ammonia question paper grade 10
Q. 1. What do you observe when ammonia gas is bubbled through red litmus solution?
Q. 2. Write an equation for solutions of ammonium chloride and sodium hydroxide are heated.
Q. 3.(i) What is the purpose of Haber’s Process ?
(ii) Name the gaseous inputs of the Haber’s Process and state the ratio by volume in which the gases are mixed.
(iii) What is done to increase the rate of reaction in the Haber Process ?
(iv) Give two different ways by which the product can be separated from the reactants.
Q. 4. Write equation for the following :
(i) burning of ammonia in oxygen
(ii) catalytic oxidation of ammonia. What would you observe in 1.(i) ?
Name the catalyst used in 1.(ii). In the reaction referred to in 1.(ii) the catalyst glows red hot . Why ? What is the name of the industrial process which starts with the reaction referred to in 1.(ii).
Q. 5.(i) How soluble is ammonia in water ? (ii) Give two reasons to show that the solution of ammonia in water contains hydroxide ions. [i.e.properties of base] (iii) Name a simple method you would employ to prepare ammonium salts in your laboratory.
Q. 6. State what you observe when a piece of moist red litmus paper is placed in a gas jar of ammonia.
Q. 7. Ammonium salts decomposes on heating. What other property do ammonium salts have in common ?
Q. 8. The following reactions are carried out :
A: Nitrogen + metal → compound X
B: X + water → ammonia + another compound
C: Ammonia + metal oxide → metal + water + N2.
(1) One metal that can be used for reaction A is magnesium.
i. Write the formula of the compound X formed. ii. Write the correctly balanced equation for reaction B where X is the compound formed. iii. What property of ammonia is demonstrated by reaction C
Q. 9. Industrially, ammonia is obtained by direct combination between nitrogen and hydrogen. (i) Write the correctly balanced equation for the direct combination of nitrogen with hydrogen. (ii) Which of the metals iron, platinum or copper catalyse
Q. 2. Write an equation for solutions of ammonium chloride and sodium hydroxide are heated.
Q. 3.(i) What is the purpose of Haber’s Process ?
(ii) Name the gaseous inputs of the Haber’s Process and state the ratio by volume in which the gases are mixed.
(iii) What is done to increase the rate of reaction in the Haber Process ?
(iv) Give two different ways by which the product can be separated from the reactants.
Q. 4. Write equation for the following :
(i) burning of ammonia in oxygen
(ii) catalytic oxidation of ammonia. What would you observe in 1.(i) ?
Name the catalyst used in 1.(ii). In the reaction referred to in 1.(ii) the catalyst glows red hot . Why ? What is the name of the industrial process which starts with the reaction referred to in 1.(ii).
Q. 5.(i) How soluble is ammonia in water ? (ii) Give two reasons to show that the solution of ammonia in water contains hydroxide ions. [i.e.properties of base] (iii) Name a simple method you would employ to prepare ammonium salts in your laboratory.
Q. 6. State what you observe when a piece of moist red litmus paper is placed in a gas jar of ammonia.
Q. 7. Ammonium salts decomposes on heating. What other property do ammonium salts have in common ?
Q. 8. The following reactions are carried out :
A: Nitrogen + metal → compound X
B: X + water → ammonia + another compound
C: Ammonia + metal oxide → metal + water + N2.
(1) One metal that can be used for reaction A is magnesium.
i. Write the formula of the compound X formed. ii. Write the correctly balanced equation for reaction B where X is the compound formed. iii. What property of ammonia is demonstrated by reaction C
Q. 9. Industrially, ammonia is obtained by direct combination between nitrogen and hydrogen. (i) Write the correctly balanced equation for the direct combination of nitrogen with hydrogen. (ii) Which of the metals iron, platinum or copper catalyse