Question

An oxide of alkaline earth metals $$X$$ reacts with $$C$$ and $$C{l_2}$$  to give a compound $$Y.$$ $$Y$$ is found in polymeric chain structure and is electron deficient molecule. The compound $$Y$$ is

A. $$BeO$$
B. $$BeC{l_2}$$  
C. $$Be{\left( {OH} \right)_2}$$
D. $$BeC{O_3}$$
Answer :   $$BeC{l_2}$$
Solution :
$$\mathop {BeO}\limits_{\left( X \right)} + C + C{l_2} \to \mathop {BeC{l_2}}\limits_{\left( Y \right)} + CO$$
$$BeC{l_2}$$  is polymeric and electron deficient molecule.

Releted MCQ Question on
Inorganic Chemistry >> S - Block Elements

Releted Question 1

A substance absorbs $$C{O_2}$$  and voilently reacts with water. The substance is

A. $$CaC{O_3}$$
B. $$CaO$$
C. $${H_2}S{O_4}$$
D. $$ZnO$$
Releted Question 2

Calcium is obtained by

A. electrolysis of molten $$CaC{l_2}.$$
B. electrolysis of solution of $$CaC{l_2}$$  in water.
C. Reduction of $$CaC{l_2}$$  with carbon.
D. roasting of limestone.
Releted Question 3

A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of

A. sodium atoms
B. sodium hydride
C. sodium amide
D. solvated electrons
Releted Question 4

The hydration energy of $$M{g^{ + + }}$$  is larger than that of :

A. $$A{l^{3 + }}$$
B. $$N{a^ + }$$
C. $$B{e^{ + + }}$$
D. $$M{g^{3 + }}$$

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S - Block Elements


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