A hydrocarbon A (molecular formula C₈H₁₀) on ozonolysis gives B (C₄H₆O₂) only. Compound C (C₃H₅Br) on treatment with magnesium in dry ether gives (D) which on treatment with CO₂ followed by acidification gives(C). Identify A, B and C.

State the laws of reflection.

What is angle of deviation due to reflection?

Give the characteristics of image formed by a plane mirror.

Derive the relation between f and R for a spherical mirror.

What are the Cartesian sign conventions for a spherical mirror?

Name one reagent used to distinguish acetaldehyde and acetone.

Give four examples of carbonyl compounds?

Does formaldehyde undergo aldol condensation? Justify your answer.

What type of aldehydes undergo Cannizaro reaction?

What is urotropine? Give its use.

What happens when calcium acetate is dry distilled?

What is formalin? Write its use.

Ethanal is more reactive towards nucleophilic addition reaction than propanone. Why?

Write a note on haloform reaction.