COMPASSLearning

Talk to us Register Login

JEE Main · 2023 · 11 Apr 2023 · Shift 2 · s-Block Elements

Mg (NO_{3})_{2} \cdot XH_{2} O

and

Ba (NO_{3})_{2} \cdot YH_{2} O

, represent formula of the crystalline forms of nitrate salts. Sum of X and Y is ____

Answer: 6

Solution

Magnesium nitrate forms a hexahydrate:

Mg (NO_{3})_{2} \cdot 6 H_{2} O

, so

X = 6

. Barium nitrate is anhydrous:

Ba (NO_{3})_{2}

, so

Y = 0

. Therefore,

X + Y = 6 + 0 = 6

.

JEE Main · 2023 · 11 Apr 2023 · Shift 2 · Integer answer

Practise more: all JEE Main PYQs on s-Block Elements →

More JEE Main questions on s-Block Elements

The type of oxide formed by the element among $Li, Na, Be, Mg, B$ and Al that has the least atomic radius is :
JEE Main 2025View solution →
The $F^{-}$ ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.
JEE Main 2024View solution →
Number of metal ions characterized by flame test among the following is ____.
$Sr^{2 +}, Ba^{2 +}, Ca^{2 +}, Cu^{2 +}, Zn^{2 +}, Co^{2 +}, Fe^{2 +}$
JEE Main 2024View solution →
The setting time of Cement is increased by adding
JEE Main 2023View solution →
Ion having highest hydration enthalpy among the given alkaline earth metal ions is:-
JEE Main 2023View solution →
Structure of $BeCl_{2}$ in solid state, vapour phase and at very high temperature respectively are :-
JEE Main 2023View solution →