The hybridisation of oxygen in both water and diethyl ether molecules is the same but they differ in their bond angles. Explain.

Hybridisation of oxygen in diethyl ether is

The hybrid state of central oxygen atom in diethyl ether is :

Th C-O-O bond angle in the ether molecule is

The shape of water molecule is same as that of

C-O-C bond angle in diethyl ether is about-

Ratio in hydrogen and oxygen in water molecule by volume is

Which of the folowing set of molecules have same shape but different hybridisation ?

The molecule having the largest bond angle is :

The molecule having the largest bond angle is :

(a) Explain why cleavage of phenyl ethers with HBr always produces phenol and alkyl bromides and not bromobenzene and alkanols. (b) Give reasons for the following: (i) The dipole moment of diethyl ether (1.18D) is lower than that of water (1.84D). (ii) The C-O-C bond angle in ethers is higher than H-O-H angle in water though oxygen is sp3 hybridized in both the cases. (iii) Dimethyl ether is completely miscible with water but diethyl ether is soluble in water to a small extent.