Science MCQs
Practice multiple choice questions with instant feedback. Select an option to see if you're correct.
A triple covalent bond involves the sharing of how many electrons?
Which of the following molecules contains a double covalent bond?
The chemical formula for carbon dioxide is:
What is the valency of the carbonate ion (CO₃²⁻)?
Which of the following represents a molecule with a covalent bond?
The formula for Magnesium Oxide is:
How is a covalent bond between two hydrogen atoms represented?
What is the primary reason atoms form chemical bonds?
Which of the following ions has a valency of 3+?
The force holding Na⁺ and Cl⁻ ions together in NaCl is:
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