121. Common indicator organism of water pollution is
(A) Lemna pancicostata (B) Eichhornia Claviceps
(C) Escherichia coli (D) Entamoeba histolytica
Ans. (C)
122. Haemocoel occurs in
(A) Porifera (B) Protozoa
(C) Coelenterata (D) Arthropoda
Ans. (D)
123. Sponges are
(A) Ammonotelic (B) Ureotelic
(C) Uricotelic (D) Both A and C
Ans. (A)
124. Fresh water Polyp is
(A) Hydra (B) Aurelia
(C) Physalia (D) Obelia
Ans. (A)
125. Segments of Tapeworm are called
(A) Scolex (B) Cysticercus
(C) Proglottides (D) Onchospheres
Ans. (C)
126. Syncytial epidermis occurs in
(A) Ascaris (B) Hydra
(C) Taenia (D) Leucosolenia
Ans. (A)
127. Each foot of Ostrich has
(A) Two unequal digits (B) Two equal Digits
(C) Three digits (D) Four digits
Ans. (A)
128. Snakes lack
(A) Scales (B) Tympanum
(C) Ribs (D) Locomotion
Ans. (B)
129. Hyla is a
(A) Tree Frog (B) Mud Puppy
(C) Salamander (D) Blind Worm
Ans. (A)
130. Sharks are
(A) Viviparous (B) Oviparous
(C) Ovoviviparous (D) None of these
Ans. (C)
131. Evisceration is found in
(A) Echinodermata (B) Annelida
(C) Coelenterata (D) Chordata
Ans. (A)
132. The number of moles in 0.64 g of SO2 is
(A) 0.01 (B) 0.1
(C) 10 (D) 100
Ans. (A)
133. Which of the following has maximum number of unpaired electrons?
(A) Mg2+ (B) Ti3+
(C) V3+ (D) Fe2+
Ans. (D)
134. The law of octaves was given by
(A) Lavoisier (B) Dobereiner
(C) Newlands (D) Luther Meyer
Ans. (B)
135. XeF2 molecule is
(A) Linear (B) Angular
(C) Triangular planer (D) None of these
Ans. (A)
136. At absolute zero temperature, the total kinetic energy of the molecules is
(A) minimum (B) maximum
(C) zero (D) Cannot be predicted
Ans. (C)
137. Which of the following is an intensive property?
(A) Temperature (B) Entropy
(C) Mass (D) Volume
Ans. (A)
138. The pH of 0.001 M NaOH solution is
(A) 7 (B) 8
(C) 9 (D) 11
Ans. (D)
139. Carbon is in the lowest oxidation state in
(A) CH4 (B) Ccl4
(C) CF4 (D) CO2
Ans. (C)
140. The normality of 30 volume H2O2 is
(A) 2.678 N (B) 5.336 N
(C) 8.034 N (D) 6.685 N
Ans. (B)
