IMPORTANT SCIENCE QUESTIONS FOR LI, FORESTER EXAM 2024 WITH PDF

1) How Many Halogen Gases Are There In Earth - 6 ( Helium, Neon, Argon, Krypton, Radon, Xenon) 

2) Halogen Gases Also Called As - Noble Gas 

3) Halogen Gases Contains How Electrons In Their Valence Shell - Zero 

4) Non Metal Found In Which Block Of Modern Periodic Table - P Block 

5) The Lightest Metal In The Periodic Table - Lithium 

6) Elements Of d Block Element Is Called - Transition Element 

7) Who Is The Father Of Periodic Table - Mendeleev 

8) At Present Total Number Of Elements In Earth - 118 

9) Alkali Metals Contains How Many Electrons In Outermost Shell - 1 

10) Heaviest Atom In The Earth - Uranium 

11) Which Of The Following Metal Found In Liquid State - Mercury 

12) What Is The Symbol Of Mercury - Hg 

13) How Many Periods Are There In Periodic Tables - 7 

14) Mass Of An Atom Mean - Neutrons And Protons 

15) Number Of Electrons Defines The Elements Of - Chemical Properties 

16) The Radius Of Atomic Nuclei Is - 10-13 cm 

17) Who Discovered The Neutron - Chadwick 

18) Who Discovered Electron - 

19) Who Discovered Proton - 

20) Isotopes Of The Atoms Of Same Elements Have - Same Number Of Protons 

21) Alkali Metals Have Found In Which Group - First Group 

22) The Nucleus Of Atom Is Consists Of - Protons And Neutrons 

23) Atom Can Neither Created  Nor Destroyed Whose Theory - Dalton's Atomic Theory 

24) Atomic Theory Was First Proposed By - John Dalton 

25) Atom Word Coined By - Democritus 

26) The Speed Of Sound In Medium Depends Upon - Properties Of Medium 

27) The Velocity Of Sound In Any Gas Depends Upon - Density And Elasticity Of Gas 

28) Sound Is Measured In - Decibel 

29) Unit Of Measure Of Eye Power - Dioptre 

30) The Refractive Index Of Glass Is Least For - Red Light 

31) LASER Stands For - Light Amplification By Stimulated Emission Of Radiation 

32) Optical Fibres Work On The Principle Of - Total Internal Reflection 

33) When Sound Travel From Air To Water , Which Remains Constant - Frequency 

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