Here's a mock test for Chemistry optional (Mains) questions and answers:

1) Explain the concept of electronegativity and its importance in chemical reactions.
2) What is the difference between a Lewis acid and a Lewis base? Give an example of each.
3) Describe the structure and bonding in diamond and graphite.
4) Discuss the various factors that affect the rate of a chemical reaction.
5) What is the difference between an exothermic and endothermic reaction? Give an example of each.
6) Explain the principles of chromatography and its different types.
7) Describe the different types of isomerism in organic compounds.
8) Discuss the various methods of purification of organic compounds.
9) What is the role of catalysts in chemical reactions? Give an example of a catalytic reaction.
10) Explain the different types of chemical bonding and their properties.

UPSC Paper 2 - Mock Tests:

1) What is the importance of public administration in a democratic society?
2) Discuss the concept of governance and its different dimensions.
3) Describe the different types of public policies and their implementation.
4) What are the various methods of public administration and their advantages and disadvantages?
5) Explain the principles of accountability and transparency in public administration.
6) Discuss the different approaches to public management and their relevance in the current scenario.
7) Describe the role of bureaucracy in public administration and its challenges.
8) Explain the concept of e-governance and its benefits.
9) Discuss the importance of ethics in public administration and the different ethical dilemmas faced by public officials.
10) Explain the various methods of performance evaluation in public administration.