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S Block Elements

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MCQ+1 / -02025

\(\text { Match the following. }\)


.tg {border-collapse:collapse;border-spacing:0;}


.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;


overflow:hidden;padding:10px 5px;word-break:normal;}


.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;


font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}


.tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top}































































\(
\text { List I (Reactions) }
\)
\(
\text { List II (Methods) }
\)
(A) $$
\begin{aligned}
\mathrm{Mg}\left(\mathrm{HCO}_3\right)_2 \longrightarrow \mathrm{Mg}(\mathrm{OH})_2 \downarrow
& +2 \mathrm{CO}_2 \uparrow
\end{aligned}
$$
(I) Clark's method
(B) $$
\begin{array}{r}
M^{2+}+\mathrm{Na}_4 \mathrm{P}_6 \mathrm{O}_{18}^{2-} \longrightarrow\left[\mathrm{Na}_2 \mathrm{MP}_6 \mathrm{O}_{18}\right]^{2-}
+2 \mathrm{Na}^{+}
\end{array}
$$
(II) Ion exchange method
(C) $$
\begin{aligned}
\mathrm{Ca}\left(\mathrm{HCO}_3\right)_2 & +\mathrm{Ca}(\mathrm{OH})_2
\longrightarrow 2 \mathrm{CaCO}_3+2 \mathrm{H}_2 \mathrm{O}
\end{aligned}
$$
(III) Boiling
(D) $$
\begin{gathered}
2 \mathrm{NaZ}+\mathrm{Ca}^{2+}(\mathrm{aq}) \longrightarrow 2 \mathrm{Na}^{+}+\mathrm{CaZ}
(\mathrm{Z}=\text { Zeolite })
\end{gathered}
$$
(IV) Calgon's method

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