9.1 Ammonia — Chemistry STD 10 — Question

Explain the structure of Ammonium ion.

How is aluminium obtained from pure ore?

Four elements A, B, C, D and E have the following electron arrangements in their atoms:

A	2, 8, 6
B	2, 8, 8
C	2, 8, 8, 1
D	2,7
E	2, 8, 2

(i) What type of bond is formed when 'A' combines with 'C'?
(ii) Which two elements will combine to form a covalent bond?
(iii) Which element is not able to form any type of bond?
(iv) Draw electron dot structure of bond formation of 'A' molecule.
(v) Which ion will be formed by 'D' to attain stability? Justify with the chemical equation.

A chemical reaction involving the formation of ammonia (NH₃) from nitrogen gas (N₂) and hydrogen gas (H₂) is conducted in a sealed container at constant temperature and pressure. Initially, the container holds 1.00 mole of nitrogen gas and 3.00 moles of hydrogen gas.
(i) According to Avogadro's law, what can be said about the volumes of the reactant gases and the product gas in the container?
(ii) If the reaction goes to completion, what will be the number of moles of ammonia produced?
(iii) Calculate the volume of the ammonia gas produced at the same temperature and pressure.
(iv) Explain the application of Avogadro's law in this scenario.
(v) Discuss the practical implications of Avogadro's law in chemical reactions

Give three reactions to show reducing property of ammonia.