Question

distinguish between nacl and namo3

Answer 1

one of them is ionic and other is covalent compound

Answer 2

◼◼ANSWER.. ◼◼

The Salts given are both white crystalline in nature. So, to distinguish which is chloride or nitrate salt of sodium

Take two test tubes and perform the following tests :--

TEST 1:----

▶On adding an Sulphuric acid to these salts as a non volatile acid it will displace a volatile acid with it .

EQUATION :-

In Test tube A:-

⚫$2NaNO_3 + H_2SO_4 \longrightarrow Na_2SO_4 +2HNO_3.$

⚛Provided the temperature is less than

200 degrees.

In Test tube B:-

⚫$2NaCl + H_2SO_4\longrightarrow Na_2SO_4 +2HNO_3$

◽IDENTIFICATION ◽

✳When a glass rod dipped in NH4OH (ammonium hydroxide ) is brought near to test tube A there is no change.

✳While when it's brought near to test tube B dense white fumes of Ammonium chloride (NH4Cl)are formed.

◼Dense white fumes will be formed by Cl-1 radical so the given salt should have been NaCl. Hence, the test tube B have NaCl.

TEST 2:---

▶On adding solution of silver nitrate in both of the test tubes .

EQUATIONS :-

In Test tube A:-

No reaction takes place.

In test tube B:-

$4NaCl +2AgNO_3 \longrightarrow2NaNO_3 + 2AgCl$

◽IDENTIFICATION ◽

There is no change in the test tube A which can only happen when the negative radicals are same . While in test B a white precipitate of AgCl is formed. Which confirms Chloride radical in test tube B.

Therefore, from above two tests we conclused that

⚪Test tube B has chloride radical so, test tube B has sodium chloride

⚪Test tube A has nitrate radical which means it has sodium nitrate.