Q.

Which of the following is a normal salt?


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a

NaH2PO2

b

NaH2PO3

c

NaH2PO4

d

Na3PO4 

answer is D.

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Detailed Solution

Concept- A salt is a chemical that is created when positive and negative charges are balanced. When an acid and a base interact, the neutralisation reaction takes place, producing salt and water. These salts are made up of ions. Salts can be acidic, basic, complex, or normal depending on the atomic makeup.
Salt is an ionic compound which is due to neutralisation of acid and base reaction. It has the same number of cations (+) and anions (-) charged particles which make it neutral in nature.
Normal salt is formed by complete replacement of hydrogen atoms from acidic compounds.
So here is only one option without hydrogen that is Na3PO4.
Hence, the correct option is (4).
 
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