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प्रश्न
An element has 2 electrons in its N shell. It reacts with a non-metal of atomic number 7. The compound formed reacts with warm water and produces a basic gas. Identify the elements and write a balanced chemical reaction.
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उत्तर
An element that has 2 electrons in its N shell is Magnesium. The atomic number of magnesium is 12, and its electronic configuration is (2, 8, 2). A non-metal having atomic number 7 is Nitrogen. The compound formed with Magnesium and Nitrogen is Magnesium Nitride (Mg3N2).
\[\ce{3Mg + N2 ->[800^\circ C] Mg3N2}\]
When Magnesium Nitride reacts with warm water, it produces ammonia gas.
The balance equation is as follows:
\[\ce{Mg3N2 + \underset{(warm water)}{6H2O} -> 3Mg(OH)2 + 2NH3 \uparrow}\]
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संबंधित प्रश्न
Ammonia gas is passed over heated copper (I) oxide.
Identify the substance underlined:
The catalyst used to oxidise ammonia.
Name the following
Gas obtained by treating chlorine in excess of ammonia.
Certain blank spaces are left in the following table and these are labelled as A,B,C,Da and E. Identify each of then
|
1 |
HCl gas |
NaCl + H2SO4 |
A = ________ |
Conc.H2SO4 |
B = ___ |
|
2 |
NH3 gas |
C = ____ |
Mg(OH)2NH3 |
D = ______ |
E = ___ |
Give balanced equation to prove that ammonia Has the element nitrogen in it.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
CrCl3
Write the equation for the formation of ammonia by the action of water on magnesium nitride.
Write a balanced chemical equation for a reaction in which ammonia is oxidised by the following:
A gas which is not oxygen.
State one relevant observation for the following:
Burning of ammonia in excess of oxygen.
