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D And F Block Elements > Common Facts > Flashcards

Common Facts Flashcards

1
Q

What are the two most important construction materials?

A

Iron and steels.

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2
Q

True or False: The production of iron and steel is based on the reduction of iron oxide

A

True.

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3
Q

Fill in the blank: Iron and steels are primarily used in _______.

A

construction.

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4
Q

What is the primary element used in the production of steel?

A

Iron.

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5
Q

Multiple Choice: Which of the following is NOT a property of steel? A) Ductility B) Brittleness C) Strength D) Conductivity

A

B) Brittleness.

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6
Q

True or False: Steel is an alloy primarily made of iron and carbon.

A

True.

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7
Q

What role does carbon play in steel?

A

It increases strength and hardness.

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8
Q

Fill in the blank: The main source of iron is _______.

A

iron ore.

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9
Q

Multiple Choice: Which type of iron has the highest carbon content? A) Cast Iron B) Wrought Iron C) Steel D) Pig Iron

A

D) Pig Iron.

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10
Q

What is the significance of the term ‘red’ in the context of iron production?

A

It refers to the red color of iron oxide.

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11
Q

True or False: Steel can be recycled indefinitely without losing its properties.

A

True.

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12
Q

Fill in the blank: The process of removing impurities from iron is called _______.

A

refining.

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13
Q

What is the main environmental concern associated with iron production?

A

Carbon emissions.

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14
Q

True or False: All forms of steel are magnetic.

A

False.

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15
Q

What is the impact of alloying elements on the properties of steel?

A

They modify strength, ductility, and corrosion resistance.

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16
Q

Multiple Choice: Which steel is known for its high resistance to corrosion? A) Carbon Steel B) Stainless Steel C) Tool Steel D) Alloy Steel

A

B) Stainless Steel.

17
Q

What is the main advantage of using steel in construction?

A

High strength-to-weight ratio.

18
Q

True or False: The production of steel is a highly energy-intensive process.

A

True.

19
Q

What is an example of a construction application for steel?

A

Structural frameworks for buildings.

20
Q

Multiple Choice: Which of the following is a disadvantage of using iron in construction? A) High strength B) Corrosion susceptibility C) Ductility D) Availability

A

B) Corrosion susceptibility.

21
Q

What is the relationship between iron and steel in construction materials?

A

Steel is an alloy derived from iron.

22
Q

What are the metals restricted to collection items in the UK?

A

Au and Ag

Au refers to gold and Ag refers to silver, which are not used in everyday currency.

23
Q

What material are contemporary UK ‘copper’ coins made from?

A

Copper-coated steel

This indicates that the coins are not made of pure copper.

24
Q

What is the composition of ‘silver’ UK coins?

A

Cu/Ni alloy

This means that the coins are made from a combination of copper and nickel.

25
Q

What role do many metals and their compounds play in the chemical industry?

A

Essential catalysts

Catalysts are substances that increase the rate of a chemical reaction without being consumed.

26
Q

What catalyst is used in the oxidation of SO2 in the manufacture of sulphuric acid?

A

V2O5

Vanadium pentoxide is a key catalyst in this process.

27
Q

What forms the basis of the Ziegler catalysts used to manufacture polyethylene?

A

TiCl4 with Al(CH3)3

This combination is crucial for the polymerization process in polyethylene production.

28
Q

What catalysts are used in the Haber process?

A

Iron catalysts

The Haber process synthesizes ammonia from nitrogen and hydrogen.

29
Q

What do nickel catalysts enable in the chemical process?

A

Hydrogenation of fats

This process is essential in the production of margarine and other fat products.

30
Q

What is catalysed by PdCl2 in the Wacker process?

A

Oxidation of ethyne to ethanal

This reaction is significant in organic chemistry for producing aldehydes.

31
Q

Nickel complexes are useful in the polymerisation of which compounds?

A

Alkynes and organic compounds such as benzene

This highlights the versatility of nickel complexes in organic synthesis.

32
Q

What compound is relied upon in the photographic industry for its light-sensitive properties?

A

AgBr

Silver bromide is a key component in traditional photography.

33
Q

What are the most important construction materials?

A

Iron and steels

Iron and steels are widely used due to their strength and versatility in construction.

34
Q

What is the primary process for the production of iron and steels?

A

Reduction of iron oxides, removal of impurities, addition of carbon and alloying metals

The production process involves several steps to enhance the properties of iron and steel.

35
Q

Name three alloying metals used in the production of iron and steels.

A
  • Cr (Chromium)
  • Mn (Manganese)
  • Ni (Nickel)

These alloying metals improve specific properties of the final material.

36
Q

What special compound is manufactured for the pigment industry?

A

TiO

Titanium dioxide (TiO2) is commonly used as a pigment due to its high opacity.

37
Q

Which compound is used in dry battery cells?

A

MnO2

Manganese dioxide (MnO2) serves as a cathode material in alkaline batteries.

38
Q

What elements are required by the battery industry?

A
  • Zn (Zinc)
  • Ni (Nickel)
  • Cd (Cadmium)

These elements are essential for the production of various types of batteries.

39
Q

True or False: The elements of Group 11 are referred to as coinage metals.

A

True

Group 11 elements, including copper, silver, and gold, are traditionally known as coinage metals due to their historical use in currency.

D And F Block Elements (3 decks)

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