Chemistry ISCGE Question Group 3

What is the composition of Stainless Steel

• Iron(56%), Chromium(10%), Nickel(12%) Carbon(22%)

• Iron(73%), Chromium(18%), Nickel(8%) Carbon(1%)

• Tin(63%), Chromium(28%), Nickel(10%) Lead(1%)

• Iron(83%), Lead(8%), Chromium(30%) Lead(1%)

What is the Special Properties Of Brass

• Shiny like silver

• Yellow color like gold

• Resistant to Precipitate,attractive silver color like metal

• Shiny like penny

What is the uses of Stainless Steel

• Joining Metal Object,Coins,Musical Instruments

• Decorative item,art instrument,coins

• Coins,Musical Instruments

• Medical instruments,Cutlery

How Much Copper contain In Pewter

• Copper(2%)

• Copper(2.5%)

• Copper(1.5%)

• Copper(1%)

What's the composition of All of the Alloy

• Brass:Tin(50%),

  Lead(50%)

  Stainless Steel:Tin(95%),Antimony(1.5%)

  Solder:Copper(70%),Zinc(30%)

  Pewter:Iron(73%),Chromium(18%),Nickel(8%)Carbon(1%)

• Brass:Copper(70%),Zinc(30%)

  Stainless Steel:Iron(73%),Chromium(18%),Nickel(8%)Carbon(1%)

  Solder:Tin(50%),Lead(50%)

  Pewter:Tin(95%),Antimony(1.5%)

• Brass:Copper(70%),Zinc(30%)

  Stainless Steel:Iron(73%),Chromium(18%),Nickel(8%)Carbon(1%)

  Solder:Tin(65%),Antimony(1.5%)

  Pewter:Tin(50%),Lead(50%)

• Brass:Tin(65%),Antimony(1.5%)

  Stainless Steel:Tin(50%),Lead(50%)

  Solder:Iron(73%),Chromium(18%),Nickel(8%)Carbon(1%)

  Pewter:Copper(70%),Zinc(30%)

Which of the following are not the reasons alloys are used?

• To make things harder and stronger

• To lower melting points of metals

• To make metals more resistant to corrosion

• To raise melting points of metals

What is the definition of an alloy?

• A mixture of metal and elements

• An element

• A mixture of elements

• A mixture of metals

Which of these metals are used to make coins?

• Brass

• Pewter

• Solder

• Cupronickel

Which of these items use brass?

• Trumpet

• Ornaments

• Electronic parts

• Circuit boards

Solder is ...

• An alloy of nickel and zinc

• An alloy of zinc and copper

• An alloy of tin and copper

• An alloy of tin and lead