ECAT Chemistry Online Test With Answers

ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following synthetic phosphorous fertilizers is marked as super phosphate Calcium dihydrogen phosphate Appetite Calcium phosphate Wavellite
2 The raw materials for the manufacture of urea fertilizer is Hydrogen and ammonia Steam, methane, ammonia Methane and air None of these
3 The widely used nitrogen fertilizer that contains about 46% nitrogen is Ammonia Ammonium nitrate Ammonium sulphate Urea
4 Which nitrogen fertilizer is favoured in tropical regions because of its-hygroscopic nature Ammonium sulphate Ammonium nitrate Ammonium chloride Ammonium phosphate
5 Among the nitrogen containing fertilizer, the one with about 82% nitrogen content is Ammonium nitrate Ammonia Ammonium phosphate Ammonium sulphate
6 Acidification of the soils due to addition of synthetic nitrogen fertilizer, is corrected by using Gypsum Sodium nitrate Limestone Potassium nitrate
7 Which of the following synthetic fertilizer do not make soil acidic Urea Thin urea Ammonium phosphate Potassium nitrate
8 The basic difference between synthetic and natural fertilizer is in their Rae material Crop application Usage Shapes
9 The elements like boron, chlorine, cobalt, copper etc are added in small amounts to the soil. They are called Macrountrients Trace elemetns Micronutrients Additives
10 The element like nitrogen, phosphorus, calcium, are added in large amounts to the soils and are called Nutrents elemets Basic elements Basic elements Additives
11 The substances that are added to the soil to provide nutrient or assential elements required for plant growth, are called Additives Fertilizer Manures Posticides
12 The development of industries was a direct result of which major factor Population Living standards Depletion of resources All of these
13 Which of the following is not a fertilizer Nitrophos Dolomite Super phosphate of lime Urea
14 Terylen fibre is made by reaction of terephthalic acid with Ethylene Ethylene glycol Glycol Terylene
15 Nylon 6, 6 is prepared by the reaction of nexamethylene with Formic acid Acetic acid Adipic acid None of these
16 The fibre which is obtained from naturally occurring proteins is called Saran Azlon Rayon Nylon
17 Which of the following is a thermosetting plastic PVC Polyethylene Polystyrene Melamines
18 The substances which soften the polymer are called Stabilizers Plasticizers Retarders Pigments
19 The fibre which contains polymers of vinylidine chloride as fibre forming substance is known as Saran fibre Nylon Polyester Acetate fibre
20 The bibre which is composed of at least 85% by weight of acrylonitrile is known as Royan fibre Azlon fibre Saran binre Acrylic fibre
21 Silk is an example of Animal fiber Vegetable fibre Mineral fibre None of these
22 Cotton is an example of Animal fibre Mineral fibre Vegetable fibre Synthetic fibre
23 Which of the following are thermoplastic materials PVC Polystyrenes Polyethylene All these
24 The substance added in the paints for improving the mechanical properties is called Pigment Filter Stabilizer Binder
25 Substances that tend to decrease the activity of enzymes are called Coenzyme Activators Inhibitors Apoenzyme
26 The formula of calcium superphosphate is CaHPO<sub>4</sub> CaH<sub>2</sub>PO<sub>4</sub> Ca(H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub> None of these
27 Natural fertilizers are materials derived from Plants only Animals only Both plants and animals None of these
28 The percentage of nitrogen in ammonium nitrate is 32 - 33.5% 34 - 36% 40 - 45% None of these
29 The percentage of nitrogen in ammonia is 80% 82% 90% 50%
30 The substances which are added to the soil to provide one or more nutrient elements essential for plant growth are called Minerals Hormones Fertilizers None of these
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