Fertiliser Technology

111.Nitrogen content of urea is about _________ percent.

1. 10
2. 46
3. 80
4. 94

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112.Nitrogenous fertiliser is required

1. During the early stage of growth to promote development of stem and leaves
2. For accelerating fruit formation in later stage of growth
3. To lessen the effect of excessive potash application
4. None of these

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113.Nitrolime is

1. Calcium nitrate
2. Calcium ammonium nitrate
3. A mixture of nitric acid and lime
4. A mixture of ammonium nitrate and calcium nitrate

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114.Nitrolime is chemically known as

1. Calcium nitrate
2. Ammonium nitrate
3. Calcium ammonium nitrate (CAN)
4. None of these

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115.Nitro-phosphate (manufactured at Trombay-India) is a _________ fertiliser.

1. Mixed
2. Complex
3. Highly hygroscopic
4. Highly explosive

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116.NPK fertiliser is a _________ fertiliser.

1. Complex
2. Mixed
3. Nitrogenous
4. Phosphatic

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117.Optimum reaction temperature in steam reforming of naphtha is _________ °C.

1. 700 - 1000
2. 300 - 450
3. 1500-1700
4. 100-200

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118.Oxidation of ammonia is

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

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119.P₂O₅ content in superphosphate is about _________ percent.

1. 30-35
2. 15-20
3. 65-70
4. 85-90

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120.P₂O₅ content in triple superphosphate is about _________ percent.

1. 42-50
2. 15-20
3. 85-90
4. 70-75

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