PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Describe the preparation of potassium permanganate. How does the acidified permanganate solution react with oxalic acid? Write the ionic equation for the reaction.

Among the isomeric alkanes of molecular formula C₅H₁₂, identify the one that on photochemical chlorination yields three isomeric monochlorides.

Among the isomeric alkanes of molecular formula C₅H₁₂, identify the one that on photochemical chlorination yields four isomeric monochlorides.

Define lanthanoid contraction.

How many atoms constitute one unit cell of a face-centered cubic crystal?

Write the IUPAC name of 

Write the IUPAC names of the following coordination compounds: [Cr(NH₃)₃Cl₃]

Write the IUPAC name of the given compound:

Gas (A) is more soluble in water than Gas (B) at the same temperature. Which one of the two gases will have the higher value of KH (Henry’s constant) and why

When a coordination compound CoCl₃.6NH₃ is mixed with AgNO₃, 3moles of AgCl are precipitated per mole of the compound. Write the IUPAC name of the coordination compound.

An element crystallises in a b.c.c lattice with cell edge of 500 pm. The density of the element is 7.5g cm^-3. How many atoms are present in 300 g of the element?

Give reasons for the following: (CH₃)₂NH is more basic than (CH₃)₃N in an aqueous solution.

Give reason for the following:

Primary amines have higher boiling point than tertiary amines.

Write the product in the following reaction

Out of white phosphorus and red phosphorus, which one is more reactive and why?

Write the IUPAC name of the given compound:

State Henry’s law.

Why do gases always tend to be less soluble in liquids as the temperature is raised?

Write down the IUPAC name of the following complex: [Co(NH₃)₅ (NO₂)](NO₃)₂

Arrange the following: C₂H₅NH₂, C₂H₅OH, (CH₃)₃N – in the increasing order of their boiling point