Which is the most economical method of removing solid matter from water?
(A) Using deactivated carbon
(B) Electrolysis
(C) Distillation
(D) Sedimentation
__________________ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.
(A) Antidote
(B) Analgesic
(C) Antihistamine
(D) Depressant
Fe has 26 protons in its nucleus. What are the number of electrons in Fe2+ (II) ion?
(A) 24
(B) 26
(C) 28
(D) 13
Alpha particles are ___________.
(A) twice the mass of beta particles
(B) negatively charged
(C) just like helium nuclei
(D) lower in ionizing power as compared to gamma rays
Which element is found in the highest amount in the universe?
(A) Helium
(B) oxygen
(C) Hydrogen
(D) Nitrogen
Which of the following energy is most used in organic quantities?
(A) Solar Energy
(B) Petroleum Energy
(C) Atomic Energy
(D) Coal Energy
What is the bond between two amino acids in a protein called?
(A) Ester bond
(B) Glycosidic bond
(C) Peptide bond
(D) Phosphodiester bond
______fibre is used in making bullet proof vests.
(A) Nylon-66
(B) Terylene
(C) Kevlar
(D) Lexan
Which fibre is used for making bristles of brushes.
(A) Kevlar
(B) Nylon-66
(C) Terylene
(D) Lexan
What is the full form of PVC?
(A) Phosphonyl vinyl Carbonate
(B) Polyvinyl S Carbonate
(C) Polyvinyl Carbonate
(D) Polyvinyl Chloride
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