The correct statements among the following is/are

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Thermal decomposition of ${(N H_{4})}_{2} B e F_{4}$ gives anhydrous $B e F_{2}$

Addition of NaCl to $B e C l_{2}$ solution, $B e C l_{2}$ will be precipitated due to common ion effect of $C l^{-}$ ion

Hydration energy of $B e F_{2}$ is more than its lattice energy

The anion of $M g_{2} C_{3}$ is isoelectronic with $C O_{2}, N_{3}^{-}, O C N^{-}$

answer is A, C, D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

A) It is the method of preparation of anhydrous $B e F_{2}$
${(N H_{4})}_{2} B e F_{4} \to 2 N H_{3} + 2 H F + B e F_{2}$
B) Addition of NaCl to $B e C l_{2}$ solution form soluble complex $N a_{2} B e C l_{4}$
C) $B e F_{2}$ is soluble in water because its hydration energy is more than its lattice energy
D) $C_{3}^{4 -}$ ion of $M g_{2} C_{3}$ is isoelectronic with $C O_{2}, N_{3}^{-} o r O C N^{-}$