Ganzhou, Jiangxi is known as the "Tungsten Capital of the World". The important reactions for smelting metal tungsten (W) are X+3H2 and high temperature W+3H2O. In the following statement, it is incor

Ganzhou, Jiangxi is known as the "Tungsten Capital of the World". The important reactions for smelting metal tungsten (W) are X+3H2 and high temperature W+3H2O. In the following statement, it is incorrect ( According to the chemical equation X+3H2 of high temperature W+3H2O, after the reaction, W and 3H2O contain 1 W atoms, 6 H atoms and 3 O atoms, while before the reaction, 3H2 only contains 6 H atoms, so X molecule is composed of 1 W atoms and 3 O atoms, and the chemical formula of substance X is WO3；; ; So the chemical equation is: WO3+3H2? High temperature? . ? W+3H2O

A, according to common sense and the writing rules of element names, the names of metals are generally metal atomic groups, so option A is correct;

B, according to the algebraic sum of valence of each element in the compound is 0, it can be known that the valence of W element in WO3 before the reaction is +6, while that in simple substance W after the reaction is 0, and the valence of W element before and after the reaction changes from +6 to 0, so option B is incorrect;

C. According to chemical equation X+3H2, high temperature W+3H2O, the chemical formula of substance X is WO3；; According to the law of conservation of mass; So option c is correct;

D, the valence of H element of H2 before the reaction is 0, and that of H element of H2O after the reaction is+1. In the reaction, the valence of hydrogen element changes from 0 to+1, and the valence increases, so option D is correct;

So choose B.