ECAT Chemistry Online Test With Answers

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ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Ammonium nitrate fertilizer is not used for which crop Cotton Wheat Sugar cane Paddy rice
2 How many zones through which the charge passes in a rotary kiln 4 3 2 5
3 Which is not a calcareous material Lime Clay Marble Marine shell
4 The word paper is derived from the name of which reedy plany Rose Sun flower Papyrus Water hyacinth
5 During the manufacturing process of cement the temperature of the decomposition zone goes up to 600°C 800°C 1000°C 1200°C
6 Micro-nutrients are required in quantity ranging from 4g-40g 6g-200g 6Kg-200Kg 4Kg-40Kg
7 Phosphorus helps the growth of Root Leave Stem Seed
8 The nitrogen present in some fertilizers helps plants To fight against disease To produce fat To undergo photosynthesis To produce protein
9 Which woody raw material is used of the manufacture of paper pulp Cotton Bagasse Poplar Rice straw
10 Which three elements are needed for the healthy growth of plants N, S, P N, Ca, P N, P, K N, K, C
11 The number of paper industries in Pakistan are 30 25 35 20
12 At present the number of cement factories is Pakistan are 20 22 25 30
13 At present the number of fertilizers plants in Pakistan are 10 12 14 20
14 Which one is a nitrogen fertilizer Urea Calcium sulphate Potassium phospahte Magnesium carbonate
15 What element is not essential the growth of plants and is not required in the fertilizers Nitrogen Potassium Phosphorus Barium
16 When hydrogen cyanide is added to an Aldehyde in the presence of ammonia it is called Strecker synthesis Cory house synthesis Williamson;s synthesis None of these
17 It decolourises aqueous bromine rapidly It is insoluble in water It reduces Fehling's reagent Two molecules react with each other in the presence of a strong acid
18 What is the structure of the ester formed from propanoic acid and ethanol
19
20 Zwitter ion is ______ ion an amino acid Polar Monopular Dipolar Non polar
21 Ethanol in the presence of concentrated sulphuric acid Potassium hydroxide Sodium Sodium carbonate
22 Elimination Esterification Elimination Isomerisation Oxidation Exterification Oxidation Oxidation
23 di(4-bormophenyl) method Methanol Propan-1-ol Propan-2-ol
24
25 Which compound is both chiral and acidic
26 Acidified AgNO<sub>3(aq)</sub> Fehling's solution Na Na<sub>2</sub>XO<sub>3(aq)</sub>
27 A compound X has all of the following properties: It is a liquid at room temperature and atmospheric pressure; It does not mix completely with water; It does not decolorise acidified potassium manganate
What could X be
 Ethane Ethanoic acid Ethanol Ethyl ethanoate
28 RCH(CH<sub>3</sub>)CO<sub>2</sub>H + CH<sub>3</sub>OH RCH(CH<sub>3</sub>)CO<sub>2</sub>H + HCO<sub>2</sub>H RCH(CH<sub>3</sub>)OH + CO<sub>2</sub> RCH(CH<sub>3</sub>)OH + HCO<sub>2</sub>H
29 Step 1 Step 2<div>HCI HCN</div> HcN,NaCH H<sub>2</sub>SO<sub>4</sub> H<sub>2</sub>SO<sub>4</sub> K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>/H<sub>2</sub>SO<sub>4</sub> KCN HCI
30 Glutamic acid, aspartic acid are ______ amino acid Acidic Basic Neutral None of these
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