1. : Methylated spirit is a form of?
(A) gas
(B) crystal
(C) Oxygen
(D) liquid
2. : Key to ability of DNA to pass and store genetic information is due to?
(A) its hydrogen bonding
(B) its deoxyribose sugar
(C) its double-stranded structure
(D) its oxygen bonding
3. : Particles in solids have?
(A) lesser energy
(B) greatest energy
(C) least energy
(D) short distances
4. : In what form is glucose stored in animal muscles and liver cells?
(A) Glycogen
(B) Glucagon
(C) Starch
(D) None of these
5. : The difficulty of discharge is lowest in?
(A) potassium ions
(B) silver ions
(C) sodium ions
(D) copper ions
6. : Vitamin E is necessary for?
(A) Eyes and skin
(B) Antioxidant
(C) Energy production in cells
(D) Blood clotting
7. : Consider the reaction: AgNO₃ + NaCl → AgCl + NaNO₃. The state of NaNO₃ will be?
(A) solid
(B) gaseous
(C) liquid
(D) aqueous
8. : Nucleic acids were first obtained from?
(A) Pus of infected wounds
(B) Blood of infected wounds
(C) Skin
(D) Hair of infected wounds
9. : Other than C and O, main elements of a brick wall include?
(A) Al
(B) Si
(C) Ca
(D) Both B and C
10. : Which of the following used the word ‘vitamin’ for the missing factors that were needed to sustain healthy growth?
(A) Casmir Funk
(B) C. Eijkman
(C) F.G Hopkins
(D) None of these