Kerala Public Service Commision examination questions, online psc exam

Chemistry-(Part-IX)

UPSC, PSC, BANK, RAILWAY,etc. Examination Questions

PSC Question and Answer about Chemistry-(Part-IX) including for Kerala Administrative Service (KAS), Secretariat Assistant, Panchayath Secretary, BDO, Auditor, Assistant, LDC and LGS examination level questions. We will update balance portion of the study material.....

Question1:-The Radio Active gaseous element



Radon


Question2:- The element which shows highest electron affinity



Chlorine


Question3:-The densest Element



Osmium


Question4:-The heaviest gaseous element



Radon


Question5:- Most stable element



Lead


Question6:-The first man made element



Technetium


Question7:- The most complex element available from earth



Uranium -238


Question8:-The natural element having highest Atomic Weight is



Uranium


Question9:------ is addes to petrol as an octane booster to prevent knocking



TEL


Question10:------ element is kept in Kerosene Oil



Sodium


Question11:-The lightest element



Hydrogen


Question12:- The heaviest Element



Uranium


Question13:-The most rarest Element



Astatine


Question14:- The most radio active Element



Polonium


Question15:-The least dense Element



Hydrogen


Question16:-The most reactive Element



Flurine


Question17:-The most electronegative Element



Flourine


Question18:-The Element which has the most number of compounds



Carbon


Question19:-What is Eka Aluminium



Gallium


Question20:-What is Eka Silicon



Germanium


Question21:----- is the radio active halogen



Astatine


Question22:-Which Element is used in the manufature of Insecticdes



Chlorine


Question23:-Which Element is obtained from Sea Weeds



Iodine


Question24:-Which element sublimes on heating



Iodine


Question25:-Explosives generally contain ----- element



Nitrogen


Question26:----- has the highest melting point of all Metals



Tungston


Question27:- Which elemet is used for filaments in Electric Bulbs



Tungston


Question28:-Which Element is used in Atomic Clocks



Caesium


Question29:-The Element which is used to coat the phototcopying drum of Xerox is



Selenium


Question30:-Which Elements are used in the manufacture of Transistors and IC chips



Silicon and Garmanium


Question31:- The disease related with Mercury



Minamatha


Question32:Another name for Minamatha



Cat walk disease


Question33:-The disease related with Cadmium



Ethai Ethai


Question34:-The disease related with Lead



Plumbism


Question35:-The disease related with Silicon



Silicosis


Question36:-The disease related with Flourine



Flourosis


Question37:-The disease related with Copper



Wilson's disease


Question38:-The disease related with Aluminium



Alzheimer's


Question39:-The disease related with Arsenic



Black Foot Disease


Question40:-Atomic Number of Hydrogen is



One


Question41:-The only Element that does not contain any Neutron



Hydrogen


Question42:-The most abundant Element in the Universe is



Hydrogen


Question43:- The third most abundant element in the surface of globe



Hydrogen


Question44:-The 9 th most abundant element in Earth's Crust



Hydrogen


Question45:- Hydrogen was discovered by



Henry Cavendish


Question46:- The name Hydrogen was given by .



Lavoisier


Question47:-The first Element in the periodic Table



Hydrogen


Question48:-Hydrogen is produced commercially by the process



Bosch Process


Question49:------ has the lowest density among gases



Hydrogen


Question50:----- is used as rocket fuel in space programmes



Liquid Hydrogen


Question51:-Petrol is produced by through ----- of Coal



Hydrogenation


Question52:------ is produced through the hydrogenation of Vegitable Oil



Vanaspathi Ghee


Question53:-Which is known as the Fuel of Future



Hydrogen


Question54:----- is used in the extraction of certain rare metals



Hydrogen


Question55:---- is used in Fuel Cells for generating Electrical Energy



Hydrogen


Question56:- Hydrogen was discovered in



1766


Question57:-Sodium was discovered by



Humphry Davy


Question58:-Sodium was discovered in



1807


Question59:---- is the sixth common element on Earth



Sodium


Question60:-What is called Chili Salt Peter



Sodium Nitrate


Question61:-What is known as Glauber's Salt



Sodium Sulphate


Question62:-What is known as Borax



Sodium Tetraborate


Question63:-What is known as Washing Soda



Sodium Carbonate


Question64:-What is known as Baking Soda



Sodium Bicarbonate


Question65:-The most abundant Alkali Metal



Sodium


Question66:- Sodium burns with a bright ----- Colour



Yellow


Question67:-The metal which regulates Blood Pressure in Human Beings



Sodium


Question68:---- is used to purify molten metals



Sodium


Question69:------ is used to manufature Soaps



Sodium


Question70:-What is used as Coolent in Atomic Reactors



Liquid Sodium


Question71:-Sodium is kept in



Kerosene


Question72:-Sodium is extracted through --------



Down Process


Question73:-The most common compound of Sodium is



Sodium Chloride


Question74:-The symbol of Sodium is



Na


Question75:-The Latin name of Sodium



Natrium


Question76:-Calcium is classified as -------



Alkaline Earth Metals


Question77:-Calcium is included in the ----- th group of Periodic Table



Second


Question78:-Calcium was discovered by -----



Sir Humphry Davy


Question79:Sodium was discovered in



1808


Question80:-The name Calcium was derived from the word -----



Calcis


Question81:The meaning of the Latin word Calcis is



Lime


Question82:---- is the Fifth most abundant element in the Earth,s Crust



Calcium


Question83:------ element is essential for Strong Bones



Calcium


Question84:------ element is essential for Human Nutrition



Calcium


Question85:-Dairy Products are ecellent source of ------



Calcium


Question86:------ element is used as a decarbonizer and in metallurgy and in making alloys



Calcium


Question87:-Which element is used as s reagent in purification of Inert Gases



Calcium


Question88:-Who proposed the name Aluminium



Sir Humphry Davy


Question89:-Aluminium belongs to the ---- group of the Periodic Table



13 th


Question90:-The most abundant element in the Earth's Crust



Aluminium


Question91:-Aluminium was discovered by



Hans Christian Oersted


Question92:-Aluminium was discovered in



1825


Question93:-Bauxite is the ore of



Aluminium


Question94:- Cryolite is the ore of



Aluminium


Question95:-Corondum is ore of



Aluminium


Question96:----- is paramagnetic



Aluminium


Question97:-Aluminium is a ------ of Electricity



Good Conductor


Question98:-Commercially Aluminum is extrcted from -------



Bauxite


Question99:-Aluminium is extracted commercially through ------



A combination of Baeyer's process and the Heroult -Hall process


Question100:-The metal used to make CD



Aluminium