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(B) Statement $(a)$ is correct: $AgF$ is the only silver halide that is soluble in water due to high hydration energy of $F^-$ ion,and it is colourles

Vedclass · Accepted Answer

$(a, b)$

Vedclass · Answer

(B) Statement $(a)$ is correct: $AgF$ is the only silver halide that is soluble in water due to high hydration energy of $F^-$ ion,and it is colourless.Statement $(b)$ is incorrect: $LiF$ has a higher melting point than $NaF$ due to its smaller size and higher lattice energy. Solubility of $LiF$ is also lower due to high lattice energy.Statement $(c)$ is incorrect: $Rb_2SO_4$ is highly soluble in water,whereas $BaSO_4$ is practically insoluble due to high lattice energy.Statement $(d)$ is correct: $AgI$ is a yellow-coloured precipitate. When added to water,it remains as a suspension,giving the water a yellow appearance.Therefore,statements $(a)$ and $(d)$ are correct. However,based on the provided options,the most appropriate choice is $(b)$ $(a, b)$ is incorrect,but $(a, d)$ is not listed. Re-evaluating: $AgF$ is soluble $(a)$,$LiF$ solubility is lower than $NaF$ $(b)$,$Rb_2SO_4$ is more soluble than $BaSO_4$ $(c)$,$AgI$ is yellow $(d)$. The correct statements are $(a)$ and $(d)$. Since $(a, d)$ is not an option,and $(a, b)$ is provided,there is a discrepancy. Given standard chemistry,$(a)$ and $(d)$ are the factual statements.

Column-$I$	Column-$II$
$I. Ca(OH)_2$	$A$. Casts of statues
$II. NaCl$	$B$. White wash
$III. CaSO_4 \cdot \frac{1}{2}H_2O$	$C$. Antacid
$IV. CaCO_3$	$D$. Washing soda preparation

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Match the following compounds (Column-$I$) with their uses (Column-$II$):

Column-$I$ Column-$II$

$I. Ca(OH)_2$ $A$. Casts of statues

$II. NaCl$ $B$. White wash

$III. CaSO_4 \cdot \frac{1}{2}H_2O$ $C$. Antacid

$IV. CaCO_3$ $D$. Washing soda preparation

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