Question

61. Which substance has a polar covalent bond between its atoms? a. NH3 b. NaCl c. K3N d. Ca3N2
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Answer 1

Explanation:

Bonds that are partially ionic are called polar covalent bonds. In this bond a pair of electrons is unequally shared between two atoms.

For NH3, the nitrogen atoms draw the shared electrons in the bonds close to it, so the nitrogen has a partly negative charge.

Answer 2

Explanation:

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1. A

2. B

3. C

4. B

5. D

6. D

7. D

8. A

9. A

10. B

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