Magnesium is burnt in air to form A and B. When B is hydrolysed, C and D are formed. D is the reactant in the manufacture of nitric acid by Ostwald's process. What is C

Question

Magnesium is burnt in air to form A and B. When B is hydrolysed, C and D are formed. D is the reactant in the manufacture of nitric acid by Ostwald's process. What is C (A) NH3 (B) Mg(OH)2 (C) MgO (D) NO

Tardigrade Admin · Accepted Answer

When magnesium is burnt in air, it forms two products

(A

and

B)

. The, compound '

A

' is magnesium oxide and compound '

B

' is traces of magnesium nitride (formed as a result of reaction between magnesium and molecular nitrogen).

Now, on hydrolysis of magnesium nitride

(B)

, it forms ammonia and magnesium hydroxide.

Since, '

D

' is the reactant in the manufacture of nitric acid by Ostwald's process. Thus, compound '

D

' is

N H_{3}

and compound '

C

' is

M g (O H)_{2}

.

The respective reactions for the following information are as follows:

2 M g (s) + O_{2} (g) Δ^{'} A^{'} 2 M g O (s)

(magnesium oxide)

3 M g (s) + N_{2} (g) \to^{'} B^{'} M g_{3} N_{2} (s)

(magnesium nitride)

M g_{3} N_{2} (s) + 6 H_{2} O (l) \to C 3 M g (O H)_{2} (s) + 2 N H_{3} (g)

(magnesium hydroxide)

Q. Magnesium is burnt in air to form $A$ and $B$ . When $B$ is hydrolysed, $C$ and $D$ are formed. $D$ is the reactant in the manufacture of nitric acid by Ostwald's process. What is $C$

$NH X_{3}$

$Mg (OH) X_{2}$

$M g O$

$NO$

Q. Magnesium is burnt in air to form A and B. When B is hydrolysed, C and D are formed. D is the reactant in the manufacture of nitric acid by Ostwald's process. What is C

NHX3​

Mg(OH)X2​

MgO

NO

Q. Magnesium is burnt in air to form $A$ and $B$ . When $B$ is hydrolysed, $C$ and $D$ are formed. $D$ is the reactant in the manufacture of nitric acid by Ostwald's process. What is $C$

$NH X_{3}$

$Mg (OH) X_{2}$

$M g O$

$NO$