Science For You

[Perfection]

What is the scientific name for the bristles of an earth worm ?
Chaetae

What is the common name for Nere is ?
Sand worm

How many true legs does a caterpillar possess ?
60

What are the larva of the house-flies called ?
Maggots

What are young trouts called ?
Alevins

What name is given to the 'second stomach' of a bird ?
Gizzard

Which vitamin is responsible for the coagulation of blood ?
Vitamin K

Where is Insulin secreted ?
Pancreas

Which hormone contains iodine ?
Thyroxine

Which enzyme can hydrolyse sucrose ?
Invertase

[Perfection]

What is invert sugar ?
Mixture of glucose and fructose

Who introduce the pH scale ?
Sorenson

What is the chemical name of Vitamin B1 ?
Thiamine

What is riboflavin ?
Vitamin B2

What is cyanocobalamin ?
Vitamin B12

What are the Vitamins present in B Complex ?
B1, B2, B6 and B12

What is ascorbic acid ?
Vitamin C

What is the Vitamin present in rice-polishing ?
Vitamin B2

Beriberi is caused by the deficiency of
Vitamin B1

What is calciferol ?
Vitamin D3

[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