TG EAPCET 2025 (Online) 3rd May Evening Shift | s-Block Elements Question 6 | Chemistry

$$ \text { List I (Reactions) } $$		$$ \text { List II (Methods) } $$
(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

The correct answer is

A-III, B-IV, C-I, D-II

A-IV, B-II, C-I, D-III

A-III, B-IV, C-II, D-I

A-II, B-IV, C-I, D-III

TG EAPCET 2025 (Online) 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

Observe the following statements.

Statement I Both LiF and CsI have low solubility in water.

Statement II Low solubility of LiF in water is due to smaller hydration enthalpy of ions and that of CsI is due to its high lattice enthalpy.

The correct answer is

Both Statement I and II are correct.

Statement I is correct, but Statement II is not correct.

Statement I is not correct, but Statement II is correct.

Both Statements I and II are not correct.

TG EAPCET 2025 (Online) 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

In which of the following the $s$-block elements are arranged in the correct order of their melting points?

$\mathrm{Mg}>\mathrm{Be}>\mathrm{Na}>\mathrm{Li}$

$\mathrm{Li}>\mathrm{Be}>\mathrm{Mg}>\mathrm{Na}$

$\mathrm{Be}>\mathrm{Mg}>\mathrm{Li}>\mathrm{Na}$

$\mathrm{Li}>\mathrm{Mg}>\mathrm{Na}>\mathrm{Be}$

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