The following pictures represent binary hydrides,AH_x,where A = Na,Ti,C,or Cl.Lightly-shaded spheres represent H atoms or ions and darkly-colored spheres represent atoms or ions of element A.
-Which hydride reacts with water at 25°C to give H₂ gas and forms a basic solution?

Question

The following pictures represent binary hydrides,AH_x,where A = Na,Ti,C,or Cl.Lightly-shaded spheres represent H atoms or ions and darkly-colored spheres represent atoms or ions of element A.

The following pictures represent binary hydrides,AH<sub>x</sub>,where A = Na,Ti,C,or Cl.Lightly-shaded spheres represent H atoms or ions and darkly-colored spheres represent atoms or ions of element A. -Which hydride reacts with water at 25°C to give H<sub>2</sub> gas and forms a basic solution? A) hydride (1) B) hydride (2) C) hydride (3) D) hydride (4)

-Which hydride reacts with water at 25°C to give H₂ gas and forms a basic solution?

Quizplus · Accepted Answer

Hydride (3) contains the element Na, which is a highly reactive alkali metal. When this hydride reacts with water at 25°C, it forms HS1U1B12S1U1B0 gas and NaOH, which is a strong base, according to the following equation:

AHS1U1B1 + H2O → HS1U1B12S1U1B0 + AOH

Therefore, hydride (3) is the best choice for the given question.

The Following Pictures Represent Binary Hydrides,AHx,where a = Na,Ti,C,or Cl

The Following Pictures Represent Binary Hydrides,AH_x,where a = Na,Ti,C,or Cl