ALLOY

what is alloy?

• An alloy is a mixture of metals or a mixture of a metal and another element.
• A form of plastic
• A chemical compound
• A type of pure metal

which one is not an alloy?

• Gold
• Brass
• Steel
• Bronze

whay is the mixture of duralumin?

• Duralumin is a pure form of aluminum.
• Duralumin is a mixture of aluminum and copper, with small amounts of other elements.
• Duralumin consists of magnesium and zinc.
• Duralumin is made of iron and nickel.

what is the use of steel?

• Steel is used for construction, manufacturing, and tools due to its strength and durability.
• Steel is used for making paper and textiles.
• Steel is primarily used for cooking utensils.
• Steel is mainly used in the fashion industry.

what is the mixture of brass?

• Brass is a combination of silver and gold.
• Brass consists of lead and tin.
• Brass is a mixture of copper and zinc.
• Brass is made of iron and aluminum.

what is the use of pewter?

• Pewter is used for making decorative items, tableware, and jewelry.
• Pewter is exclusively used for making clothing.
• Pewter is mainly used in electronic devices.
• Pewter is primarily used for construction materials.

what is the special characteristic of duralumin?

• Low thermal conductivity.
• High corrosion resistance.
• Brittle at high temperatures.
• High strength-to-weight ratio and light

what is the example of alloy used to make coins?

• Steel
• Aluminum
• Bronze
• Brass

what is isotope?

• An isotope is a molecule that contains multiple elements combined together.
• An isotope is a type of chemical bond between two elements.
• An isotope is the atom of an element with the same number of protons but different numbers of neutrons.

• An isotope is an element with the same number of neutrons but different protons.

which one of the following is a molecule?

• Na+ (sodium ion)
• C6H12O6 (glucose)
• H2O (water molecule)
• Cl- (chloride ion)