1.

In Lassaigne's test, the organic compoundis first fused with sodium metal. The sodium is used because.

Answer»

The MELTING point of sodium metal is low
sodium metal reacts with elementspresent in organic compounds to form INORGANIC compounds.
All sodium salts are solubleiin WATER
All sodium salts are soluble in water

Solution :(a) and (b) and (C ) are TRUE because sodium has weak metallicbond due to larger size, as well as ionisation enery. Sodium salts are soluble in water because hydration energy dominatesover latticenergy. It follows that (d ) is incorrect.


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