Everyday Science (General Knowledge) FPSC Past MCQs Papers

(22) Ice can be changed to water by:
(a)Adding more water molecules (b)  Changing the motion of the water molecules
(c)Rearranging the atoms in water molecules (d) Destroying the atoms in water molecules
(e)None of these.
(23) The building blocks of elements are called:
(a)Atoms(b) Molecules  (c) Compounds  (d) Isotopes  (e)None of these.
(24) Boiling of an egg is a change which is:
(a)Physical (b) Chemical (c) Physiological  (d) Morphological
(e) None of these.
(25) The temperature of liquid Nitrogen is:
(a)-32 °C  (b)-80 °C  (c)-100 °C  (d) -196 °C  (e) None of these.
(26) Which one of the following is an alkali?
(a)Water (b) Vinegar (c) Lemon juice (d) Slaked lime
(e) None of these.
(27) If an alkali is slowly added to 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 (e) Will remain same.
(28) The usual raw material for ceramics, generally found beneath the top soil is?
(a)Sand (b) Silt (c) Clay  (d) Plaster of Paris (e)Melamine.
(29) Polyamides are synthetic polymers commonly known as:
(a)Synthetic rubber (b) Nylon(c) Cellulose (d) Protein (e) None of these.
(30) Telephone was invented in 1876 in America by:
(a)Marconi (b) Galileo (c) John Beard  (d) Edison (e) Graham Bell.
(31) Information can be sent over long distances in the form of:
(a)Electrical signals through wires (b) Light signals through optical fibres
(c) Radio waves through air  (d) Any combination of these three (e) None of these.
(32) Information can be stored in:
(a)Audio and video cassettes (b) Floppy and compact discs (c) Hard disks
(d) Laser and optical disks (e) All of these four.