General Science

Physical and Chemical Changes
What are the chemicals used in fireworks?
copper chloride
calcium chloride
barium chloride
all of above
Author: rikazzz Comment
Reproduction in Plants
The stalk on which the round shaped structures hang is known as
anthers
filaments
stamens
carpels
Author: rikazzz Comment
Physical and Chemical Changes
The color of magnesium oxide is
white
blue
grey
pink
Author: rikazzz Comment
Reproduction in Plants
Tiny root hairs grown on the root of the seed
absorbs water and oxygen
absorbs water only
absorbs mineral salts only
absorbs water and mineral salts
Author: rikazzz Comment
Electric Circuits and Currents
The strength of electromagnet can be increased by introducing a soft iron core
outside the coil
inside the coil
round the coil
above the coil
Author: rikazzz Comment
Elements and Compounds
Element which is non metal and is found on right side of periodic table is
argon
sodium
neon
both a and b
Author: rikazzz Comment
Investigating Space
In a reflecting telescope, a large concave mirror bounces all the light coming through the
sky
sun
telescope barrel
telescope tip
Author: rikazzz Comment
Investigating Space
The brightest star in night is
Deneb
Sirius
Aldebaran
Rigel
Author: rikazzz Comment
Importance of Water
A food item which is wasted most, is
meat
vegetables
grains
water
Author: rikazzz Comment
Electric Circuits and Currents
A circuit which connects an electric source to its components, one after another to form a single loop is
series circuit
parallel circuit
open circuit
close circuit
Author: rikazzz Comment

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