MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test With Answers

MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test

Sr. # Questions Answers Choice
1 Why is CO called as pollutant? reason is: It combines with oxygen It inactivates glycoblysis It combines with hemoglobin Inactivates nerves
2 Which is unnecessary for purification of water for drinking purpose? Coagulation Treatment with iodine Aeration Chlorination
3 Newspaper can be recycled again and again by how many times 5 4 2 3
4 Fungicides are the pesticides which: Kill plants Kill insects Kill herbs Control the growth of fungus
5 What is effect of polluted air on enviroment: Ozone Global warming Acid rain Smog
6 The pH range of acid rain is: 6.5 -6 8-7.5 Less than 5 7- 6.5
7 The temperature in the incineration of industrial and hazardous waste process has a range of: 950-1300C 250-500C 500-900C 900-1000C
8 Biochemical oxygen demand (BOD) is the capacity of organic matter in natural water to consume oxygen with in a period of: 2 days 5 days 6 days 7 days
9 Potassium fertilizers are especially useful for: Tobacco Potato Coffee All of these
10 The composition mixture of clay and lime stone in a raw material is: 75% limestone & 25% clay 15% limestone & 55% clay 25 limestone & 75% clay 55% limestone & 15% clay
11 Which of the following is woody raw material used for making pulp and paper: Eucalyptus Bagasse Wheat straw Cotton linter
12 Usually the % of moisture in paper is: 1---3% 6---8% 4---6% 5%
13 Calendar stock is process in paper making in which Moisture is removed Pulp is spreaded over fabric or screen Paper thickness is removed Paper is wounded in the form of reel
14 Which of the following substance is used as filler or additive in paper making: Glucose Starch Fructose Cellulose
15 Which process of pulp making is mostly used in Pakistan? Kraft process Sulphite process Neutral sulphite semi chemical process (NSSC) All of these
16 Setting process of cement is based on: Hydrolysis Dehydration Hydration Oxidation
17 Cement is mixture of so many compounds roasted in rotary kiln.Which substance has greater percentage: Lime Alumina Silica Magnesia
18 Which sequence of step is correct for the manufacture of cement: Crushing, mixing, heating, grinding Crushing, heating, mixing, grinding Crushing, grinding, mixing, heating Mixing, heating, grinding, crushing
19 What is clinker? Roasted calcareous material Roasted calcareous & argelarious material Roasted argillaceous material Roasted gypsum
20 Which is not a calcareous material: Lime Marble Clay Marine shel
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