Science For You

[Perfection]

Which is a steroid vitamin ?
Vitamin D

Which vitamin prevents Pellagra ?
Niacin

What is a Sunshine Vitamin ?
Vitamin D

What is Ziegler- Natta catalyst ?
TiCl4+Al(C2H5)3

What is meant by malleability ?
Converting into sheets

What is the last element of the Periodic table that occurs in nature ?
Uranium

What is used for the measuring the wavelength of light ?
Interferometer

In which solvent gold can dissolve ?
Aqua regia

What is the unit of magnetic moment ?
Bohr magnetron

What is Bordeaux mixture ?
Mixture of CuSO4+Ca(OH)2

[Perfection]

What is Pitch-blende ?
An ore of Uranium

What is EDTA ?
Ethylene Di amine Tetra Acetic acid

What metal is present in hemoglobin ?
Iron

What is vermilion ?
Red form of HgS

What is salt gas ?
Hydrogen Chloride

What is King's Yellow ?
As2S3 + As2O3

What is mosaic gold ?
SnS2

What is the chemical name of Aspirin ?
Acetyl Salicylic acid

What is laughing gas ?
Nitrous gas

What is the metal name after a goddess ?
Vanadium (Goddess Vanadis)

[Perfection]

What is called sugar of lead ?
Lead acetate

What is Paris Green ?
Double salt of Copper acetate and Copper arsenite


What is oil of vitriol ?
Sulphuric acid

What is agate ?
Naturally occurring silica

What is carborundum ?
Silicon Carbide

What is milk of lime ?
Calcium Hydroxide

What is absolute alcohol ?
99% Ethyl alcohol

What is Mohr's salt ?
Ferrous ammonium sulphate

What is water gas ?
Mixture of Carbon monoxide and hydrogen

What is dry ice ?
Solid Carbon dioxide

[Perfection]

Who discovered electrons
J.J. Thomson

Who stated the uncertainty principle ?
W Heisenberg

Who discovered X rays ?
WK Roentgen

What is the expansion of LASER ?
Light Amplification by Stimulated Emission of Radiation

Name the particle that has the highest velocity ?
Photon

Who discovered neutrons ?
J Chadwick

What is Zeeman effect ?
Splitting of spectral lines by magnetic field

What is the instrument is used to measure the atmospheric pressure ?
Barometer

What is the SI unit of pressure ?
Pascal (Pa)

What is the melting point of ice in Kelvin ?
273 K

[Perfection]

Who suggested the absolute scale of temperature ?
Lord Kelvin

Name the property that depends on the number of particles ?
Colligative property

What is a gel ?
Colloidal solution of liquid in solid

What is the unit of protective capacity of a hydrophilic solution ?
Gold number

Name a nuclei used to make Atom bomb ?
Uranium 235

What is the unit of radioactivity ?
Curie

What is the SI unit of heat ?
Joule

Which gas is produced in Haber's process ?
Ammonia (NH3)

What is an amphiprotic substance ?
Substance which act as an acid and base

What is the basis for modern classification of the elements ?
Atomic Number

[minisoji]

Science

Quadruped and biped are familiar terms but what is a ‘palmiped’?
Any bird with webbed feet

Who was the first scientist to classify fossils?
George Cuvier

What is Aristotle’s lantern?
A special arrangement of teeth in sea urchins

Which fossil organism is usually regarded as the connecting link between reptiles and birds ?
Archaeopteryx

Which was the heaviest of all prehistoric animals?
Brachiosaurus

Who is usually considered to be the founder of modern entomology?
Jan swammerdam

Which was the first dinosaur to be scientifically described?
Megalosaurus

Which animal generally considered as connecting link between the annelid worms and the arthropods?
Peripatus

The largest living terrestrial mammal is the African elephant. Which is the largest terrestrial mammal ever to roam the earth?
Baluchitherium grangeri

Which are the most primitive multi-cellular animals?
Sponges

'Proboscis worms’ are also known as
Ribbon worms

[minisoji]

Science

Which are the simplest animals to have a nervous system and a gut?
Cnidarians

Which are the simplest three layered animals alive today?
Flat worms

Gordian worms are also known as
Hair worms

The name of which phylum is derived from a Greek word meaning ‘Sea nymph’?
Nemertinea

Which animal has only one opening which serves both as mouth and anus?
Cnidarians

What are the stinging cells on the tentacles of corals, sea anemones, jelly fish and hydra called?
Nematocysts

What are the soft internal partitions of a coral polyp or sea anemone called?
Mesenteries

Which simple animals has helped the scientist to deduce that there were 400 days in a year, 300 million years ago?
Coral

Corals are best known for the massive ‘rocky’ reefs they built in the tropics. Which is the largest such reef made by them?
Great Barrier Reef

Why are ‘soft’ corals so colorful?
Because of colored rods or spines in their tissues