The predominant intermolecular forces present in ethyl acetate, a liquid, are:

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Canvas Classes · Accepted Answer

Ethyl acetate ():

Step 1 — Analyse the structure:
- Ethyl acetate has a polar C=O group and C–O–C ether linkage → polar molecule → has dipole–dipole interactions
- No O–H or N–H bonds → no hydrogen bonding (it can accept H-bonds but cannot donate)
- All molecules have London dispersion forces

Step 2 — Predominant forces:
- London dispersion ✓ (always present)
- Dipole–dipole ✓ (polar molecule)
- Hydrogen bonding ✗ (no O–H or N–H donor)

Answer: Option (1) — London dispersion and dipole–dipole

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