Chemistry Group 15 Quiz

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Questions and Answers

What is the primary reason nitrogen behaves differently from other elements in Group 15?

It has the highest atomic mass.

It exists in a gaseous state. (correct)

It has the highest boiling point.

It has the lowest ionization energy.

What is formed when $PH_3$ reacts with HCl?

Phosphonium hydroxide

Phosphoric acid

Phosphonium chloride (correct)

Phosphonium nitrate

Which element in Group 15 has the highest electronegativity?

Phosphorus (P)

Arsenic (As)

Nitrogen (N) (correct)

Antimony (Sb)

What type of hydride is formed when arsenic reacts with hydrogen?

Arsenic hydride Signup and view all the answers

What is the product of the reaction between PCl3 and water?

Phosphorous acid Signup and view all the answers

Why does $NH_3$ have a higher boiling point than $PH_3$?

Because of hydrogen bonding. Signup and view all the answers

What is the boiling point of phosphorous trichloride (PCl3)?

347K Signup and view all the answers

What is produced when PCl5 reacts with water?

Phosphoric acid Signup and view all the answers

When elements of Group 15 react with oxygen, what compounds are primarily formed?

Trioxides and pentoxides Signup and view all the answers

Which of the following represents a reaction that produces phosphorous pentachloride?

P4 + 10Cl2 → 4PCl5 Signup and view all the answers

Which of the following reactions produces hydrogen fluoride?

2H2O + 2F2 → 4HF + O2 Signup and view all the answers

What is the electronic configuration of elements in group 18?

ns^2np^6 Signup and view all the answers

Which compound is formed when phosphorus reacts with bromine?

PBr5 Signup and view all the answers

Which of the following is NOT an element of group 18?

Bromine Signup and view all the answers

Which of these compounds represents an interhalogen molecule?

BrCl3 Signup and view all the answers

What is formed when sulphur reacts with oxygen?

Sulphur dioxide ($SO_2$) Signup and view all the answers

What is the boiling point of sulphur dioxide ($SO_2$)?

263K Signup and view all the answers

What compound is produced when $SO_2$ reacts with water?

Sulphurous acid ($H_2SO_3$) Signup and view all the answers

Which catalyst is used in the contact process for producing sulphuric acid?

Vanadium pentaoxide ($V_2O_5$) Signup and view all the answers

What is the product of the reaction between zinc and sulphuric acid ($H_2SO_4$)?

Zinc sulphate ($ZnSO_4$) Signup and view all the answers

What is the product formed when nitric acid reacts with carbon?

Carbon dioxide Signup and view all the answers

Which acid is produced when nitric acid reacts with sulphur?

Sulphuric acid Signup and view all the answers

What is the final product when phosphorous reacts with nitric acid?

Phosphoric acid Signup and view all the answers

Which of the following is a property of white phosphorus?

It is a waxy solid Signup and view all the answers

What is the chemical formula of hypophosphorous acid?

$H_3PO_2$ Signup and view all the answers

What gas is produced when phosphorous reacts with sodium hydroxide and water?

Phosphine Signup and view all the answers

Which of the following statements about red phosphorus is true?

It is odorless Signup and view all the answers

What is the result of zinc reacting with dilute nitric acid?

Zinc nitrate and water Signup and view all the answers

What is the common oxidation state of elements in group 17?

+7, -1 Signup and view all the answers

Which element in group 17 is a gas at room temperature?

Fluorine Signup and view all the answers

Which of the following elements in group 17 has the highest electronegativity?

Fluorine Signup and view all the answers

What happens when a metal of group 17 reacts with hydrogen?

A hydrogen halide is formed Signup and view all the answers

Which of the following statements about the acidic character of hydrogen halides is correct?

HI is stronger than HF Signup and view all the answers

Which element in group 17 is solid at room temperature?

Iodine Signup and view all the answers

In terms of atomic size and radius, what trend occurs as you move down group 17?

Atomic size increases Signup and view all the answers

Which statement regarding ionization energy of group 17 elements is true?

Ionization energy decreases down the group Signup and view all the answers

Study Notes

Inorganic Chemistry - Group 15

Group 15 elements (nitrogen family) include nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
General electronic configuration of group 15 elements is ns²np³.
Common oxidation states are +5 and -3.
Nitrogen exists as a diatomic gas (N₂).
Phosphorus exists as white, red, and black allotropes.
Arsenic, antimony, and bismuth are solids.
Density increases down the group.
Atomic size/atomic radius increases down the group.
Ionisation energy decreases down the group.
Metallic character increases down the group.
Electronegativity decreases down the group.

Inorganic Chemistry - Group 16

Group 16 elements are known as the oxygen family.
Elements include oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and polonium (Po).
General electronic configuration of group 16 elements is ns²np⁴.
Common oxidation states are +4, +6, and -2.
Oxygen is a diatomic gas (O₂).
Sulfur is a solid with several allotropes.
Selenium, tellurium, and polonium are solids.
Density increases down the group.
Atomic size/atomic radius increases down the group.
Ionisation energy decreases down the group.

Inorganic Chemistry - Group 17

Group 17 elements are called halogens.
Elements include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
General electronic configuration of group 17 elements is ns²np⁵.
Common oxidation states are +1, +3, +5, and +7.
Fluorine, chlorine, bromine, and iodine are non-metals.
Astatine is a radioactive element.
Density increases down the group.
Atomic size/atomic radius increases down the group.
Ionisation energy decreases down the group.
Metallic character increases down the group.
Electronegativity decreases down the group.

Inorganic Chemistry - Group 18

Group 18 elements are called noble gases.
Elements include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
General electronic configuration of group 18 elements is ns²np⁶.
Common oxidation state is zero.
Mostly monoatomic gases.
Density increases down the group.
Atomic size/atomic radius increases down the group.

General Inorganic Chemistry Concepts

Anomalous behavior of nitrogen: Nitrogen exhibits anomalous behavior due to its small size, high electronegativity, and strong tendency to form multiple bonds.
Hydrides: Elements in groups 15, 16, and 17 react with hydrogen to form hydrides with varying properties.
Oxides: Group 15, 16, and 17 elements combine with oxygen to form a variety of oxides with different oxidation states.
Halogens: Halogens react with many elements.
Interhalogens: Interhalogen compounds are formed when halogens combine with each other.

Additional Concepts

Oxidation states: The positive or negative charge that an atom can take is its oxidation state.
Allotropes: Different forms of an element in the same physical state.
Metallic character: The ability of an element to lose electrons and form positive ions.
Electronegativity: The tendency of an atom to attract electrons towards itself in a chemical bond.
Oxidation/reduction: Loss of electrons is oxidation; gain of electrons is reduction.

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Description

Test your knowledge on the behaviors and reactions of elements in Group 15 of the periodic table. This quiz covers topics such as electronegativity, boiling points, and reactions with water and hydrogen. Explore how nitrogen, phosphorus, arsenic, and their compounds interact in various chemical scenarios.