MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test With Answers

MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test

Sr. # Questions Answers Choice
1 The %age of nitrogen in urea is:
 46 60 70 80
2 The substance used in the soil to provide element.Which are essential for plant growth are known as:
 manures <br> fertilizers <br> pesticides <br> additive <br>
3 The elements like calcium nitrogen and phosphorus added into the soil in large amounts are called:
 basic elements <br> trace elements <br> additives <br> nutrient element <br>
4 Which is the chemical formula of calcium super phosphate:
CaH<sub>2</sub>PO<sub>4</sub> CaHPO<sub>4</sub> Ca(H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub> none of above <br>
5 Silk is an example of:
animal fiber <br> vegetable fiber <br> mineral fiber <br> none of all <br>
6 The % age of nitrogen in ammonia is:
 80% 92% 90% 50%
7 Ammonium nitrate fertilizer is not used for which crop:
 cotton <br> wheat <br> sugar cane <br> paddy rice <br>
8 During the manufacturing process of cement the temperature of the decomposition zone goes up to:
 600°C 800°C 1000°C 1200°C
9 The number paper industries in Pakistan are:
 30 25 35 20
10 Which substance among the following used in points to improve the mechanical properties?
 filter <br> binder <br> pigment <br> stablizer <br>
11 Phosphorus is very useful in the growth of:
 leave <br> stem <br> seed <br> root <br>
12 Which fiber contains 85% acrylonitrile by weght?
 azlon fiber <br> saran fiber <br> acrylic fiber <br> rayon fiber <br>
13 Choose the difference between natural and synthetic fertilizers:
 shapes <br> usage <br> crop application <br> raw material <br>
14 Which of the following statement is not correct for glycogen It is main storage of carbohydrates It structure does not resemble Amylopectin It has 1&nbsp;→ 4 and 1&nbsp;→ 6 glycosidic linkage On hydrolysis it yields glucose units
15 Amount of cellulose produced by plants every year is _____ approximately 100 billion tons 90billion tons 80&nbsp;billion tons 70&nbsp;billion tons
16 The charring of glucose when it is heated with conc.H2SO4 is due to Oxidation Reduction Dehydration Dehydrogenation
17 The helical structure of protein is stabilized by Peptide bond Covalent Hydrogen bond Glycoside bond
18 Zwitterion is formed by Lysine Benzoic acid Aniline Acetamide
19 Which of the following statement about ribose is incorrect Poly hydroxyl compound It is an aldo sugar Contain six carbon atoms It exhibit optical activity
20 To become a carbohydrate a compound must contain 2-carbon 3-carbon 4-carbon 5-carbon
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