The question is asking us to identify which pair of Schedule and its content in the Constitution of India is not correctly matched.

Option 1: Eighth Schedule and Languages. This is a correct match. The Eighth Schedule of the Constitution lists the recognized languages of India.

Option 2: Second Schedule and The forms of oaths and affirmations. This is the correct answer. The Second Schedule of the Constitution actually deals with the salaries and allowances of the President, Governors, Judges, and other public officials, and not the forms of oaths and affirmations.

Option 3: Fourth Schedule and Allocation of seats in the Council of States. This is a correct match. The Fourth Schedule of the Constitution contains provisions regarding the allocation of seats in the Rajya Sabha (Council of States) to each state and union territory.

Option 4: Tenth Schedule and Provisions as to disqualification on the ground of defection. This is a correct match. The Tenth Schedule of the Constitution deals with anti-defection laws and sets out the provisions for disqualification of members of Parliament and state legislatures on the grounds of defection.

In conclusion, the correct answer is Option 2, as the Second Schedule does not deal with the forms of oaths and affirmations but rather with