The hydride ion, $H^-$, is a stronger base than the hydroxide ion, $OH^-$. Which one of the following reactions will occur if sodium hydride (NaH) is dissolved in water?
- $\ce{H^{-} (aq) + H_2O(l) -> H_3O^{-} (aq)}$
- $\ce{H^{-} (aq) + H_2O(l) -> OH^{-} (aq) + H_2 (g)}$
- $\ce{H^{- } (aq) + H_2O(l) -> OH^{-} (aq) + 2H^{+} (aq) + 2e}$
- $\ce{H^{-} (aq) + H2O(l) ->}$ No reaction
The Correct Option is B
Solution and Explanation
Top Questions on hydrides
A group 15 element forms \( d\pi - d\pi \) bond with transition metals. It also forms a hydride, which is the strongest base among the hydrides of other group members that form \( d\pi - d\pi \) bonds. The atomic number of the element is …….
- Statement-I : Among \(15^{th}\) group hydrides reducing character decreases from
\(NH_3\) to \(BiH_3\).
Statement-II : \(E_2O_3\) and \(E_2O_5\) are always basic. [Where \(E\) is group \(15\) element] - What is the order of reducing character for \(AsH_3, NH_3, PH_3\) (group \(15\) hydrides)?
- Which hydride among the following is less stable?
- Bond dissociation energy of "E-H" bond of the " $H _2 E$ " hydrides of group $16$ elements (given below), follows order.
A. $O$ B. $S$ C. $Se$ D. $Te$
Choose the correct from the options given below:
Concepts Used:
Hydrides
The ones that are anions of a hydrogen atom are hydrides. Hydrogen can act or respond to different elements of the periodic desk. Nucleophilic, decreasing, and fundamental properties may be found in the interior of the chemicals of hydrogen, and hydride. Hydride compounds are devised with all factors of the periodic table, excluding a few noble gases. Hydrides are common compounds of hydrogen but with lesser electronegative elements.
Types of Hydrides:
Depending upon the evolution of a chemical bond and the elements that can act with the hydrogen atoms, there are three types of hydrides:
- Ionic Hydrides
- Covalent Hydrides
- Metallic or Interstitial Hydrides