Kerala Public Service Commision examination questions, online psc exam

Chemistry-(Part-X)

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

PSC Question and Answer about Chemistry-(Part-X) 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:- Aluminium is an ----- Metal



Amphoteric


Question2:-Which metal is used as a compound in manufacturing paints , antacids , deodarants etc



Aluminium


Question3:-Which Metal is used in Electrical Transmission Lines because of its light weight



Aluminium


Question4:-The first Element of Group 14 of Periodic Table



Carbon


Question5:-Carbon is found in the Earth's atmosphere as



Carbondioxide


Question6:- Which Element in the Periodic Table has the maximum Catency



Carbon


Question7:-The Crystalline Allotropes of Carbon



Diamond, Graphite, fullerene and graphene


Question8:-Iron Sheets are ------ to prevent them from rusting



Galvanized


Question9:-Iron Sheets are galvanized by coating with a thin film of ------



Zinc


Question10:-Amorphous Allotropes of Carbon are



Coal , Charcoal and Lamp Black


Question11:-The radio active Isotope of Carbon



Carbon 14


Question12:- The half Life of Carbon 14



5730 Year


Question13:-Palstcs are made from ----- Polymers



Carbon


Question14:-The carbon atoms are joined in a ------ structure to form Diamond



Tetrahedral


Question15:-The hardest naturally occuring substance



Diamond


Question16:- Diamond is a good conductor of



Heat


Question17:- Diamond is a bad conductor of



Electricity


Question18:----- is insoluble in all known Solvent



Diamond


Question19:----- is used for cutting glass



Diamond


Question20:-Graphite has a ----- structure



Layer


Question21:-Graphite is used as ----- due to its slippery nature



Lubricant


Question22:- ------ is used for making Electrodes



Graphite


Question23:------- is used in lead pencils



Graphite


Question24:- Which is also known as Black Lead



Graphite


Question25:-Hraphite is a ---- conductor of Heat and Electricity



Good


Question26:-Fullerene takes the shape similar to that of a -----



Ball


Question27:-The newly discovered alotrope of Carbon



Graphene


Question28:-The element Nitrogen was discovered by ------



Daniel Rutherford


Question29:-Nitrogen was discovered by



1772


Question30:-In the free state , Nitrogen constitutes nearly -----% of the air



80


Question31:-Nitrogen Gas is relatively ------



Inert


Question32:------ is the largest Single Constituent of the Earth's Atmosphere



Nitrogen


Question33:- The Atomic Number of Nitrogen is



Seven


Question34:-Nitrogen obtained from air through fractional distillation is called ------



Atmospheric Nitrogen


Question35:-Nitrogen obtained from nitrogeneous Compounds is called -----



Chemical Nitrogen


Question36:----- is a non poisonous gas



Nitrogen


Question37:------ is created by fusion processes in stars



Nitrogen


Question38:------ is regerded as the 7 th most abundant element by mass in the Universe



Nitrogen


Question39:-Liquid ----- is often used as a refrigerent



Nitrogen


Question40:------- is a component of all Proteins



Nitrogen


Question41:----- is used to preserve the freshness of Packaged Food



Nitrogen


Question42:-Oxygen was first prepared by



Karl Scheele


Question43:-Oxygen was discovered by



Priestly


Question44:-The elemental nature of Oxygen wass established by



Lavoisier


Question45:----- is a colourless, tasteless and odourless gas



Oxygen


Question46:-Liquid ------ has light blue colour .



Oxygen


Question47:----- does not burn but helps things to burn



Oxygen


Question48:-The Atomic Number of Oxygen is



8


Question49:-Oxygen was ------ in Nature



Paramagnetic


Question50:-The most abundant element on the Earth Crust is



Oxygen


Question51:- The first synthetic atom is



Oxygen -17


Question52:- The most abundant element present in our body



Nitrogen


Question53:-Oxygen is a member of the ----- group on the Periodic Table



Oxygen


Question54:------ is the third most abundant element in the Universe by mass after Hydrogen and Helium



Oxygen


Question55:---- as is used for cutting Metals



Oxygen


Question56:----- gas is used in Submarines



Oxygen


Question57:------ gas is used in Spaceflight and diving



Oxygen


Question58:---- gas is used as life support in Aircraft



Oxygen


Question59:-Chlorine is a member of ------ Group



Halogen


Question60:-Chlorine is a ------ gas



Poisonous


Question61:---- is used for bleaching



Chlorine


Question62:----- is used for sterilizing drinking water



Chlorine


Question63:------- is used as a Bleaching Agent



Bleaching Powder


Question64:Sodium Hypo chlorite is used as an -----



Antisceptic


Question65:- Chlorofrorm is used as an -----



Anaesthetic


Question66:- Carbon Tetrachloride is used as a ------



Solvent


Question67:-Poly Vinyl Chloride is an important --------



plastic


Question68:-Chlorine is used as an ------- agent



Oxidising


Question69:-Chlorine burns with a bright ----- colour in a flame test



Yellow


Question70:-Most common compound of Chlorine



Sodium Chloride


Question71:----- oxides the colour of flowers and makes them colourless



Chlorine


Question72:- The symbol of Iron is



Fe


Question73:-Fe is derived from the Latin name -----



Ferrum


Question74:-Iron is a ----- Metal



ransition


Question75:-the richest ores of Iron are



Haematite and Magnetite


Question76:-The three commercial varieties of Iron are



Cast Iron , Wrought Iron and Steel


Question77:-Cast Iron is also known as



Pig Iron


Question78:-The impure form of Iron is



Cast Iron


Question79:------- contains highest propotion of Carbon



Cast Iron


Question80:- The Purest form of Iron is



Wrought Iron


Question81:- The most important form of Iron



Steel


Question82:-Steel containing 0.2 -0.5 % Carbon is known as



Mild Steel


Question83:-Stainless Steel contains



Iron, Chromium, Nickel and Carbon


Question84:-Nickel Steel contains



Iron, Nickel and Carbon


Question85:- Tungsten Steel contains



Iron, Tungsten and Carbon


Question86:-Steel containing 0.5 - 1.5% carbon is known as ------



Hard Steel


Question87:-Copper's atomic symbol is



Cu


Question88:-Cu is derived from the Latin Word



Cuprum


Question89:-Copper is a ----- metal



Transition


Question90: ---- is one of the first Metals used by man



Copper


Question91:------ is an essential nutrient to all living organisms



Copper


Question92:-Hydrated Copper Sulphate is also known as



Blue Vitriol


Question93:-The best known Copper Compound



Blue Vitriol


Question94:-Sulpher belongs to ----- Group of the Periodic Table



16


Question95:- Sulpher belongs to ------- Period of the Periodic Table



3


Question96:----- is a member of Chalcogen Family



Sulpher


Question97:- In the free state ----- is found in Volcanic rocks abd gases



Sulpher


Question98:-Cinnabar is the Ore of



Mercury


Question99:-The organic compounds present in Egg Protein, Garlic, Onion contin small quantities of ----which gives them a unique ordour



Sulpher


Question100:------ is non poisonous to humans but Toxic to lower Organisms



Nuclear Suppliers Group