Given below are two statements :
Statement I : Both CaCl\(_2\) . 6H\(_2\)O and MgCl\(_2\) . 8H\(_2\)O undergo dehydration on heating.
Statement II : BeO is amphoteric whereas the oxides of other elements in the same group are acidic.
In the light of the above statements, choose the correct answer from the options given below :
Statement I : Both CaCl\(_2\) . 6H\(_2\)O and MgCl\(_2\) . 8H\(_2\)O undergo dehydration on heating.
Statement II : BeO is amphoteric whereas the oxides of other elements in the same group are acidic.
In the light of the above statements, choose the correct answer from the options given below :
Show Hint
- Both statement I and statement II are false
- Statement I is false but statement II is true
- Statement I is true but statement II is false
- Both statement I and statement II are true
The Correct Option is A
Solution and Explanation
Statement I: MgCl2.8H2O does not just lose water on heating; it undergoes hydrolysis (forming Mg(OH)Cl and then MgO with loss of HCl), whereas CaCl2.6H2O dehydrates. The statement that both simply undergo dehydration is therefore treated as false (this is the accepted key).
Both statements are false.
Answer: (1) Both statement I and statement II are false
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