Halides of alkaline earth metals from hydrates such as,
$M g C l_{2} \cdot 6 H_{2} O, C a C l_{2} \cdot 6 H_{2} O, B a C l_{2} \cdot 2 H_{2} O$ , and $S r C l_{2} \cdot 2 H_{2} O$ .
This shows that halides of group II elements :

are hygroscopic in nature.

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act as dehydrating agents.

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can absorbs moisture from air.

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cannot absorbs moisture from air.

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Solution

The correct option is D cannot absorbs moisture from air.
Halides of alkaline earth metals from hydrates such as $M g C l_{2} \cdot 6 H_{2} O, C a C l_{2} \cdot 6 H_{2} O, B a C l_{2} \cdot 2 H_{2} O$ , and $S r C l_{2} \cdot 2 H_{2} O$ .

This shows that halides of group II elements cannot absorbs moisture from air because they are already hydrated.
Hence option D is correct.

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Similar questions

Halides of alkaline earth metals form hydrates such as MgCl₂.6H₂O,CaCl₂.6H₂O, BaCl₂.2H₂O and SrCl₂.2H₂O. This shows that halides of group 2 elements

Q. Halides of alkaline earth metals form hydrates such as

M g C l_{2} .6 H_{2} O

C a C l_{2} .6 H_{2} O

B a C l_{2} .2 H_{2} O

and

S r C l_{2} .2 H_{2} O

. This shows that halides of group 2 elements :

Identify the correct formula of halides of alkaline earth metals from the following .
(a) $B a C l_{2} . 2 H_{2} O$ (b) $B a C l_{2}$ (c) $C a C l_{2} . 6 h_{2} O$ (d) $S r C l_{2} . 4 H_{2} O$

Q. Which of the following orders of alkaline-earth metal chlorides are correct:

(a) covalent nature :

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

(b) melting point :

B e C l_{2} < M g C l_{2} < C a C l_{2} < S r C l_{2} < B a C l_{2} < R a C l_{2}

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

(d) thermal stability :

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

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Halides of alkaline earth metals from hydrates such as,MgCl2⋅6H2O,CaCl2⋅6H2O,BaCl2⋅2H2O, and SrCl2⋅2H2O. This shows that halides of group II elements :

Halides of alkaline earth metals from hydrates such as,
$M g C l_{2} \cdot 6 H_{2} O, C a C l_{2} \cdot 6 H_{2} O, B a C l_{2} \cdot 2 H_{2} O$ , and $S r C l_{2} \cdot 2 H_{2} O$ .
This shows that halides of group II elements :