Hydrolysis Of Salts

To determine which of the given compounds ‘X’ hydrolyzes to produce two products with one being a solid, we need to evaluate the hydrolysis reactions of each option.

1. : Phosphorus pentoxide ( ) reacts with water to form phosphoric acid ( ). This is shown in the reaction:

Both reactants and products are in the liquid or aqueous phase, so no solid forms.

2. : Fluorine ( ) reacts with water to form hydrogen fluoride ( ) and oxygen ( ):

Similarly, no solid forms; both products are gases or liquids.

3. : Silicon tetrachloride ( ) reacts with water to produce silicon dioxide ( ) and hydrochloric acid ( ). The reaction is:

Here, silicon dioxide ( ) is a solid product.

4. : The azide ion does not undergo a simple hydrolysis reaction to form one solid product and another distinct product, making it less likely.

Thus, among the given options, is the compound that upon hydrolysis yields a solid (silicon dioxide) and a second product, hydrochloric acid. Therefore, the correct answer is .