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Chemistry-(Part-VII)

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

PSC Question and Answer about Chemistry-(Part-VII) 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 first state of matter



Solid


Question2:-The second state of matter



Liquid


Question3:- The third state of matter



Gas


Question4:- The fourth state of matter



Plasma


Question5:- The fifth state of matter



Bose Einstein Condensate


Question6:- The sixth state of matter



Fermionic Condensate


Question7:-The seventh state of matter



Super Fluidity


Question8:- The most abundant physical state in the universe is



Plasma


Question9:-In plasma state , matter exists as ----



Ions


Question10:- All stars in the Universe is in the state of



Plasma


Question11:-The physical state of liquid Helium is ------



Super Fluidity


Question12:- Liquid Helium is called -------



Super Liquid


Question13:- The physical state of Glass is



Super Cooled Liquid


Question14:-All electronic display is based on



Liquid Crystals


Question15:- The simplest form of matter is



Element


Question16:- The term Element was introduced by



Robert Boyle


Question17:- ---- consists of only one kind of atoms



An Element


Question18:- The classifications of Elements



Metal, Non Metal and Metalloids


Question19:-Non Metals are ---- Conductors of Electricity and heat



Bad


Question20:-The elements which behave like both Metals and Non Metals



Metalloids


Question21:- melting of Ice is an example of -----



Physical Change


Question22:-Corrosion of Metals is a ----- Change



Chemical Change


Question23:-Silicon and Germanium are examples of -----



Metalloids


Question24:- The smallest Unit of Matter



Atom


Question25:-The word Atom is derived from ------



Atomos


Question26:- The word Atomos belongs to ----- language



Greek Language


Question27:-The Greek word Atomos means



Indivisible


Question28:-The smallest particle of an element



Molecule


Question29:- The term Molecule was introduced by



Avogrado


Question30:- The Atomic theory was first postulated by



John Dalton


Question31:-John Dalton postulated the Atomic theory in



1808


Question32:-Plum Pudding Model of the Atom was suggested by



J.J. Thomson


Question33:-Solar Model or Nuclear Model of Atom was suggested by



RutherFord


Question34:-The Shell model of an atom is discovered by



Neils Bohr


Question35:-The three fundamental particles of the Atom



Protons, Neutrons and Electrons


Question36:-Wave Mechanical Model of the Atom was proposed by



Max Planck


Question37:-Nucleus was discovered by



Rutherford


Question38:-Almost the enire mass of an atom is concentrated in the



Nucleus


Question39:-Protons are ------- charged



Positively Charged


Question40:-The path on which the electrons revolve around the Nucleus is known as



Orbit or Shell


Question41:-Electron was discovered by



J.J. Thomson


Question42:-J.J. Thomson discovered Electron in



1897


Question43:- The name Electron was proposed by



Stoney


Question44:------ determined the the charge of Electron



Millikan


Question45:------ calculated the actual mass of Electron



J.J. Thomson


Question46:- The dual nature of Electron is proposed by



Victor de-Brogile


Question47:-Who proved experimentally the dual nature of Electron



I.H. Germer


Question48:- The lightest Fundamental particle of an Atom is



Electron


Question49:- Proton was discovered by



Ruther Ford


Question50:- Presence of Protons in an atom was observed by



Gold Stein


Question51:-Proton has ----- Charge



Positive Charge


Question52:- ----- is called the identity card of an atom



Proton


Question53:-Neutron was discovered by



James Chadwick


Question54:-Chadwick discovered Neutrons in



1932


Question55:-The heaviest fundamental particle of an atom is



Neutron


Question56:------ is the least stable particle of an atom



Neutron


Question57:-Positive Counterparts of an electron



Positrons


Question58:-Positrons are discovered by



Anderson


Question59:-Atoms of the same element having same atomic number and different mass numbers are called



Isotops


Question60:-The term Isotope was introduced by



Soddy


Question61:-Isotops differ in number of ----



Neutrons


Question62:- The Isotopes of Hydrogen



Protium, Deuterium and Tritium


Question63:----- has no Neutrons



Protium


Question64:- The simplest Isotope



Protium


Question65:-The Isotope of Hydrogen which is known as Heavy Hydrogen



Deuterium


Question66:-The Radio Active Isotope of Hydrogen is



Tritium


Question67:-Atoms of different elements having same mass number and different Atomic Numbers are called



Isobars


Question68:- ----- are different forms of the same element with different physical appearances



Allotropes


Question69:- The cobining capacity of one Atom to another is called



Valency


Question70:-Noble gases have ---- Valency



Zero


Question71:-Hydrogen shows ----- Valency



Uni Valency


Question72:-Alkaline Earth Metals show ---- Valency



Divalency


Question73:-The common Valency of Carbon is



Four


Question74:- ----- is the number of Protons or Electrons in an Atom



Atomic Number


Question75:- The Atomic Number of an Atom is generally denoted by the letter



Z


Question76:-Mole Day is celebrated on -------



October 23


Question77:- The Sum of number of protons and neutrons in an Atom



Mass Number


Question78:-Mass Number is denoted by the letter



A


Question79:-The smallest Atom



Helium (He)


Question80:-The Biggest Atom



Francium (Fr)


Question81:-The simplest Atom



Hydrogen (H)


Question82:----- is an arrangement of Elements with similar properties placed together



Periodic Table


Question83:- ---- classified the elements into Metals and Non Metals



Lavoisier


Question84:-The Law of Ovtaves is proposed by



New Land


Question85:-The Father of Periodic Table is



Mendeleeve


Question86:-Mendeleeve is a ----- Chemist



Russian


Question87:-Mendeleeves's Periodic Table is based on ------



Atomic Weights


Question88:-Mendeleeve's Periodic Table consists of --- Periods and ---- Groups



7 periods and 9 groups


Question89:-The Father of Modern Periodic Table is



Moseley


Question90:-Modern Periodic Table is based on ------- of the Elements



Atomic Number


Question91:-The Atomic Number was first calculated by



Moseley


Question92:- Modern Periodic Table consists of ---- Periods and ---- Groups



7 Periods and 18 Groups


Question93:- The shortest period in the Modern Periodic Table is



First


Question94:- The longest period in the Modern Periodic Table



Sixth Period


Question95:-The sixth period contains ---- elements



18


Question96:- The first period contains ----- elements



Two


Question97:-Group One elements are called



Alkali Metals


Question98:-Group 2 elements are called



Alkaline Earth Metals


Question99:-Group 18 elemnts are called



Noble Gases


Question100:-Elements from Atomic Number 58 to 71 are known as



Lanthinides or Rare Earths