Halides of alkaline earth metals form hydrates such as MgCl 2- 6 H 2 O - CaCl 2- 6 H 2 O - BaCl 2- 2 H 2 O and SrCl 2- 2 H 2 O- This shows that halides of group 2elementsA- Can act as dehydrating agentsB- Are hygroscopic in natureC- Can absorbs moisture from airD- All of the above

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Standard XII

Chemistry

Hydration Enthalpy and Lattice Enthalpy (Group 2)

Halides of al...

Question

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

Are hygroscopic in nature

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Can act as dehydrating agents

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Can absorbs moisture from air

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All of the above

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Solution

The correct option is D
All of the above

The tendency to form hydrates decreases in the group. All the options reflect the fact that the chlorides do form hydrates.

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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 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 :

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 :

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}

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) $S r C l_{2} . 4 H_{2} O$

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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

The correct option is D All of the aboveThe tendency to form hydrates decreases in the group. All the options reflect the fact that the chlorides do form hydrates.

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

The correct option is D
All of the above

The tendency to form hydrates decreases in the group. All the options reflect the fact that the chlorides do form hydrates.