °C (212 °F); the rate of absorption increases with temperature. Pure sodium hydride can be formed at temperatures above 350 °C (660 °F) by exposing sodium to hydrogen gas at a high flow rate.

What happens when sodium reacts with hydrogen?

A colourless solution is formed, consisting of strongly alkalic sodium hydroxide (caustic soda) and hydrogen gas. This is an exothermic reaction.

Is hydride ion a strong conjugate acid of h2?

H- ion is a strong conjugate base of H2.

Which one of the following is the weakest acid?

Among the given acids, HCN has the lowest Ka value and therefore, it is the weakest acid.

Why is sodium hydroxide considered a strong base?

Strong bases are characterized by the fact that they dissociate completely in aqueous solution. In this case, sodium hydroxide, NaOH , is classified as a strong base because it dissociates completely in aqueous solution to form sodium cations, Na+ , and hydroxide anions, OH− .

Why is sodium hydride a strong base?

This reaction happens with a large equilibrium constant, so we can say that NaH almost completely dissociates when placed into an aqueous solution. This makes it a strong base.

Why is sodium so reactive?

Sodium (Na) is an alkali metal; it is shiny and soft with a single electron in its outermost shell. Alkali metals are highly reactive because they readily lose their outermost electron. Sodium combines with water in an explosive reaction.