4231: Consider the following statements :
Chlorofluorocarbons, known as ozone-depleting substances, are used
1. in the production of plastic foams
2. in the production of tubeless tyres
3. in cleaning certain electronic components
4. as pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
(a) 1, 2 and 3 only
(b) 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
4232: The given map relates to :
(a) Kanishka at the time of his death
(b) Samudragupta after the close of his South Indian campaign
(c) Ashoka towards close of his reign
(d) Empire of Thaneswar on the eve of Harsh's accession
4233: Match List-I with List-II and select the correct answer using the code given below the lists :
List-I(Person) List-II(known as)
A. Bhajan Sopori 1. Bharatnatyam dancer
B. Birju Maharaj 2. Exponent of Santoor
C. Priyadarsini Govind 3. Mridangam maestro
D. T.V.Gopalakrishnan 4. Kathak dancer
(A) 3 4 1 2
(B) 3 1 4 2
(C) 2 4 1 3
(D) 2 1 4 3
4234: Consider the following statements :
Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to
I. act as a reducing agent.
II. remove silica associated with the iron ore.
III. function as fuel, to supply heat.
IV. act as an oxidizing agent.
Of these statements:
(a) I and II are correct
(b) II and IV are correct
(c) I and III are correct
(d) III and IV are correct
4235: The dispute regarding the election of President of India is to be referred to:
(a) Chief Election Commissioner
(b) Supreme Court
(c) Parliament
(d) Attorney-General