With reference to the provisions contained in Part IV of the Constitution of India, which of the following statements is incorrect?

Which one of the following is not a part of Article 51 of the Constitution of India?

In Part-IV, relating to Directive Principles of State Policy, which of the following Articles was not added by the Forty-second Constitution Amendment Act?

The provision, the State shall take steps 'to separate the Judiciary from the Executive in the public services of the State' is incorporated in which part of the Constitution of India?

Which of the following Provision is a part of both Directive Principles of State Policy and Fundamental Duties?

Which of the following Directive Principles of State Policy was added to the Constitution at a later date?