Question 1

The strongest elemental oxidizing agents are found in the _________ _________ region of the periodic table while the strongest reducing agents are found in the ________ ________ region of the periodic table.
A)upper left,lower right
B)upper right,lower left
C)lower left,upper right
D)lower right,upper left
E)transition element,main group

Accepted Answer

The strongest elemental oxidizing agents are found in the upper right region of the periodic table (excluding the noble gases), as these elements have high electronegativities and a strong tendency to gain electrons. Conversely, the strongest reducing agents are found in the lower left region of the periodic table, where elements have low electronegativities and a strong tendency to lose electrons.

Question 2

The nitrate anion is
A)a strong acid.
B)a strong base.
C)amphoteric.
D)a strong reducing agent.
E)a strong oxidizing agent.

Accepted Answer

The nitrate ion, NO3-, has a high oxidation state (+5) and is therefore a strong oxidizing agent. It can readily accept electrons and be reduced in chemical reactions.

Question 3

The chemical that ranks first in production among all industrial chemicals is A)NH₃,ammonia. B)H₃PO₄,phosphoric acid. C)NaOH,sodium hydroxide. D)Na₂CO₃,sodium carbonate. E)H₂SO₄,sulfuric acid.

Accepted Answer

Sulfuric acid (HSO4) is the chemical that ranks first in production among all industrial chemicals. It is used in various industries such as fertilizers, chemicals, and detergents.

Question 4

Arsenic,As,is
A)an essential element in the human body.
B)toxic because it results in an increase in the production of ATP.
C)toxic because it binds to the sulfhydryl group in proteins and enzymes.
D)used in high concentrations in ancient cosmetics.
E)None of these choices is correct.

Accepted Answer

Arsenic is toxic because it can bind to the sulfhydryl group in proteins and enzymes, disrupting their function. It is not an essential element in the human body and does not result in an increase in ATP production. While it has been used in ancient cosmetics, it is not used in high concentrations for this purpose today.

Question 5

Which of the following is the strongest acid? A)HClO₃ B)HBrO₃ C)HIO₃ D)HIO₂ E)HClO

Accepted Answer

HClO has the strongest acid among the given options because the electronegativity of chlorine (Cl) is higher than that of bromine (Br) or iodine (I), making HClO the strongest acid due to its ability to stabilize the negative charge on the oxygen in the conjugate base more effectively.

Question 6

Which oxide is an amphoteric oxide? A)Na₂O B)Al₂O₃ C)BaO D)SiO₂ E)More that one of these oxides are amphoteric.

Accepted Answer

Amphoteric oxides can act as both acidic and basic oxides. Among the given oxides, only Al2O3 (option B) is amphoteric. It can react with both acids and bases to form salts. The other oxides are either basic (BaO) or acidic (SiO2, Na2O) but not amphoteric.

Question 7

In their elemental forms,the halogens are
A)strong oxidizing agents.
B)strong reducing agents.
C)strong acids.
D)strong bases.
E)amphoteric.

Accepted Answer

Halogens have a high electronegativity and therefore are strong oxidizing agents. They have a tendency to gain electrons to complete their outermost shell, resulting in the formation of halide anions in ionic compounds. This property is attributed to their high electron affinity, which makes them readily accept electrons.

Question 8

What products are formed from the reaction of Cl₂(g)with I^-(aq)? A)ICl B)ICl₂ C)ICl₃ D)I₂ and Cl^- E)I and Cl^2-

Accepted Answer

Chlorine gas (Cl2) oxidizes iodide ions (I-) to form iodine (I2) and chloride ions (Cl-).

Question 9

Sulfur hexafluoride,SF₆,is A)a reactive gas that decomposes when exposed to moisture. B)a reactive gas used to fluorinate organic compounds. C)an inert gas that is used as an electrical insulator. D)a reactant in the process of manufacturing non-stick coatings. E)used in the manufacture of sulfuric acid.

Accepted Answer

Sulfur hexafluoride is an inert gas that is used as an electrical insulator. It is often used in electrical equipment such as circuit breakers and switchgear. It is not reactive and does not decompose when exposed to moisture or react with organic compounds. It is not used in the manufacture of non-stick coatings or sulfuric acid.

Question 10

Hydrogen peroxide,H₂O₂,is A)a strong reducing agent. B)used as a drying agent. C)a colored liquid with a low boiling point. D)a strong acid. E)a component of rocket fuel.

Accepted Answer

The answer of Hydrogen peroxide,H₂O₂,is A)a strong reducing agent. B)used as a...

Question 11

Which of the following compounds is not a common phosphorus-containing oxoacid? A)H₃PO₄ B)H₅P₃O₁₀ C)H₃PO₃ D)H₃PO₂ E)H₃P₂O₇

Accepted Answer

The answer of Which of the following compounds is not...

