191. Which among the following is wood cellulose?

(A) Rayon
(B) Balata
(C) Cork
(D) None of the above

192. Which among the following is correct ?

(A) Caffeine which is a diuretic is a constituent of coffee but not found in tea
(B) Vitamin C which is also called ascorbic acid can be replaced with citric acid in our food
(C) Citric acid is used in Cola drinks
(D) All are wrong statements

193. The pitcher plant is characterized by which of the following plants ?

(A) Autotrophes
(B) Insectivorous
(C) Allergen
(D) None of the above

194. Sexual cannibalism is a concept in which the female kills the male after mating and is normally found in _________?

(A) Dragon fly
(B) Spider
(C) Honey Bee
(D) None of the above

195. The cultivation of which of the plants on wastelands has a potential to generate biofuel in large quantities?

(A) Jatropha curcas
(B) Copaifera langsdorffii
(C) Camelina sativa
(D) None of the above