Chloroethene has the formula of CH2 == CHCl Poly(chloroethene) can be represented as:
A) —(CH3CH2Cl)—
B) —(CHClCHCl)—
C) —(CHCHCl)—
D) —(CH2CHCl)—

The answer is B but I thought it would be D. Can someone please explain why this is wrong?

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answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

give me abc and i will get it for u.