General Science
8th Class
Chapter 11
Technology in Everyday Life
Questions
1. Encircle the correct option.
(i) Bio-plastic is made of:
a. glucose b. proteins c. starch d. fats
(ii) Baking soda, calcium carbonate, glycerin, fluorides, etc. are usually used for making:
a. soaps b. detergents c. toothpaste d. banaspati ghee
(iii) Soap is ________ salt of long chain fatty acids:
a. sodium or potassium b. magnesium c. Iodine d. halogen
(iv) _________ is used in solar cooker
a. convex mirror b. concave mirror c. convex lens d. concave lens
(v) Which is used in UPS?
a. Inverter b. Electric generator c. Compressor d. Electric motor
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