What name should be used for the ionic compound lii? lithium iodide lithium monoiodide monolithium iodide monolithium monoiodide

The correct option is A. Lithium Iodide

Explanation:

According to the system for naming an ionic compound, the name of the metal ion is always written first and the name of the non-metal ion is written after it.

Lithium is a metal whose ion is named as lithium ion Li+ and Iodine is a non-metal whose ion name is iodide and is written as I-. The charges on metal atoms depend on the number of group they are present on, in the periodic table. The charge on the non-metal ion would be the group number minus eight. Hence, lithium iodide is the correct answer.

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.