MCQ
Which of the following statement is wrong
- ✓No inert gas is present in $7^{th}$ period
- B$3^{rd}$ period contains $18$ elements
- C$1^{st}$ period contains two non metals
- DIn $p-$ block, metal, nonmetal and metalloids are present
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$(C-H= 414; H-O = 463; H-Cl=431;$$ C-Cl=326, C-O=335)$
$CH_3-OH(g) + HCl(g) \rightarrow CH_3-Cl(g) + H_2O(g)$
The total number of methyl $\left(- CH _3\right)$ group($s$) in compound $S$ is. . . .
$2HI_{(g)} \to H_{2(g)} + I_{2(g)}$
is $200 \frac {KJ}{mol}$ at $600 \,K$. Calculate the fraction of molecules of reactant having energy equal to or greater than activation energy ?