Topic Details (Notes format)

DNA and RNA Structures

Subject: Chemistry

Book: General Chemistry

DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are nucleic acids composed of nucleotides (sugar, phosphate, nitrogenous base). DNA forms a double helix with complementary base pairing (A–T, C–G). RNA is typically single-stranded, but can form complex secondary structures. They carry genetic information (DNA) and mediate protein synthesis (RNA), underpinning all cellular processes and heredity.

Practice Questions

Which non-metal element is liquid at room temperature?

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Which element has the atomic number 92?

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Which element has the atomic number 79?

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What is the chemical formula for sodium carbonate?

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What is the common name for sodium bicarbonate?

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Which element is represented by the symbol 'Ne'?

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Which element is a key component of DNA and RNA?

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What is the chemical formula for sulfuric acid?

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Which acid is found in vinegar?

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