596: In the sequence 462, 420, 380, X, 306. X stands for
(a) 352
(b) 342
(c) 332
(d) 322
597: With reference to colonial period of Indian history, match List I (Person) with List II (Event) and select the correct answer using the codes given below the lists :
List I-------------List II
(Person)----------(Event)
A. MacDonald-----1. Doctrine of Lapse
B. Linlithgow------2. Communal Award
C. Dalhousie------3. August Offer
D. Chelmsford-----4. Dyarchy
Codes:
A B C D
(a) 3 2 1 4
(b) 3 2 4 1
(c) 2 3 1 4
(d) 2 3 4 1
598: The hallmark of watershed development in the semi-arid regions of India is the
(a) establishment of sheds on large scale, so that the rain water does not evaporate
(b) undertaking of earthworks, soil conservation measures and tree plantation, so as to conserve soil moisture and recharge underground water
(c) drilling deep tubewells so as to tap water at the rock-strata level
(d) setting up a system of tanks by banking water from seasonal rivers
599: Consider the following statements:
1. Anhydrous sodium carbonate is commonly known as baking soda.
2. Baking soda is used in fire extinguishers.
3. Bleaching power is manufactured in Hasenclever plant.
Which of the following statements given above is/are correct?
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3
600: Other than Jatropha curcas, why is Pongamia pinnata also considered a good option for the production of bio-diesel in India ?
1. Pongamia pinnata grows naturally in most of the arid regions of India.
2. The seeds of Pongamia pinnata are rich in lipid content of which nearly half is oleic acid.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2