Zeolite is a silicate of two metal ions $X$ and $Y$. $X$ and $Y$ are respectively
- A$Ca^{2+}, Na^{+}$
- B$Mg^{2+}, Na^{+}$
- C$Na^{+}, Al^{3+}$
- D$Ca^{2+}, Mg^{2+}$
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Similar Questions
Fill in the blanks:
$(1)$ Among all alkali metals,.......... is a radioactive element.
$(2)$ The half-life of $^{223}Fr$ is ..........
$(3)$ Among all alkali metal ions,............ has the highest ionization enthalpy.
$(4)$ Alkali metals are identified by the ........... test.
$(1)$ Among all alkali metals,.......... is a radioactive element.
$(2)$ The half-life of $^{223}Fr$ is ..........
$(3)$ Among all alkali metal ions,............ has the highest ionization enthalpy.
$(4)$ Alkali metals are identified by the ........... test.
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