Chemistry MCQS

211. The organs for producing electrical currents are in the _ of the electric eel:
A. Trunk
B. Head
C. Tail
D. Pectoral fins

212. The sting of ants/wasps contains _:
A. Formic acid
B. Melittin
C. Hyaluronic
D. None of the above

213. Uric acid is found in?
(A) Fats
(B) Lemon
(C) Orange
D) Urine

214. _ is a Lewis base.
A) NH3
B) BF3
C) H+
D) None of the above

215. At dynamic equilibrium state?
A) The reaction stops to proceed forward
B) The amount of reactants and products are equal
C) The rate of forward and reverse reaction is equal
D) None of the above

216. The color of Hydrogen Iodide is?
A) Red
B) Purple
C) Orange
D) Colourless

217. Formula of urea is?
A) NH2COONH4
B) NH2COONH2
C) NH2CONH2
D) None of the above

218. _ disease causes diarrhea.
A) Dysentery
B) Jaundice
C) Hepatitis
D) Cholera

219. Temporary hardness can be removed by?
A) Limestone
B) Lime water
C) Slaked lime
D) None of the above

220. A primary pollutant is?
A) HNO3
B) H2CO3
C) CH4
D) H2SO4