Question

Euchlorine is a mixture of:
A.$C{{l}_{2}},S{{O}_{2}}$
B.$C{{l}_{2}},Cl{{O}_{2}}$
C.$C{{l}_{2}},CO$
D.$C{{l}_{2}},C{{O}_{2}}$

Answer 1

Hint: Euchlorine has a monoclinic structure and is green coloured mineral which can be found in volcanic eruptions. Green colour is a hint to find the constituent present in it.

Complete answer:
In order to answer this question, we need to learn about the p block and group 17 elements. In periodic table. p-block elements are placed in Group 13 to Group 18. having general valence shell electronic configuration $n{{s}^{2}}n{{p}^{1-6}}$(Except He which has $1{{s}^{2}}$ configuration). Properties of p-block elements are influenced by variation in atomic size, ionization energy, electrons gain enthalpy and electronegativity. The first element of each group shows anomalous behaviour (due to absence of d orbital and having small size) from the rest of members of the same group.
Now, chlorine falls under the group 17 of the p block in the modern periodic table. The group 17 elements have the general electronic configuration as $[inert\,gas]n{{s}^{2}}n{{p}^{5}}$. They are collectively known as halogens (Greek halo means salt and genes means born i.e., salt producers). They are highly reactive non-metallic elements. Great similarity among Group 17 elements observed. In a respective period, halogens have the smallest atomic radii due to maximum effective nuclear charge. Down the group from F to I, atomic and ionic radii increases. They have high ionization enthalpy, thus have little tendency to lose electrons. Down the group ionization enthalpy decreases due to increase in size.
Now let us come to our question. When $C{{l}_{2}}$ and $Cl{{O}_{2}}$ are mixed, then euchlorine is formed. Hence, our correct answer is option is option B.

Note:
All halogens are colured:
Florine is yellow gas
Chlorine is greenish yellow gas
Bromine is reddish liquid
Iodine is violet solid
Astatine is a radioactive element.