ALLOYS Everyday Science One Liner MCQs

ALLOYS Everyday Science One Liner MCQs

• Bronze is the mixture of Copper and tin.
• Brass is an alloy of Copper and Zinc
• Bronze is an alloy of copper and Tin
• Stainless steel is an alloy of carbon +Iron with Chromium and Nickel
• German silver is an alloy of copper with nickel and zinc
• Solder is an alloy of lead and tin
• Dental amalgam = mercury +silver, Tin, Zinc, Copper
• Duralumin = aluminium + copper + magnesium
• Pewter is an ancient alloy made of tin and lead
• Aluminum is used mostly in aircrafts
• Camphor exhibits the property of sublimation.
• The alloy which consists of copper and tin.Bronze
• Excessive use of fertilizers causes death of pants due to exomosis.
• Stainless steel => Carbon + Iron + Chromium + Nickel.
• Bronze does not rust.
• Dental Amalgem => mercury + Silver, Tin, Zinc, Copper.
• Duralumin => aluminum+Copper+magnesium.
• Brass => Copper + Zinc.
• Pewter => an ancient alloy made up to tin and lead.
• Aluminum is used mostly in aircrafts.
• Australia has the largest bauxite deposits.
• Aluminum metal is obtained from aluminia by electrolysis – passing electricity through it. This process was discovered independently in 1886 by Charles Hall in the USA and Paul Heroult in France.
• Asbestos does not burn and it is a mineral fiber
• Amalgam is a mixture of metal and mercury
• Nickel is used as a catalyst while manufacturing ghee
• After persistent decay, radium would be finally changed into Lead.
• Mercury is a liquid with greatest density
• Noble metal are non-reactive metals example Gold, Silver and Platinum
• Mica is an excellent insulator
• Purest form of iron is wrought iron
• Cast iron has highest carbon content
• Sodium, potassium and magnesium are reactive metals
• Sodium burns in water not in kerosene
• Conductivity level___1)silver, 2)copper, 3)aluminum, 4)iron
• PVC = Ployvenyl Chloride
• First synthetic materials was Celluloid in 1868
• Second synthetic material by Bakelite invented by Leo Hendricks Backland
• Largely limestone is used in the production of cement
• Granite can be found in igneous rocks.
• Coal and petroleum are found in Sedimentary rocks
• Gold and copper are mostly found in old Igneous rocks
• Magnesium is abundant in sea
• Sources of uranium in Pakistan is Dera Ghazi Khan
• What type of acid is used in car batteries Sulphuric
• Copper can be converted into gold by: Artificial radioactivity
• Tungsten has the highest melting point = 3410 deg: C
• The coil used in a heater is made of Nichron