List of top Chemistry Questions asked in Maharashtra Board Class XII Exam

Cyclohexane into Adipic Acid
Ethanentrile into Ethanal
\([Ni(CN)_4]^{2-}\)
\([NiCl_4]^{2-}\)

Mention the number of unpaired electrons and geometry of the following complexes:

(i) \([NiCl_4]^{2-}\)

(ii) \([Ni(CN)_4]^{2-}\)

Convert the following:

(a) Ethanenitrile into ethanal.

(b) Cyclohexane into adipic acid.

Draw the structure of Peroxymonosulfuric Acid.
Write the net cell reaction during discharging of a lead accumulator.
Derive the relation between half-life period and rate constant for a first-order reaction.
Write the chemical reaction for the preparation of Polyacrylonitrile.
Define: Nanoscience

Predict the type of cubic lattice of a solid element having edge length of 400 pm and density of 6.25 g/ml. 
(Atomic mass of element = 60)

Write the Atomic Numbers of Transuranium Elements.
What are Enzymes?
Isobaric and Adiabatic Processes
Extensive and Intensive Properties

Anisole to Phenol. Write two uses of neon.

Acetaldehyde to Isopropyl Alcohol
Cumene to Phenol

Convert the following: 
(i) acetaldehyde to isopropyl alcohol. 
(ii) cumene to phenol. 
(iii) anisole to phenol. Write two uses of neon.

Write the preparation of potassium dichromate from chromite ore.
Define acids and bases according to Bronsted-Lowry theory. Derive the relationship between pH and pOH.
Identify ‘A’, ‘B’ and ‘C’ in the following chain reaction and rewrite the chemical reactions: \[ CH_3CH_2OH \xrightarrow{\text{red P}, \, Br_2} A \xrightarrow{\text{KCN, alc.}} B \xrightarrow{\text{LiAlH}_4, \text{Ether}} C \]
Define the electrochemical series and write its two applications.
Write postulates of Werner’s theory of coordination complexes. Write the name of a hexadentate ligand.
Explain Wolff-Kishner reduction reaction. Write the preparation of propanone by using ethanoyl chloride and dimethyl cadmium.