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Science True-False [Che-1M]

Atoms and Molecules · CBSE STD 9 (CBSE - English Medium). 4 questions.

Questions

True-False [Che-1M]

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4 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
The name of Li3N is lithium nitrite.
Answer
True.
Explanation:
Lithium nitride is a compound with the formula Li3N. It is the only stable alkali metal nitride. The solid is a red or purple color and has a high melting point.
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Question 21 Mark
State whether the following statements are true or false:
A sodium ion has positive charge because it has more protons than a neutral atom.
Answer
False.
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Question 31 Mark
State whether the following statements are true or false:
A chloride ion has negative charge because it has more electrons than a neutral atom.
Answer
True.
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True-False [Che-1M] - Science STD 9 Questions - Vidyadip