Consider the following statements with regard to the vice-President
of India.

1       
The vice-President is the ex-officio
chairman of the Rajya Sabha.

2       
The vice-President discharges the
duties of the President in case his office falls vacant due to death.

3       
In the event of the death of the
President, the vice-President assumes the responsibilities of the office of
the President for the unexpired term.

4       
In the event of the death of the
President the vice-President acts as President for a maximum period of six
months.

Of these statements