Question

Assertion :Statement -I : ${Li}_2{SO}_4$ do not form double salt like alum.
Reason: Statement -II : Atomic size of Li is too small.

Read the above assertion and reason and choose the correct option regarding it.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Statement -I : ${Li}_2{SO}_4$ do not form double salt like alum.<br><br>Because Atomic size of Li is too small.(Usually when you hear about alum it is in reference to potassium alum, which is the hydrated form of potassium aluminum sulfate and has the chemical formula $KAl(S{O}_4{)}_{2}12H_{2}O$. However, any of the compounds with the empirical formula $AB(S{O}_4{)}_{2}12H_{2}O$ are considered to be alum. Sometimes alum is seen in its crystalline form, although it is most often sold as a powder. Potassium alum is a fine white powder that you can find sold with kitchen spices or pickling ingredients).
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Hence option A is coerrect.