MCQ
Avogadro number is
- ANumber of atoms in one gram of element
- BNumber of millilitres which one mole of a gaseous substances occupies at $NTP$
- ✓Number of molecules present in one gram molecular mass of a substance
- DAll of these
It is equal to $6.022 \times 10^{23}$.
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$(1)$ In gas phase $SO_2$ molecule is $V-$ shape.
$(2)$ In gas Phase $SO_3$ molecule is planar
$(3)$ $\gamma - SO_3$ is cyclic trimer
Which oi the above statement are correct ?
Reaction : $X\xrightarrow{{'Y'}}CHC{l_3} + Z$