The electrical conductivity and melting point | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) An alloy is a homogeneous mixture of two or more metals or a metal and a non-metal.When an alloy is formed,the regular arrangement of atoms in the

Vedclass · Accepted Answer

Less than that of pure metal.

Vedclass · Answer

(D) An alloy is a homogeneous mixture of two or more metals or a metal and a non-metal.When an alloy is formed,the regular arrangement of atoms in the pure metal lattice is disrupted by the addition of other atoms.This disruption hinders the movement of free electrons,which are responsible for electrical conduction,thereby decreasing the electrical conductivity compared to the pure metal.Additionally,the presence of foreign atoms creates lattice distortions that require more energy to overcome during the phase transition from solid to liquid,which typically results in a lower melting point compared to the pure metal (though this can vary,the general property of alloys is lower conductivity and lower melting point than the base metal).

The electrical conductivity and melting point of an alloy is:

Similar Questions

Which metal is available in the highest proportion on the earth's crust?

Which process is used to convert sulphide ores into oxides by heating them in the presence of excess air?

Dolomite is an ore of which metal?

Compound $X$ and aluminium are used to join railway tracks.
$(a)$ Identify the compound $X$.
$(b)$ Name the reaction.
$(c)$ Write down its chemical reaction.

Write chemical equations for the reactions taking place when:
$(i)$ Iron reacts with steam.
$(ii)$ Magnesium $(Mg)$ reacts with dilute $HCl$.
$(iii)$ Copper is heated in air.

Vedclass Test Series

Exam Paper Generator

Online Exam Module