This element reacts with hydrogen to produce a gas with the formula HX. When dissolved in water, HX forms an acidic solution. X is __________,
A)Na
B)H
C)C
D)Br
E)O

Question

Quizplus · Accepted Answer

The given details suggest that the element reacts with hydrogen to form HX and the resulting compound forms an acidic solution in water. This indicates that HX is an acid. Among the given options, only Br (Bromine) forms an acidic hydrogen halide, i.e. Hydrogen Bromide (HX). Thus, X is most likely Bromine (Br).

This Element Reacts with Hydrogen to Produce a Gas with the Formula