1.

Which of the following statements is correct? Dielectric constant of H_(2)O_(2)?

Answer»

Zeolites have a more closed struture than feldspar.
`H_(4)As_(2)O_(7)` is an 'ortho' acid.
Pseudo-alum does not have `Na^(+)" and "K^(+)`.
Superphosphate of lime is `4Ca(H_(2)PO_(4))_(2)`.

SOLUTION :Pseudo-alum constitue a CLASS in which monovalent atom of true alum is REPLACED by a divalent atom. Hence, `Na^(+)" and "K^(+)` are not present


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