ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Ammonia contains nitrogen in it: 46% 50% 80% 82%
2 Ammonia is injected under the soil surface: 1 Feet 6 inches 6 Feet 9 inches
3 75% plant nutrients are present in the fertilizer: Urea NH<sub>4</sub>NO<sub>3</sub> NH<sub>3</sub> (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub>
4 Setting time of cement is controlled by adding: Epsom Gypsom CaCO<sub>3</sub> CaCl<sub>2</sub>
5 A colloidal gel is: 3Ca, Al<sub>2</sub>O<sub>3</sub> CaSO<sub>2.</sub>2H<sub>2</sub>O 3CaAl<sub>2</sub>O<sub>3</sub>.3CaSO<sub>4</sub>.2H<sub>2</sub>O 3Ca.Al<sub>2</sub>O<sub>3</sub>.6H<sub>2</sub>O
6 Major fertilizers with micro-nutrients are: Nitrogeneous Phosphalic Potash All of these
7 Which is not nitrogeneous fertilizers? (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub> NH<sub>4</sub>NO<sub>3</sub> Urea Calcium phosphate
8 Which is not nitrogeneous fertilizers? (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub> NH<sub>4</sub>NO<sub>3</sub> Urea Calcium phosphate
9 Pakistan in the beginning was a country : Industrial Chemical Agrarian Technologies
10 Composition of clay in cement is: 25% 50% 75% 80%
11 Major component in cement is : SiO<sub>2</sub> Lime Al<sub>2</sub>O<sub>3</sub> MgO
12 Content is a combination of mainly: Calcarious Argillaceous Calcarious and argillaceous Al<sub>2</sub>O<sub>3</sub>
13 Ammonium nitrate fertilizers is not used for which crop? Cotton Wheat Sugar-cane Paddy rice
14 How many are the zones through which the charge passes in a rotary kiln? 4 3 2 5
15 Which is not a calcarious material? Lime Clay Marble Marine shell
16 The paper is derived from the name of which seedy plant? Rose Sun flower Papyrus Water Hyacinth
17 During the manufacturing process of cement the temperature of the decomposition zone goes up: 600<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span> 8000<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span> 1000<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span> 1200<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°C</span>
18 Micro-nutrients are required in quantity ranging form: 4g-40g 6g-200g 6kg- 200 kg 4kg- 40kg
19 Phosphorus helps the growth of : Root Leave Stem Seed
20 The nitrogen present in some fertilizers helps plants to: Fight against diseases Produce fat Undergo photosynthesis Produce protein
21 Which woody raw material is used for manufacture of paper pulp? Cotton Bagasse Popular Rice straw
22 Which three elements are needed for the healthy growth of plants? N,S,P N,Ca, P N,P,K N,K,C
23 C6H12O6 is molecualr formula of: Glucose Dextrose Fructose All of these
24 Polyester resins have special use in: Clothing Paints Emulsion Floor covering
25 Two or more similar monomers combine to form: Homopolymer Copolymer Ter polymer Thermoplastic polymers
26 Molar mass of high molecular w.f. polymers ranges from: 1000 to 10000 10000 to 100000 100000 to 1000000 1000 to 100000000
27 The simplest separating unit of a polymer is called: Monomer Dimer Trimmer Macromer
28 Poly hydroxyl compounds of aldehyde and ketones are: Carbohydrates Proteins Fats Lipids
29 Simple sugars are : Monosaccharides Disaccharides Oligo saccharides Trisaccharides
30 Cotton has cellulose in it: 96% 97% 98% 99%
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