HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

Write a mathematical expression for Standard Cell Potential.

What is the mass of copper metal produced at cathode during the passage of 2.03 A current through the CuSO₄ solution for 1 hour. Molar mass of Cu = 63.5 g mol^–1.

Derive the relationship between Gibbs energy of cell reaction and cell potential.

Explain haloform reaction with suitable example.

Write a reaction to distinguish acetaldehyde from acetone.

Write reactions for the action of the following reagents on p-chlorobenzaldehyde.

Tollen’s reagent

Write reactions for the action of the following reagents on p-chlorobenzaldehyde.

Phenyl hydrazine

Write the structure of Hinsberg’s reagent.

O₂ molecule is ______.

The number of covalent bonds present in sulfuric acid:

What is the O−S−O bond angle in SO₂?

Complete the following reaction:

\[\ce{SO_{2(g)} + Cl_{2(g)} ->[Charcoal]}\] ?

Name the solution which is formed by passing sulfur dioxide in water.

Draw resonance hybrid structure of SO₂ in two canonical forms.

Write the mathematical relation between ΔH and ΔU during the formation of one mole of CO₂ under standard conditions.

Write the expression showing the relation between enthalpy change and internal energy change for gaseous phase reaction.

Write one example of nanomaterial used in the following.

Tyre of car

Write one example of nanomaterial used in the following.

ancient glass painting

How is nanotechnology useful for the energy sector?

Explain pseudo-first-order reaction with an example.