18 Questions
What defines an alloy?
Homogeneous mixture of metals with random atom distribution
Why are alloys formed by transition metals readily?
They have similar metallic radii
What is disproportionation in terms of oxidation states?
Simultaneous oxidation and reduction of an element
Which elements are commonly used in ferrous alloys?
Chromium, vanadium, tungsten, and manganese
What are the main components of brass alloy?
Copper and tin
How is the stability of the Cu ion affected in aqueous solutions?
Decreased stability compared to solid copper
Which of the following best describes the difference between the chemistry of actinoids and lanthanoids?
Actinoids exhibit more diverse oxidation states than lanthanoids.
What is the last element in the actinoid series?
Lawrencium
Why is the chemistry of the actinoid elements said to be less smooth than that of the lanthanoids?
Actinoids show greater tendency for disproportionation reactions.
Which member of the lanthanoid series exhibits both +2 and +4 oxidation states?
Cerium
What is a common application of bronze alloy?
Sculptures and statues
Which transition metal exhibits the most stable +1 oxidation state in aqueous solutions?
Copper
Which of the following best explains the disproportionation reaction of copper(I) ion in aqueous solution?
2Cu⁺(aq) → Cu²⁺(aq) + Cu(s)
Which of the following transition metal compounds is used as a catalyst in the Haber process for ammonia production?
Iron compounds
What is the primary reason for the lanthanoid contraction being more significant than the actinoid contraction?
The chemistry of elements succeeding the actinoids is less known at present.
Which of the following oxides is commonly used as a pigment in the industry?
Titanium(IV) oxide
Which of the following alloys is commonly referred to as 'bronze'?
Copper-tin alloy
Which of the following oxoanions is used in dry battery cells?
Manganese(IV) oxide (MnO₂)
Learn about alloy formation, a blend of metals created by mixing components. Discover how homogeneous solid solutions are formed by transition metals with similar radii. Explore the properties of alloys, including metallic conductivity and chemical inertness.
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