Page 260 - Chemistry ICSE Class X

246 ICSE Chemistry – 10
(vi) Which of the following produces N O on reacting with dilute nitric acid?
2
(a) Ag ‰
(b) K ‰
(c) Cu ‰
(d) Zn ‰
(vii) Copper turnings when heated with conc. nitric acid give
(a) NO ‰
(b) NO ‰
2
(c) N O ‰
2
(d) N O ‰
5
2
Answers

(i) (c) (ii) (b) (iii) (c) (iv) (d) (v) (c) (vi) (d) (vii) (c)

Questions from Board Papers

Q 1. By the addition of only one solution how would you distinguish between dilute hydrochloric acid and dilute
nitric acid? [ICSE 2010]
Q 2. Choose from the following list of substances, as to what matches the description given below: [ICSE 2011]
[Acetylene gas, Aqua fortis, Coke, Brass, Barium chloride, Bronze, Platinum]
A catalyst used in the manufacture of nitric acid by Ostwald’s process.
Q 3. What would you observe when Copper is heated with concentrated nitric acid in a hard glass test tube. [ICSE 2011]
Q 4. (i) What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid ? [ICSE 2011]
(ii) Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200°C?
Q 5. Write the balanced chemical equation for the following: [ICSE 2011]
Ferric hydroxide reacts with nitric acid.
Q 6. Name the gas produced when copper reacts with concentrated nitric acid. [ICSE 2012]
Q 7. Some word/words are missing in the following statement. You are required to rewrite the statement in the
correct form using the appropriate word/words: [ICSE 2012]
Magnesium reacts with nitric acid to liberate hydrogen gas.
Q 8. Give reasons for the following : [ICSE 2012]
Iron is rendered passive with fuming nitric acid.
Q 9. Give balanced equation for the following reaction: [ICSE 2012]
(i) Dilute nitric acid and Copper carbonate.
Q 10. Identify the gas evolved in the following reactions when: [ICSE 2013]
(i) Sulphur is treated with concentrated nitric acid.
(ii) concentrated hydrochloric acid is made to react with manganese dioxide.
Q 11. Fill in the blank from the choices given within brackets: [ICSE 2014]
(i) Cold, dilute nitric acid reacts with copper to form __________ (Hydrogen, nitrogen dioxide nitric oxide)
Q 12. Write balanced equation for the following: [ICSE 2014]
(i) Action of heat on a mixture of copper and concentrated nitric acid.
(ii) Laboratory preparation of nitric acid.