Question 12

Which halogen does not form compounds with both positive and negative oxidation states?
A)Chlorine
B)Fluorine
C)Iodine
D)Bromine
E)Astatine

Accepted Answer

Fluorine is the only halogen that does not form compounds with both positive and negative oxidation states. It is the most electronegative element, meaning it attracts electrons towards itself and does not readily give them up to form positive compounds. Instead, fluorine typically forms negative compounds, such as fluoride ions.

Question 13

Which of the following elements can be oxidized by nitric acid to form its corresponding oxoacid?
A)Sulfur
B)Gold
C)Phosphorus
D)A and C
E)A and B

Accepted Answer

Both sulfur and phosphorus can be oxidized by nitric acid to form their corresponding oxoacids (sulfuric acid and phosphoric acid, respectively). Gold is a noble metal and is not easily oxidized by nitric acid.

Question 14

Which of the following is not a product of the reaction of zinc metal with nitric acid? A)NH₄⁺ B)H₂O C)H₂ D)Zn²⁺ E)All of the species are products.

Accepted Answer

The chemical formula represented by choice A is not a valid chemical formula and does not correspond to any known compound. Therefore, it cannot be a product of the reaction of zinc metal with nitric acid.

Question 15

Which,if any,of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.) A)XY B)XY₂ C)XY₃ D)XY₅ E)All may represent stable interhalogen compounds.

Accepted Answer

The answer of Which,if any,of the following generalized formulas does...

Question 16

Which of the following is a commercial application of phosphate compounds?
A)Detergents
B)Toothpaste
C)Fertilizers
D)Flame retardants
E)All of the answers are correct.

Accepted Answer

Phosphate compounds are used in a variety of commercial applications such as detergents, toothpaste, fertilizers, and flame retardants. Therefore, option E "All of the answers are correct" is the best choice.

Question 17

Which of the following is an accurate comparison of the properties of nitrogen and oxygen?
A)Both oxygen and nitrogen form anions easily.
B)Oxygen is a strong oxidizing agent while nitrogen is a strong reducing agent.
C)Nitrogen uses more oxidation states in its compounds than oxygen does.
D)Nitrogen is more reactive than oxygen.
E)Nitrogen does not form naturally occurring compounds,but oxygen does.

Accepted Answer

Oxygen commonly has an oxidation state of -2 in its compounds and occasionally has an oxidation state of -1 (in peroxides) or 0 (in O2). Nitrogen, on the other hand, can have oxidation states ranging from -3 to +5 in its compounds. Therefore, nitrogen uses more oxidation states in its compounds than oxygen does.

Question 18

Hydrogen fluoride is used
A)in the manufacture of steel.
B)in the synthesis of cryolite for aluminum production.
C)as an oxidizing agent.
D)as a disinfectant.
E)as a mouthwash.

Accepted Answer

Hydrogen fluoride is used in the synthesis of cryolite for aluminum production.

Question 19

Which of the following has the most allotropes?
A)Carbon
B)Sulfur
C)Oxygen
D)Selenium
E)Nitrogen

Accepted Answer

The answer of Which of the following has the most...

Question 20

What products are formed from the reaction of H₂O(l)with ClF₅(l)? A)HClO₂(aq)and HF(aq) B)HClO₃(aq)and HF(aq) C)HClO(aq)and HF(aq) D)HCl(aq)and HF(aq) E)HClO(aq)and HFO(aq)

Accepted Answer

The balanced chemical equation for the reaction is:
HSO4- + ClF5 → HSO3F + HClO
Thus, the products formed are HClO (hypochlorous acid) and HSO3F (fluorosulfonic acid). HSO3F can further react with water to form HF (hydrofluoric acid):
HSO3F + H2O → HF + H2SO4
Therefore, the products formed from the reaction of HS04- with ClF5 are HClO and HF. The correct answer is B.

Quiz 24: Nonmetallic Elements and Their Compounds

The strongest elemental oxidizing agents are found in the _____ _ region of the periodic table while the strongest reducing agents are found in the ____ region of the periodic table.

The nitrate anion is

The chemical that ranks first in production among all industrial chemicals is

Arsenic,As,is

Which of the following is the strongest acid?

Which oxide is an amphoteric oxide?

In their elemental forms,the halogens are

What products are formed from the reaction of Cl₂(g) with I^-(aq) ?

Sulfur hexafluoride,SF₆,is

Hydrogen peroxide,H₂O₂,is

Which of the following compounds is not a common phosphorus-containing oxoacid?

Which halogen does not form compounds with both positive and negative oxidation states?

Which of the following elements can be oxidized by nitric acid to form its corresponding oxoacid?

Which of the following is not a product of the reaction of zinc metal with nitric acid?

Which,if any,of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Which of the following is a commercial application of phosphate compounds?

Which of the following is an accurate comparison of the properties of nitrogen and oxygen?

Hydrogen fluoride is used

Which of the following has the most allotropes?

What products are formed from the reaction of H₂O(l) with ClF₅(l) ?