ppsc general knowledge MCQS
> Alpha particles have the greatest ionizing
>> Gamma rays have the greatest penetrating
>> Gamma has the greatest speed.
>> At night the land cools faster than the water in
>> The chemical name of chalk is Calcium
>> The branch of science which studies the
interaction between matter and radian energy
is called Spectroscopy.
>> The horizontal rows of the periodic table are
>> The vertical columns of the periodic table are
>> Bromine is liquid at room temperature.
>> Battery charger converts electrical energy into
>> A loudspeaker changes Electrical energy into
>> The strongest parts of a magnet are North and
>> Electromagnetic induction was discovered by
>> The most abundant form of matter in the
universe is Plasma.
>> When gas is ionized, Plasma forms.
>> Wind is caused by Difference in atmospheric
>> Wind speed is measured by Anemometer.
>> The fact that universe is expanding was
discovered by Hubble.
>> X-rays were discovered by Rontgen.
>> The Nobel Prize in physics for the discovery of
the law of photoelectric effect was awarded to
>> The symbol of gold is Au.
>> Plaster of Paris is produced by heating Gypsum.
>> Skin is the largest excretory organ of the body.
>> The brain is enclosed in a bony case called
>> Radius is the bone that is present in forelimb.
>> Cow is herbivore.
>> Xylem structure helps in transport of water in
>> The organisms that can make their own food
are called producers.
>> Bacteria are prokaryotes.
>> Bile juice is secreted by gall bladder.
>> WBC blood cells provide immunity.
>> Cuticle structure prevents water loss in plants.
>> DNA structure was first described by Watson