Question: Mixture of two metals is called:

• 1. Substance
• 2. Alloy
• 3. Metal
• 4. Non-Metal

Question: How many carats is the best gold?

• 1. 18 Carat
• 2. 20 Carat
• 3. 24 Carat
• 4. 28 Carat

Question: The magnet made by the iron are temporary magnets while the magnet made by ________ are permanent magnets.

• 1. Silver
• 2. Copper
• 3. Steel
• 4. Nickel

Question: Which of the following is a non-magnetic material?

• 1. Cobalt
• 2. Iron
• 3. Copper
• 4. Nickel

Question: The worm with unsegmented body includes:

• 1. Earthworm
• 2. Tapeworm
• 3. Flatworm
• 4. All of these

Question: The distance covered by wave in one second is called:

• 1. Velocity of Wave
• 2. Trough of Wave
• 3. Time period of Wave
• 4. Amplitude of Wave

Question: Brass is an alloy of:

• 1. Zinc and copper
• 2. Zinc and iron
• 3. Copper and gold
• 4. Zinc and gold

Question: 1st period of documents in periodic table consist of only:

• 1. Hydrogen
• 2. Hydrogen & oxygen
• 3. Hydrogen and helium
• 4. Hydrogen and nitrogen

Question: How many main types of steel?

• 1. One
• 2. Two
• 3. Three
• 4. Four

Question: Heavy water is the oxide of:

• 1. Tritium
• 2. Pretium
• 3. Deuterium
• 4. none