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प्रश्न
Assertion and Reason
A: Vegetable peels buried in the soil disappear within two weeks.
R: Vegetable peels are compostable.
विकल्प
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
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उत्तर
Both A and R are true and R is the correct explanation of A.
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संबंधित प्रश्न
A______is a long chain made up of many repeated small units called monomers.
Arrange in Correct Sequence
| 1. | Mix water, starch, vinegar and glycerin in a cooking pot. |
| 2. | Let the article cool for 24 hours before we use it. |
| 3. | Shape material to form a cup or bowl. |
| 4. | Continuously mix on medium heat until the liquid turns clear. |
| 5. | When the liquid begins to bubble it is ready to be taken off the stove. |
| 6. | Spread the gel onto aluminium foil and cool. |
What is the chemical name of the polymers that make up cotton?
Fill in the blanks
All the ______ present in your body are polymers.
______ and ______ are the building block monomers that make up many different types of plastics.
______ are long strands of polymers interwoven to form linear, string-like structures.
Polyamides are made with monomers.
Match the following:
| 1. | Teflon | a. | Fabrics do not wrinkle easily |
| 2. | Nylon | b. | Used to make non-stick cookware |
| 3. | Polyester | c. | Prepared by using pulp |
| 4. | Rayon | d. | Used for making parachutes and stockings |
What is the full form of PVC?
