Question

In the lead - silver system, at the eutectic point: *

Solid silver and solid lead co-exists

Solid lead & silver and liquid co exists

Solid silver and solid lead and vapour exist

All the above wrong​

Answer 1

Answer: This point lies at a temperature (303°C) which is lower than the melting point of silver as well as lead metal. The composition at this point is Ag (2.6%) and lead (97.4%). Therefore, the point O is called the eutectic point i.e. the lowest temperature at which the liquid melt can exist.

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