Inorganic Chemistry Study Resources for Competitive Exams

Inorganic Chemistry

Acids, Bases and Salts Acids, Bases and Salts - Advanced Concepts Acids, Bases and Salts - Applications Acids, Bases and Salts - Case Studies Acids, Bases and Salts - Competitive Exam Level Acids, Bases and Salts - Higher Difficulty Problems Acids, Bases and Salts - Numerical Applications Acids, Bases and Salts - Problem Set Acids, Bases and Salts - Real World Applications General Principles of Metallurgy General Principles of Metallurgy - Advanced Concepts General Principles of Metallurgy - Applications General Principles of Metallurgy - Case Studies General Principles of Metallurgy - Competitive Exam Level General Principles of Metallurgy - Higher Difficulty Problems General Principles of Metallurgy - Numerical Applications General Principles of Metallurgy - Problem Set General Principles of Metallurgy - Real World Applications Hydrogen and its Compounds Hydrogen and its Compounds - Advanced Concepts Hydrogen and its Compounds - Applications Hydrogen and its Compounds - Case Studies Hydrogen and its Compounds - Competitive Exam Level Hydrogen and its Compounds - Higher Difficulty Problems Hydrogen and its Compounds - Numerical Applications Hydrogen and its Compounds - Problem Set Hydrogen and its Compounds - Real World Applications Periodic Table and Periodicity Periodic Table and Periodicity - Advanced Concepts Periodic Table and Periodicity - Applications Periodic Table and Periodicity - Case Studies Periodic Table and Periodicity - Competitive Exam Level Periodic Table and Periodicity - Higher Difficulty Problems Periodic Table and Periodicity - Numerical Applications Periodic Table and Periodicity - Problem Set Periodic Table and Periodicity - Real World Applications Transition Elements and Coordination Chemistry Basics Transition Elements and Coordination Chemistry Basics - Advanced Concepts Transition Elements and Coordination Chemistry Basics - Applications Transition Elements and Coordination Chemistry Basics - Case Studies Transition Elements and Coordination Chemistry Basics - Competitive Exam Level Transition Elements and Coordination Chemistry Basics - Higher Difficulty Problems Transition Elements and Coordination Chemistry Basics - Numerical Applications Transition Elements and Coordination Chemistry Basics - Problem Set Transition Elements and Coordination Chemistry Basics - Real World Applications

Q. Which of the following metals is most likely to form a complex ion with a coordination number of 6?

A. Copper
B. Iron
C. Zinc
D. Nickel

Solution

Iron commonly forms octahedral complexes with a coordination number of 6 due to its ability to accommodate six ligands.

Correct Answer: B — Iron

Q. Which of the following metals is most likely to undergo oxidation in a redox reaction?

A. Gold
B. Platinum
C. Silver
D. Sodium

Solution

Sodium is highly reactive and readily undergoes oxidation due to its low ionization energy.

Correct Answer: D — Sodium

Q. Which of the following metals is most likely to undergo oxidation?

A. Gold
B. Platinum
C. Sodium
D. Copper

Solution

Sodium is highly reactive and readily loses an electron, making it likely to undergo oxidation.

Correct Answer: C — Sodium

Q. Which of the following metals is most likely to undergo reduction in a redox reaction?

A. Aluminum
B. Gold
C. Iron
D. Zinc

Solution

Gold is less reactive and more likely to be reduced compared to the other metals listed.

Correct Answer: B — Gold

Q. Which of the following metals is typically obtained from its ore using the hydrometallurgical process?

A. Gold
B. Iron
C. Lead
D. Nickel

Solution

Gold is often extracted using hydrometallurgical methods such as cyanidation.

Correct Answer: A — Gold

Q. Which of the following processes is used to concentrate ores?

A. Electrolysis
B. Leaching
C. Roasting
D. Smelting

Solution

Leaching is a process used to concentrate ores by dissolving the desired metal into a solution.

Correct Answer: B — Leaching

Q. Which of the following reactions is an example of a redox reaction involving hydrogen?

A. H2 + O2 → H2O
B. HCl + NaOH → NaCl + H2O
C. H2 + Cl2 → 2HCl
D. H2 + CO2 → H2O + C

Solution

The reaction H2 + O2 → H2O involves the oxidation of hydrogen and reduction of oxygen, making it a redox reaction.

Correct Answer: A — H2 + O2 → H2O

Q. Which of the following salts is commonly used as a de-icing agent on roads?

A. Sodium chloride
B. Calcium carbonate
C. Potassium nitrate
D. Magnesium sulfate

Solution

Sodium chloride is widely used as a de-icing agent due to its effectiveness in lowering the freezing point of water.

