CBSE Class 12 Chemistry Question Paper 2020 Set A

CBSE Class 12 Chemistry Question Paper 2020 Set A. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

1. What type of solids are electrical conductors, malleable and ductile?

2. What is the effect of pressure on sodium chloride type of crystals?

3. Assign name to the following organic compounds as per IUPAC nomenclature :-

4. Write the structural formula of the following organic compounds :-

a) 4 methyl pent 3 ene 2 one. b) N methyl butanamide.

5. Arrange the following compounds in an increasing order of their basic character : -

CH₃NH₂, (CH₃)₂NH, (CH₃)₃N, NH₃

6. Write the cell reactions which occur in a lead storage battery

a) when the battery is in use.

b) when the battery is on recharging.

7. a) A reaction is second order with respect to a reactant .How is the rate affected if the concentration of this reactant is doubled?

b) Show that the half life period for a first order reaction is independent of initial concentration of the reactant.

8. Give reason for the following:-

a) Transition metals and many of its compounds show paramagnetic behaviour.

b) Transition metals act as good catalysts.

Please click the link below to download pdf file of CBSE Class 12 Chemistry Question Paper 2020 Set A