| 1 |
--------------- is used is solar cooker. |
- A. Convex mirror
- B. Concave mirror
- C. Convex lens
- D. Concave lens
|
| 2 |
Soap is............. salt of long chain fatty acid. |
- A. Sodium or potassium
- B. Magnesium
- C. Iodine
- D. Halogen
|
| 3 |
Baking soda , sodium chloride, calcium carbonate and glycerin are usually used for making homemade. |
- A. Bioplastic
- B. Detergent
- C. Tooth paste
- D. Hardwash
|
| 4 |
For making bioplastic, we used corn starch and glyceroal with amount. |
- A. 1.4 g and 0.5 g
- B. 1.5 g and 0.4 g
- C. 1.5 g and 0.5 g
- D. 0.5 g and 0.6 g
|
| 5 |
Toothpaste is a ........ paste like material used for cleaning and polisheing teeth. |
- A. Liquid
- B. Gas
- C. Semi -Solid
- D. Solid
|
| 6 |
To make bioplastic, we use. |
- A. Starch
- B. Glycerol
- C. Distilled water
- D. Starch, Glycerol and distilled water.
|
| 7 |
Baking soda, calcium carbonate, glycerin, fluorides are usually used for making. |
- A. Soaps
- B. Detergents
- C. Tooth paste
- D. Banaspati ghee
|
| 8 |
To make bioplastic, we heat the solution. |
- A. 70 oC
- B. 75 oC
- C. 80 oC
- D. 85 oC
|
| 9 |
Which is used in UPS. |
- A. Electric generator
- B. Compressor
- C. Electric motor
- D. Inverter
|
| 10 |
Bio Plastic is made of. |
- A. Fats
- B. Glucose
- C. Proteins
- D. Starch
|