Correct Answer: A — Sodium chloride

Q. Which of the following salts is commonly used as a food preservative?

A. Sodium chloride
B. Potassium nitrate
C. Calcium sulfate
D. Magnesium sulfate

Solution

Sodium chloride, or table salt, is widely used as a preservative in various food products.

Correct Answer: A — Sodium chloride

Q. Which of the following salts is formed from a strong acid and a weak base?

A. NaCl
B. NH4Cl
C. K2SO4
D. CaCO3

Solution

NH4Cl is formed from the strong acid HCl and the weak base NH3.

Correct Answer: B — NH4Cl

Q. Which of the following statements about coordination compounds is true?

A. They always have a positive charge
B. They consist of a central metal atom and ligands
C. They cannot form isomers
D. They are always soluble in water

Solution

Coordination compounds consist of a central metal atom bonded to one or more ligands, which can be neutral or charged.

Correct Answer: B — They consist of a central metal atom and ligands

Q. Which of the following statements about hydrogen bonding is true?

A. It occurs only in organic compounds
B. It is a strong ionic interaction
C. It involves hydrogen and electronegative atoms
D. It is the strongest type of bond

Solution

Hydrogen bonding occurs when hydrogen is covalently bonded to an electronegative atom, such as oxygen or nitrogen.

Correct Answer: C — It involves hydrogen and electronegative atoms

Q. Which of the following statements about hydrogen is true?

A. It is a metal
B. It has the highest electronegativity
C. It can form cations
D. It is always diatomic

Solution

Hydrogen can form cations (H+) in reactions, especially in acid-base chemistry.

Correct Answer: C — It can form cations

Q. Which of the following statements about transition metals is true?

A. They have completely filled d-orbitals.
B. They can form colored compounds.
C. They do not form complexes.
D. They have low melting points.

Solution

Transition metals can form colored compounds due to d-d electronic transitions.

Correct Answer: B — They can form colored compounds.

Q. Which of the following transition metals has the highest melting point?

A. Iron
B. Tungsten
C. Nickel
D. Copper

Solution

Tungsten has the highest melting point among transition metals, at 3422 °C.

Correct Answer: B — Tungsten

Q. Which of the following transition metals is commonly used as a catalyst in the Haber process for ammonia synthesis?

A. Iron
B. Copper
C. Nickel
D. Cobalt

Solution

Iron is used as a catalyst in the Haber process to synthesize ammonia from nitrogen and hydrogen.

Correct Answer: A — Iron

Q. Which of the following transition metals is known for forming a complex with a coordination number of 6?

A. Fe
B. Cu
C. Ag
D. Zn

Solution

Iron (Fe) commonly forms octahedral complexes with a coordination number of 6.

Correct Answer: A — Fe

Q. Which of the following transition metals is known for its ability to form stable complexes with ligands?

A. Zinc
B. Copper
C. Iron
D. Nickel

Solution

Nickel is known for its ability to form stable complexes with various ligands.

Correct Answer: D — Nickel

Q. Which of the following transition metals is most commonly associated with the formation of colored compounds?

A. Calcium
B. Sodium
C. Iron
D. Barium

Solution

Iron is a transition metal that is commonly associated with the formation of colored compounds due to its variable oxidation states.

Correct Answer: C — Iron

Q. Which of the following transition metals is most commonly used in catalysis?

A. Ti
B. Fe
C. Ni
D. Co

Solution

Iron (Fe) is widely used as a catalyst in various industrial processes, including the Haber process.

Correct Answer: B — Fe

Q. Which of the following transition metals is most commonly used in metallurgy for its catalytic properties?

A. Copper
B. Iron
C. Nickel
D. Platinum

Solution

Platinum is widely used in metallurgy for its excellent catalytic properties.

Correct Answer: D — Platinum

Q. Which of the following trends is observed in the periodic table as you move from left to right across a period?

A. Decreasing ionization energy
B. Increasing atomic radius
C. Increasing electronegativity
D. Decreasing electron affinity

Solution

As you move from left to right across a period, electronegativity generally increases due to the increasing nuclear charge.

Correct Answer: C — Increasing electronegativity

Q. Which transition metal is known for its ability to form complex ions with a variety of ligands and is used in biological systems?

A. Zinc
B. Iron
C. Copper
D. Manganese

Solution

Copper is known for its ability to form complex ions and plays a crucial role in biological systems, such as in hemocyanin.

Correct Answer: C — Copper

Q. Which type of bond is primarily responsible for the formation of ionic compounds?

A. Covalent bond
B. Ionic bond
C. Metallic bond
D. Hydrogen bond

Solution

Ionic bonds are formed through the electrostatic attraction between positively and negatively charged ions.

Correct Answer: B — Ionic bond

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