2136: Which one of the following is another name of RDX ?

(a) Selenium
(b) Cyclonite
(c) Cyanohydrin
(d) Cyclohexane
2137: Plants take nitrogen in the form of:

(a) Nitrites

(b) Ammonia

(c) Nitrates

(d) Element
2138: Convertibility of rupee implies

(a) being able to convert rupee notes into gold
(b) allowing the value of rupee to be fixed by market forces
(c) freely permitting the conversion of rupee to other currencies and vice versa
(d) developing an international market for currencies in India
2139: Which one of the following statements is correct? "Deccan Odyssey" is:

(a) A book on Chatrapati Shivaji
(b) A warship recently acquired by the Indian Navy
(c) A recently started air service between Mumbai and Colombo
(d) A luxury train which travels through Maharashtra and includes Goa in its journey
2140: Match the following research institutes A, B, C and D with their respective location labelled as 1 to 6 in the given rough outline map

A. Central Drug Research Institute
B. National Atlas and Thematic Mapping Organisation
C. National Institute of Ocean Technology
D. Temperate Forest Research Centre

Select the correct answer using the codes given below :

Codes:

(a) A-4, B-3, C-2, D-6
(b) A-4, B-5, C-1, D-6
(c) A-2, B-3, C-4, D-5
(d) A-1, B-6, C-2, D-3