Advertisements
Advertisements
Question
The property/properties which enable copper metal to be used for making electric wires is/are :
Options
copper metal is malleable and ductile
copper metal is a good conductor of electricity
copper metal is ductile and has low electrical resistance
copper metal is sonorous and an excellent conductor of electricity
Advertisements
Solution
copper metal is ductile and has low electrical resistance
Copper is a good conductor of electricity. It means that it offers very low electric resistance. Also, it is highly ductile due to which it can be drawn into very thin wires.
APPEARS IN
RELATED QUESTIONS
Name the terms for the change of vapour into a liquid.
What are the conditions for 'something' to be called 'matter'?
Name a liquid which can be classified as a pure substance and conducts electricity.
Name one element, one compound and one mixture.
The three important metalloids are.............................. and ..........................
Name a metal which forms amalgams.
What are the three general classes of matter ? Give one example of each type.
“Is malleable and ductile” best describes :
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
Define solute.
What is a suspension ? Give two examples of suspensions.
What type of magnet is fitted on a crane to separate scrap iron objects from a heap of waste materials in factories ?
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
How will you separate iron pins from sand ?
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
Name one pair of liquids which can be separated by using a separating funnel.
What's the solution?
We need to rub salt on a corncob, but only salt crystals are available.
Which of the following are homogeneous in nature?
(i) ice
(ii) wood
(iii) soil
(iv) air
Solids possess very high kinetic energy.
Define the term matter.
