Addition of mineral acid to an aqueous solution of Borax,the following compound is formed:

How would you explain the lower atomic radius of $Ga$ as compared to $Al$?

When metal $X$ is treated with sodium hydroxide,a white precipitate $(A)$ is obtained,which is soluble in excess of $NaOH$ to give soluble complex $(B)$. Compound $(A)$ is soluble in dilute $HCl$ to form compound $(C)$. The compound $(A)$ when heated strongly gives $(D)$,which is used to extract metal. Identify $(X), (A), (B), (C)$ and $(D)$. Write suitable equations to support their identities.

What is the product formed by the action of caustic soda on aluminum hydroxide?

Which of the following compounds is electron-deficient?

The acidic strength of boron trihalides follows the order: