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Q.
$C-O-C$ angle in ether molecule is approximately,
NTA AbhyasNTA Abhyas 2020Chemical Bonding and Molecular Structure
Solution:
In ether, $sp^{3}$ -hybridized oxygen molecule shows a little larger angle $109^{\text{o}} 28 \text{'}$ due to steric effect of alkyl groups on two sides of it, which predominates over lone pair effect.