Excess of $Na^+$ ions in our system causes:

Discuss the various reactions that occur in the Solvay process.

What is the product formed when $Zn$ reacts with an excess of $NaOH$?

Number of metal ions characterized by flame test among the following is $....$.
$Sr^{2+}, Ba^{2+}, Ca^{2+}, Cu^{2+}, Zn^{2+}, Co^{2+}, Fe^{2+}$

What is the increasing order of hydration enthalpies of alkali metal ions?

Match List-$I$ with List-$II$:

List-$I$ (Salt)	List-$II$ (Flame colour wavelength)
$(a)$ $LiCl$	$(i)$ $455.5 \text{ nm}$
$(b)$ $NaCl$	$(ii)$ $670.8 \text{ nm}$
$(c)$ $RbCl$	$(iii)$ $780.0 \text{ nm}$
$(d)$ $CsCl$	$(iv)$ $589.2 \text{ nm}$

Choose the correct answer from the options given below: