Fertiliser Technology

151.Steam reforming of naphtha is a source of hydrogen production for nitrogenous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?

1. 1.5 : 1
2. 3.5 : 1
3. 10 : 1
4. 15 : 1

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152.Steam reforming of naphtha produces ammonia synthesis gas. This is a/an _________ process.

1. Autocatalytic
2. Endothermic
3. Exothermic
4. Non-catalytic

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153.Superphosphate is manufactured by reacting phosphate rock with

1. Acetic acid
2. Sulphuric acid
3. Aluminium chloride
4. None of these

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154.Temperature and pressure in ammonia converter is

1. 200 atm, 1000°C
2. 450 atm, 200°C
3. 450 atm, 550°C
4. 450 atm, 1000°C

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155.Temperature and pressure in urea autoclave is

1. 120°C and 300 atm
2. 190°C and 200 atm
3. 400°C and 550 atm
4. 200°C and 10 atm

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156.The composition of fresh feed to the high temperature, high pressure urea autoclave is

1. Excess liquid ammonia and liquefied CO₂
2. Excess liquid ammonia and compressed CO₂ gas
3. Liquid ammonia and excess compressed CO₂
4. Compressed ammonia gas and excess compressed CO₂

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157.The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about _________ percent.

1. 60
2. 30
3. 95
4. 100

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158.The essential ingredient of all the synthesis gas is

1. H₂
2. O₂
3. CO₂
4. N₄

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159.The fertiliser plant getting hydrogen by electrolysis of water is situated at (INDIA):

1. Namrup
2. Nangal
3. Rourkela
4. Korba

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160.The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _________ fertiliser.

1. Nitrogenous
2. Phosphatic
3. Potassic
4. None of these

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