Here are a few statements related to alloys. (Identify the incorrect ones and correct them.
i) It is a homogenous mixture of metals.
ii) Zinc amalgam is used in dental filling.
iii) Duralumin is used for making statues, coins, bells and gongs.
iv) Alloys are produced by compressing finely divided metals one over the other.
v) Zinc is the solvent of brass.
Answers
The answer of your problem is as follows.
i) Yes,Alloy is a homogenous mixture of metals. Reason: Because by looking alloy you can not distinguish that where are the composition metals.
ii) No,Zinc amalgam is not used in dental filling. Reason: Silver amalgam is used for the same.
iii) No, Duralumin is not used for making statues, coins, bells and gongs.Reason: it is alloy of Aluminum and copper,mostly it is used for Aircraft Machinery and heavy duty machines.
iv) No,Alloys are not produced by compressing finely divided metals one over the other.
The process of making alloy is different.
v) Zinc is the solvent of brass:
not sure about this one.
Because Brass is an alloy of copper and zinc mostly,the composition mixture is almost same.so not sure about that zinc behaves like solute or solvent.
Hope you understand all these well.
Answer:
(1) Yes Alloy is a Homogeneous mixture of metals
Reason: Because by looking alloy you can not
distinguish that where are the composition metal.
(2) No, zinc amalgam is not used in dental filling
Reason: Silver amalgam is used for same.
(3) No, Duralumin is not used for making statues,
Coins, bells and gongs.
Reason:- It is alloy of Aluminum and copper,
mostly it is used for aircraft Machinery
and heavy duty machinery.
(4) No, Alloys are not produced by compressing
finely divided metals one over the other.
The process of making alloy is different.
(5) Zinc is solvent of brass.
Reason: Zinc has lower melting point.
(Brass- 45% to 55% zinc and 45% to 55% copper
∴ Less melting point is act as solvent and copper as solute. )
(A) An alloy is a mixture of various metals
that can also contain non-metals elements
Eg. Steal is an alloy of iron (metal) and
carbon (non-metal)