Coal and petroleum Worksheet-4

Coal and petroleum Worksheet-4

31. Bitumen is a _____ used _____.

A. Petroleum product, for surfacing roads

B. By product of manufacture of coke, for surfacing roads

C. By product of petroleum refining, as starting material for manufacture of plastics

D. Petroleum product, as fuel in industries

32. What is called black gold?

A. Petroleum                                 B. Coal

C. Coal Tar                                     D. Natural gas

33. Petrol consumption by vehicles can be reduced by ______.

A. Driving at a constant & moderate speed

B. Ensuring correct type pressure

C. Switching off the engine at traffic lights

D. All of these

34. 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O + Heat

The reaction in which heat is evolved is called _____.

A. Exothermic reaction               B. Endothermic reaction

C. Reduction reaction                 D. Chlorination reaction

35. Useful substances obtained from petroleum & natural gases are called _____.

A. Chemicals                                 B. Petroleum products

C. Petrochemicals                        D. None of these

36. Petrochemicals are used in the manufacture of ____.

A. Polythene                                  B. Detergents

C. Fibres                                         D. All of these

37. CNG is used to produce _______.

A. Hydrogen     B. Nitrogen       C. Oxygen          D. Helium

38. Dead organisms are transformed into petroleum & natural gas in the ______.

A. Absence of air                          B. Presence of air

C. Presence of sun light              D. None of these

39. Oxides of _____ and _____ are responsible for acid rain.

A. hydrogen and nitrogen B. chlorine and sulphur

C. sulphur, nitrogen                    D. carbon and hydrogen

40. Which of the following is used in extraction of metals ?

A. Coke                                           B. coal gas

C. Coal tar                                      D. Petroleum

41. Which of the following is used as solvent for dry cleaning?

A. Diesel                                         B. Kerosene

C. petrol                                          D. Paraffin wax

42. The fibres manufactured by petrochemicals are ______.

A. Nylon                                          B. Polyester

C. Acrylic                                        D. All of these

Answer:

31. A

32. A

Explanation: Due to its commercial importance petroleum is called ‘Black gold’.

33. D

34. A

35. C

36. D

37. A

38. A

39. C

Explanation: Oxides of sulphur and nitrogen are released which react with water producing dilute solutions of sulphuric acid and nitric acid. These fall on earth as acid rain which damages crops and monuments.

40. A

41. C

42. D