The colour of Emerald is
Deep Green
Violet
Prussian Blue
Yellow
Correct Answer :
A. Deep Green
Related Questions
Which of the following is the lightest metal ?
Mercury
Lithium
Lead
Silver
Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
A piece of iron that is not a permanent magnet
The north pole of another permanent magnet
A positively charged glass rod
A negatively charged rubber rod
The fastest acting enzyme in the biological kingdom is
amylase
lipase
carboxypeptidase
carbonic anhydrase
The property of a substance to absorb moisture from the air on exposure is called
Desiccation
Efflorescence
Deliquescene
Osmosis
Lightening cause rainfall because
It activate H2O molecule
Photo-electricity reaction starts
Some of the gas molecules become bigger
It cause combination of oxygen and nitrogen
Which of the following elements is obtained from sea weeds ?
Argon
Vanadium
Iodine
Sulphur
The major ingredient of leather is
Nucleic acid
Carbohydrate
Collagen
Polymer
Quartz crystals normally used in quartz clocks etc. is chemically
A mixture of B and C
Silicon dioxide
Germenium dioxide
Sodium Silicate
The hardest substance available on earth is
Platinum
Quartz
gold
Diamond
The speed of light with the rise in the temperature of the medium
Increases
Remains unaltered
Drops sharply
Decreases
Cell membrane is
permeable
semipermeable
selectively permeable
impermeable
Which of the following elements is non-radioactive?
Uranium
Plutonium
Thorium
Zirconium
Which of the following is commonly called a polyamide ?
Orion
Terylene
Rayon
Nylon
Water has maximum density at
0°C
-4°C
100°C
4°C
The Panda belongs to the same family as that of
Cat
Bear
Rabbit
Dog
The metal that is present in Photo Films is
Silver
Magnesium
Platinium
Mercury
Nitrification means
Conversion of nitrogen to nitric acid.
Production of nitrogen from air
Convert the atmospheric nitrogen to effective nitrogen compound.
Liquifaction of nitrogen
Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous glass called
Carbon Monoxide
Phosgene
Phosphine
None of these
The element present in the largest amount in rocks and minerals is
Carbon
Hydrogen
Aluminium
Silicon
The marine animal called dugong which is vulnerable to extinction is a/an
Amphibian
Shark
Bony fish
Mammal
In an atomic nucleus, neutrons and protons are held together by
Magnetic forces
Gravitational forces
Coulombic forces
Exchange forces
The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
Which of the following parts of the sun is easily visible only during a total solar eclipse?
core
photosphere
sunspots
corona
When a gas is turned into a liquid, the process is called
evaporation
condensation
sublimation
deposition
In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If both inputs are positive the output is zero. This is
an AND circuit
an OR circuit
a high-pass filter
a NOR circuit
Which of the following is in liquid form at room temperature ?
Sodium
Cerium
Francium
Lithium
The fastest-running terrestrial animal is
lion
man
jaguar
cheetah
The most important ore of Aluminium is
Calamine
Calcite
Galena
Bauxite
Old-written material, which cannot be read easily can be read by
None of these
Ultraviolet rays
Infra Red rays
Cosmic Rays
The formula of Plaster of Paris is
2CaSO4, H2O
CaSO4
CaSO4, 2H2O
2CaSO4, 4H2O