Science For You

[Perfection]

Which radioactive element is seen in Kerala ?
Thorium

What is the chemical name of salt petre ?
Potassium Nitrate

What is hypo ?
Sodium thio sulphate

What is the percentage composition of Nitrogen in the atmosphere ?
80 % by volume

What is butter antimony ?
SbCl3

What is the composition of gun powder ?
Potassium Nitrate, charcol and Sulphur

How is a sulphide ore concentrated ?
Froth flotation

What are miscelle ?
Aggregated colloids

What are tartar emetic ?
Potassium anti monyl tartrate

How is tartar emetic used ?
Used to induce vomiting

[Perfection]

What is microcosmic salt ?
Sodium ammonium hydrogen phosphate

What is Lunar caustic ?
Silver nitrate

Name the raw materials used for the manufacture of Bakelite ?
Phenol and Formaldehyde

What is amatol ?
80% of TNT, 20% of NH4NO3

What is TNT ?
Tri Nitro Toluene

What is Fenton's reagent ?
FeSO4 + H2O2

What is Tollen's reagent ?
Alkaline silver nitrate

What is LPG ?
Liquefied Petroleum Gas

What is Prussian blue ?
Ferric Ferro cyanide

What is cream of tartar ?
Potassium hydrogen tartrate

[Perfection]

What is Fehling's solution ?
Mixture of CuSO4 & Sodium potassium tartrate

What is the use of Fehling's solution ?
To detect sugar

What is Sublimation ?
Converting a solid directly into its vapour

Name a metal which is a liquid at 0 C?
Mercury

Name a non-metal which is a liquid at 0 C?
Bromine

What is Lithopone ?
Barium sulphate + Zinc sulphide

What is purple of cassius ?
Colloidal gold and stannic hydroxide

What is iron rust chemically called ?
Hydrated Ferric oxide

What is washing soda ?
Sodium carbonate

What is Bayer's reagent ?
Alkaline KMnO4