Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 22: Problem 79

Indicate whether each of the following statements is true or false (a) \(\mathrm{H}_{2}(g)\) and \(\mathrm{D}_{2}(g)\) are allotropic forms of hydrogen. (b) \(\mathrm{ClF}_{3}\) is an interhalogen compound. (c) \(\mathrm{MgO}(s)\) is an acidic anhydride. (d) \(\mathrm{SO}_{2}(g)\) is an acidic anhydride. (e) $2 \mathrm{H}_{3} \mathrm{PO}_{4}(l) \rightarrow \mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}(l)+\mathrm{H}_{2} \mathrm{O}(g)$ is an example of a condensation reaction. (f) Tritium is an isotope of the element hydrogen. (g) \(2 \mathrm{SO}_{2}(g)+\mathrm{O}_{2}(g) \rightarrow 2 \mathrm{SO}_{3}(g)\) is an example of a disproportionation reaction.

Short Answer

Expert verified
(a) False, (b) True, (c) False, (d) True, (e) True, (f) True, (g) False

Step by step solution

01

Statement a: Allotropy of hydrogen

Allotropic forms are different structural modifications of an element in the same physical state. H2(g) and D2(g) are not allotropes since they are isotopes of hydrogen, not different structural forms. The statement is false.
02

Statement b: Interhalogen compound

Interhalogen compounds are formed by the combination of two different halogens. ClF3 is formed by combining chlorine (a halogen) and fluorine (another halogen), so it is an interhalogen compound. The statement is true.
03

Statement c: MgO as acidic anhydride

An acidic anhydride is a non-metal oxide that forms an acid when reacting with water. MgO is a metal oxide, not a non-metal oxide, and it forms a basic solution when reacting with water. So, the statement is false.
04

Statement d: SO2 as acidic anhydride

SO2 is a non-metal oxide, and when it reacts with water, it forms sulfuric acid (H2SO3). Thus, it is an acidic anhydride. The statement is true.
05

Statement e: Condensation reaction

A condensation reaction is a reaction in which two molecules combine to form a single molecule, with the elimination of a small molecule like water. In the given reaction, \(2H_3PO_4(l) \rightarrow H_4P_2O_7(l) + H_2O(g)\), two molecules of phosphoric acid (H3PO4) combine to form one molecule of pyrophosphoric acid (H4P2O7) and one molecule of water, which is a condensation reaction. The statement is true.
06

Statement f: Tritium as an isotope

Tritium is an isotope of hydrogen with one proton and two neutrons, while the most common isotope of hydrogen has only one proton and no neutrons. Since they have the same number of protons but a different number of neutrons, tritium is an isotope of hydrogen. The statement is true.
07

Statement g: Disproportionation reaction

A disproportionation reaction is a redox reaction in which an element undergoes oxidation and reduction simultaneously. In the given reaction, \(2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)\), sulfur in SO2 is oxidized to form SO3, while oxygen in O2 is reduced. Since only one element (sulfur) undergoes both oxidation and reduction, the reaction is not a disproportionation reaction. The statement is false.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Name the following compounds and assign oxidation states to the halogens in them: (a) \(\mathrm{Co}\left(1 \mathrm{O}_{3}\right)_{3},\) (b) \(\mathrm{Ca}\left(1 \mathrm{O}_{4}\right)_{2}\), (c) \(\mathrm{PF}_{6}^{-},(\mathbf{d}) \mathrm{ICl}_{4}^{-}\), (e) \(\mathrm{HBrO},\) (f) AtH.

Account for the following observations: (a) Phosphorus forms a pentachloride, but nitrogen does not. (b) \(\mathrm{H}_{3} \mathrm{PO}_{2}\) is a monoprotic acid. (c) Phosphonium salts, such as \(\mathrm{PH}_{4} \mathrm{Cl}\), can be formed under anhydrous conditions, but they cannot be made in aqueous solution. (d) White phosphorus is more reactive than red phosphorus.

The physical properties of \(\mathrm{D}_{2} \mathrm{O}\) differ from those of \(\mathrm{H}_{2} \mathrm{O}\) because (a) D has a different electron configuration than O. (b) \(\mathrm{D}\) is radioactive. (c) D forms stronger bonds with \(\mathrm{O}\) than \(\mathrm{H}\) does. (d) D is much more massive than H.

(a) How does the structure of diborane $\left(\mathrm{B}_{2} \mathrm{H}_{6}\right)\( differ from that of ethane \)\left(\mathrm{C}_{2} \mathrm{H}_{6}\right) ?$ (b) Explain why diborane adopts the geometry that it does. (c) What is the significance of the statement that the hydrogen atoms in diborane are described as "hydridic"?

Write a balanced net ionic equation for each of the following reactions: (a) Dilute nitric acid reacts with zinc metal with formation of nitrous oxide. (b) Concentrated nitric acid reacts with sulfur with formation of nitrogen dioxide. (c) Concentrated nitric acid oxidizes sulfur dioxide with formation of nitric oxide. (d) Hydrazine is burned in excess fluorine gas, forming \(\mathrm{NF}_{3}\). (e) Hydrazine reduces \(\mathrm{CrO}_{4}^{2-}\) to \(\mathrm{Cr}(\mathrm{OH})_{4}^{-}\) in base (hydrazine is oxidized to \(\mathrm{N}_{2}\) ).
See all solutions

Recommended explanations on Chemistry Textbooks

The Earths Atmosphere

Read Explanation

Making Measurements

Read Explanation

Physical Chemistry

Read Explanation

Kinetics

Read Explanation

Organic Chemistry

Read Explanation

Ionic and Molecular Compounds

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free