MCQ
In pyrrole the electron density is maximum on


- A$2$ and $3$
- B$3$ and $4$
- C$2$ and $4$
- ✓$2$ and $5$


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$MgO + 2HCl \longrightarrow MgCl_2 + H_2O$

(Given: Molar mass of $Ag$ is $108\, g \,mol ^{-1}$ and that of $Cl$ is $35.5 \,g\, mol ^{-1}$ )
(Round off to the Nearest Integer).
[Use : $\sqrt{3}=1.73, h =6.63 \times 10^{-34} Js$ $m _{ e }=9.1 \times 10^{-31} kg ; c =3.0 \times 10^{8} ms ^{-1}$ $\left.1 eV =1.6 \times 10^{-19} J \right]$