Question

Lead sulphate is soluble.
A.In concentrated nitric acid.
B.In concentrated hydrochloric acid.
C.In solution of ammonium acetate.
D.In water.

Answer 1

Hint: We know that the ammonium acetate \[\left( {{C}_{2}}{{H}_{7}}N{{O}_{2}} \right)\]appears in the form of a crystalline white solid with a slight acetous odour. This ammonium salt is derived from the reaction of ammonia and acetic acid. The chemical name of this salt is Ammonium Acetate while it is even known as the spirit of Mindererus in the aqueous form.

Complete answer:
Double displacement reactions are also called exchange reactions or metathesis reactions. It takes place when parts of two ionic compounds are exchanged, making two new compounds. The overall pattern of the double displacement reaction. This reaction generally takes place in aqueous medium and the react and products produced are usually the ionic compounds. Here, in this question, the reaction undergoes
Lead sulphate is soluble in a solution of ammonium acetate since the reaction:
\[Pb{{\left( S{{O}_{4}} \right)}_{2}}\xrightarrow{Ammonium\text{ }Acetate}\text{ }Lead\text{ }Acetate+Ammonium\text{ }Sulphate.\]
Ammonium acetate is used in combination with wholly distilled water for making a kind of protein precipitating reagent. The compound even serves in the form of a buffer for ESI or electrospray ionization mass spectrometry of molecules and proteins and the form of a mobile phase for high-performance liquid chromatography. Quite rarely though, ammonium acetate is even used in the form of a biodegradable de-icing agent. It even works best when used as a diuretic. Ammonium acetate tends to be unstable at low pressure, and this is why it is used for substituting cell buffers with different non-explosive salts in the preparation of mass spectrometry samples.
Therefore, the correct answer is option C.

Note:
Remember that it should be noted that neutralization reactions are a type of double replacement reaction that occurs between an acid and a base. An aqueous neutralization reaction generally produces water and a new ionic compound which is also called salt.