Question : Ethylene is a _____ molecule.
Option 1: polar
Option 2: ionic
Option 3: covalent
Option 4: nonpolar
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Correct Answer: nonpolar
Solution : The correct option is nonpolar.
The chemical ethylene (C2H4) is nonpolar. The carbon-carbon double bond in ethylene results in a symmetrical molecular shape, and the electronegativity of the atoms involved is quite identical. Because of its symmetry and balance of electron distribution, ethylene is a nonpolar molecule with no substantial positive or negative charges at either end.
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Question : The_________character of the bond between two atoms is greater if the difference in their electronegativity is lesser.
Option 1: Polar
Option 2: Metallic
Option 3: Ionic
Option 4: Covalent
Question : What is dehydration?
Option 1: Removal of acid from a molecule
Option 2: Removal of the base from a molecule
Option 3: Removal of water from a molecule
Option 4: Removal of alkali from a molecule
Question : Directions: Which one of the following responses would be a meaningful order of the following in ascending order? 1. Atom 2. Matter 3. Molecule 4. Electron
Option 1: 4, 1, 3, 2
Option 2: 3, 1, 4, 2
Option 3: 3, 4, 1, 2
Option 4: 1, 2, 3, 4
Question : Phototropic movement is controlled by which of the following?
Option 1: Auxin
Option 2: Gibberellin
Option 3: Cytokinin
Option 4: Ethylene
Question : To keep warm, polar bears have a layer of _________ under their skin.
Option 1: muscle
Option 2: fat
Option 3: cartilage
Option 4: hair
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