Choose the CORRECT statement - Vidyadip

MCQ

Choose the $CORRECT$ statement

A
Arsenic, antimony and bismuth are not found mainly as sulphide minerals
B
Spontaneous combustion of white phosphorus is technically used in Holme's signals
✓
Polonium is the only element of group $-16$ , which does not exhibit allotropy
D
Oxygen shows allotropy

✓

Answer

Correct option: C.

Polonium is the only element of group $-16$ , which does not exhibit allotropy

c
For $\mathrm{SF}_{6}$, it has $\mathrm{sp}^{3} \mathrm{d}^{2}$ hybridized molecule with octahedral geometry. It has zero dipole moment and is highly compact which repels incoming water molecules. So, it can not be hydrolyzed. So, the correct answer is option C.

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