Q.1 In contact process, the catalyst used for the conversion of Sulphur dioxide to Sulphur trioxide is:
A) Magnesium oxide C) Silicon dioxide
B) Aluminum oxide D) Vanadium pentoxide
Q.2 The unpolluted natural rain water is slightly acidic due to the reaction of rain water
with:
A) Sulphur dioxide C) Carbon dioxide
B) Oxides of nitrogen D) Hydrogen present in air
A) Magnesium oxide C) Silicon dioxide
B) Aluminum oxide D) Vanadium pentoxide
Q.2 The unpolluted natural rain water is slightly acidic due to the reaction of rain water
with:
A) Sulphur dioxide C) Carbon dioxide
B) Oxides of nitrogen D) Hydrogen present in air
Q.5 The acid rain water has pH:
A) Below 5 C) Between 5 and 7
B) 7 D) Between 7 and 14
A) Below 5 C) Between 5 and 7
B) 7 D) Between 7 and 14
Q.6 In Contact Process for manufacturing sulphuric acid, Sulphur trioxide (SO3) is not absorbed in water because
A) The reaction does not go to completion C) The reaction is quite slow
B) The reaction is highly exothermic D) SO3 is insoluble in water
Q.7 In modern Haber Process Plants, the temperature maintained during the process is
A) 670 – 770 K (400 °C – 500 °C) C) 370 – 470 K (100 °C – 200 °C)
B) 270 – 370 K (0 °C – 100 °C) D) 570 – 600 K (300 °C – 380 °C)
Q.8 In the Haber process for manufacturing of ammonia, Nitrogen is taken from
A) Proteins occurring in living bodies C) Air
B) Ammonium salts obtained industrially D) Minerals containing nitrates
A) The reaction does not go to completion C) The reaction is quite slow
B) The reaction is highly exothermic D) SO3 is insoluble in water
Q.7 In modern Haber Process Plants, the temperature maintained during the process is
A) 670 – 770 K (400 °C – 500 °C) C) 370 – 470 K (100 °C – 200 °C)
B) 270 – 370 K (0 °C – 100 °C) D) 570 – 600 K (300 °C – 380 °C)
Q.8 In the Haber process for manufacturing of ammonia, Nitrogen is taken from
A) Proteins occurring in living bodies C) Air
B) Ammonium salts obtained industrially D) Minerals containing nitrates