771. Which one of the following is an Alkali?
A. Water
B. Vinegar
C. Lemon Juice
D. Slaked lime*
772. If an alkali is slowly mixed with an acidic solution, the pH of the acidic solution will:
A. Increase
B. Decrease
C. Increase to 7 and then decrease
D. Decrease to 7 and then increase
773. The usual raw material for ceramics, generally found beneath the topsoil is?
A. Sand
B. Silt
C. Clay*
D. Plaster of Paris
774. Polyamides are synthetic polymers commonly known as:
A. Synthetic rubber
B. Nylon*
C. Cellulose
D. Protein
775. The telephone was invented in 1876 in America by:
A. Marconi
B. Galileo
C. John Beard
D. Graham Bell*
776. Which cells are considered the vital link in the body defense system?
(A) X-cells
B) T-cells
(C) Y-cells
(D) All of the above
777. Paediatrics is the medicine for?
(A) Old age
(B) Women’s
C) Children
(D) Infection
778. To maintain the normal composition of blood is the function of?
(A) Liver
B) Kidney
(C) Heart
(D) Stomach
779. The unit of human body energy requirements is?
(A) Joule
B) Calorie
(C) Kilowatt
(D) None of the above
780. Which theory explains the movement of continents?
(A) Theory of relativity
(B) Hygiene Theory
C) Plate Tectonics Theory
(D) Population Theory
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