Question

What is the C-H bond angle? a) 109.5 b) 60 c) 120 d) 180

What is the end product of reaction of an alkali and an acid? a) No reaction b) Water c) Salt and water d) Salt only

Answer 1

Answer – We know the in the methane hybridization is sp³, since all bonds are 4 bonded C are sigma and then there is bond angle between H-C-H is 109.5^o.

When it is sp² hybridization like in formaldehyde or alkene then there is bond angle between H-C-H is 120^o.

For the sp² hybridization like in alkyne then there is bond angle between H-C is 180^o, so only the C-H bond angle is d)180^o

We know when acid and alkali reacts there is formed water and salt, since when alkali and acid reacts then there is neutralization reaction and from the salt and water. So answer is c) Salt and water