Alloy

Q. Alloy is an example of ________ mixture.

1. solid-liquid
2. gas-gas
3. liquid-liquid
4. solid-solid

Q.

The metals zinc and tin are present in the alloy

1. Solder

2. Brass

3. Bronze

4. Duralumin

Q.

What is an alloy?

Q. Match the alloys with their constituent elements.

1. Copper and tin
2. Zinc and copper
3. Iron and carbon

Q. Brass is an alloy of copper and:

1. Iron
2. Aluminium
3. Bronze
4. Zinc

Q. What is stainless steel alloy consist of?

Q.

State whether the following sentence is true or false. Stainless steel is an alloy which has iron as major constituent.

1. True

2. False

Q. identify the correct pairs of alloys

1. Copper and Zinc
2. Copper and Tin
3. Aluminium and Copper

Q. If one of the metal is mercury, the alloy is known as:

1. potash alum
2. amalgam
3. solder
4. bronze

Q.

stainless steel can be classified as a ___ .

Q. Test hidden power of your brain and visual skills.

1. Steel
2. Copper and Zinc
3. Copper and Tin
4. Bronze
5. Iron and Carbon
6. Brass

Q. gold is the purest form of gold.

1. 22 Carat
2. 24 Carat
3. 26 Carat
4. 23 Carat

Q. Gold ornaments are made with metals like and to increase durability.

1. Sodium
2. Silver
3. Magnesium
4. Copper

Q.

Assertion:- An alloy of gold with copper or silver is used to make ornaments.

Reason:- Pure gold is soft due to which it cannot be not used to make ornaments.

1. Assertion:- False

   Reason:- False

2. Assertion:- True

   Reason:- True

   Reason is the correct explanation of assertion

3. Assertion:- True

   Reason:- False

   Reason is not the correct explanation of assertion

4. Assertion:- False

   Reason:- True

Q. Which of the following are the examples of alloys?

1. Brass
2. Argon
3. Iron
4. Steel

Q. Match the alloys with their constituent elements:

1. Copper & Tin
2. Copper & Zinc
3. Lead & Tin

Q. The mixture of two or more metals is called a/an ________.

1. metalloid
2. alloy
3. non-metal
4. compound

Q.

22-carat gold is preferred over 24-carat gold for making gold ornaments.

1. True

2. False