Hydrogen Bonding (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which three elements are electronegative enough to participate in hydrogen bonding?
Which three elements are electronegative enough to participate in hydrogen bonding?
Fluorine, oxygen, and nitrogen
What type of intermolecular force is a hydrogen bond?
What type of intermolecular force is a hydrogen bond?
Permanent dipole-dipole interaction
How should hydrogen bonds be drawn in diagrams?
How should hydrogen bonds be drawn in diagrams?
Dashed lines with partial charges shown
What is the density of ice at 0°C compared to liquid water at 0°C?
What is the density of ice at 0°C compared to liquid water at 0°C?
Ice: 0.917 g cm⁻³, water: 1.029 g cm⁻³
How many hydrogen bonds does each water molecule form in solid ice?
How many hydrogen bonds does each water molecule form in solid ice?
Four hydrogen bonds
Why is ice floating on water important for aquatic life?
Why is ice floating on water important for aquatic life?
Ice insulates water below, preventing it freezing
What would water's boiling point be without hydrogen bonding?
What would water's boiling point be without hydrogen bonding?
Approximately -75°C
Which hydrides show anomalously high boiling points due to hydrogen bonding?
Which hydrides show anomalously high boiling points due to hydrogen bonding?
, , and
Why do water's phase changes require more energy than expected?
Why do water's phase changes require more energy than expected?
Must overcome London forces AND H-bonds
How many hydrogen bonds form between cytosine and guanine in DNA?
How many hydrogen bonds form between cytosine and guanine in DNA?
Three hydrogen bonds