Which of the following will release hydrogen gas upon reaction with hydrochloric acid?

Lithium nitrate and sodium nitrate,when heated separately,respectively,give

The alkali metals form salt-like hydrides by direct synthesis at elevated temperatures. The thermal stability of these hydrides decreases in which of the following orders?

Which of the following statements is incorrect?

As the atomic number increases,which of the following properties of alkali metals increases?

The hydration energy of $Mg^{2+}$ is larger than that of