Which of the following is predominantly an ionic compound?

Question

BlackTom AI · Accepted Answer

Question restatement: Which of the following is predominantly an ionic compound? Options: SeCl2, PCl3, (NH4)2SO4, SO2, None of these.
Option 1: SeCl2. This is a compound formed from a nonmetal (selenium) and a halogen (chlorine). Such compounds are typically covalent molecules with shared electrons and do not form a lattice of oppositely charged ions. Therefore, SeCl2 is not predominantly ionic.
Option 2: PCl3. Phosphorus trichloride is another example of a covalent compound between nonmetals. It exists as discrete molecules with covalent bonds rather than an ionic lattice, so it is not predominantly ionic.
Option 3: (NH4)2SO4. Ammonium sulfate consists of the ammonium cation (NH4+) and the sulfate anion (SO4^2−). This ionic pairing forms an ionic solid with strong electrostatic interactions between ions and a crystalline lattice. When dissolved, it dissociates into ions, enabling conductivity in solution, which is characteristic of ionic compounds.
Option 4: SO2. Sulfur dioxide is a small, covalently bonded molecule (S=O with lone pairs on O and S). It lacks the full ionic lattice structure typical of ionic compounds, making it a covalent oxide rather than ionic.
Option 5: None of these. Given that at least one option clearly corresponds to an ionic compound (the salt formed from ammonium and sulfate), this choice would be inconsistent with the properties of (NH4)2SO4 and the general behavior of the others. 
Overall, distinguishing features include lattice formation and dissociation into ions for ionic compounds, contrasted with discrete covalent molecules for covalent compounds. The ammonium sulfate option uniquely exhibits those ionic characteristics among the list.

Which of the following is predominantly an ionic compound?

查看解析

登录即可查看完整答案

类似问题

NaCl (sodium chloride) is formed by a(n)

Atom A has the electron configuration [Ar]3d104s24p1. Atom B has the electron configuration [Ne]3s23p3. What is the likely formula of the compound formed between A and B?

Which of the following compounds is ionic?

An example of an ionic bond in dentistry is:

Which of the following bonds is ionic?

How many bromide ions can combine with one ion of aluminum to form an ionic compound? BlackTom题目解析

Suppose there are two neutral atoms and one gives an electron to the other. Complete the sentence to analyse the two ions that are formed. The atom on the left can be written by the chemical symbol _____.

Suppose there are two neutral atoms and one gives an electron to the other. Complete the sentence to analyse the two ions that are formed. The atom on the right is a _________ ion.

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单