Although the oxygen atom in water is s`p^(3)` hybridised, the value of H-O-H bond angle is `104.5^(@)` -why?

What is the value of H-C-H bond angle in methane.

Although the O-atoms in water and diethyl ether are sp^(3) -hybridised, the H-O-H and Et-O-Et bond angles are different- why?

In both water and dimethyl ether (CH_(3)-underset(* *)overset(* *)O-CH_(3)), oxygen atom is central atom, and has the same hybridisation, yet they have different bond angles. Which one has greater bond angle ? Give reason.

This question has statement I and Statement II. Of the four choices given after the statements, choose the one that best describes the two Statements. Statement-I: H-S-H bond angle in H_2O is 104.5^@ Statement-II: lp-lp repulsion is stronger in H_2S than in H_2O (1) Statement-I is true, Statement-II is true, Statement-II is a correct explanation of Statement-I (2) Statement-I is true, Statement-II is true,Statement-II is not a correct explanation of Statement-I (3)Statement-I is a true , Statement-II is false (4) Statement-I is false, Statement-II is true

What is the value of H - C -= C bond angle in acetylene (C_(2)H_(2)) molecule?

C-O-C bond angle in ether is more than H-O-H bond angle in water although oxygen is sp^(3) hybridised in both the cases. Explain

(i) Why are the bond angles of NH_(3) and H_(2)O less than the normal values of the regular tetrahedron bond angles inspite of being sp^(3) hybridised? (ii) Find out the bond order of H_(2)^(+) ion.

Mention the values of C-C-C,C-C-H and H-C-H bond angles in propane molecule.

The bond dissociation energy of C_(sp^(3)) - H is smaller than that of C_(sp) - H bond - why?