Advertisements
Advertisements
Question
How does the electrical conductivity of copper alloys, brass and bronze, differ from that of pure copper?
Solution
Alloys of copper, brass (alloy of copper and zinc) and bronze (alloy of copper and tin) are very poor conductors of electricity. However, copper is an excellent conductor of electricity; therefore, it is used in electrical wiring.
APPEARS IN
RELATED QUESTIONS
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
What is a thermite reaction? Explain with the help of an equation. State one use of this reaction.
Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.
Which of the following alloys contains mercury as one of the constituents?
(a) stainless steel
(b) solder
(c) duralumin
(d) zinc amalgam
Name a metal which is best conductor of electricity :
State two important uses of following metal
Uses of magnesium
Which of the following property is generally not shown by metals?
Metals are ______ conductors of heat and electricity.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
Metal atoms tend to have a maximum of ______ electrons in the outermost shell.