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General Science 8th Class English Medium Chapter 11 Online Test MCQs With Answers
Question # 1
To make bioplastic, we heat the solution.
Choose an answer
70 oC
75 oC
80 oC
85 oC
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Question # 2
The three key ingredients used in making soap are.
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Oil, lye, water
NaOH , Oil, lye
Glycerol, oill, lye
glycerol, water, oil
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Question # 3
Soap is............. salt of long chain fatty acid.
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Sodium or potassium
Magnesium
Iodine
Halogen
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Question # 4
--------------- is used is solar cooker.
Choose an answer
Convex mirror
Concave mirror
Convex lens
Concave lens
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Question # 5
For making bioplastic, we used corn starch and glyceroal with amount.
Choose an answer
1.4 g and 0.5 g
1.5 g and 0.4 g
1.5 g and 0.5 g
0.5 g and 0.6 g
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Question # 6
To make bioplastic, we use.
Choose an answer
Starch
Glycerol
Distilled water
Starch, Glycerol and distilled water.
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Question # 7
Baking soda, calcium carbonate, glycerin, fluorides are usually used for making.
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Soaps
Detergents
Tooth paste
Banaspati ghee
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Question # 8
Which is used in UPS.
Choose an answer
Electric generator
Compressor
Electric motor
Inverter
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Question # 9
Toothpaste is a ........ paste like material used for cleaning and polisheing teeth.
Choose an answer
Liquid
Gas
Semi -Solid
Solid
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Question # 10
Bio Plastic is made of.
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Fats
Glucose
Proteins
Starch
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Question # 11
Baking soda , sodium chloride, calcium carbonate and glycerin are usually used for making homemade.
Choose an answer
Bioplastic
Detergent
Tooth paste
Hardwash
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Question # 12
بائیو پلاسٹک بنی ہوتی ہے.
Choose an answer
فیٹس
گلوکوز
پروٹین
سٹارچ
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