chemistry mcqs/chemistry lecturer mcqs

    Important Chemistry MCQs 

 

Chemistry MCQs For Lecturer Test

 

 

1. A....... is the smallest particle of pure substance which can exist independently:





ANSWER= (C) Molecule

 

2. 1 amu is --------:





ANSWER= (A) 1.66*10-24

 

3. This number----- is the number of atoms in one mole of the element:





ANSWER= (C) 6.02*10^23

 

4. The amount of the particles obtained in a chemical reaction is called.....:





ANSWER= (B) Actual Yield

 

5. ....... Are the building blocks of matter:





ANSWER= (C) Atoms

 

6. The mass of one mole of electron is ?:





ANSWER= (B) 0.55mg

 

7. The phenomenon of Isotopy was discovered by......





ANSWER= (C) Soddy

 

8. A complete quantitative analysis of a compound generally involves ........ major steps.:





ANSWER= (D) four

 

9. .............. is a technique used for seperating the components of the mixture.:





ANSWER= (C) chromatography

 

10. Solvent extraction is an equilibrium process and it is controlled by:





ANSWER= (B) distribution law

 

11. Charles's law was given by French scientist J. Charles in ..........:





ANSWER= (A) 1787

 

12. There are ...... scales of thermometery which are used for temperature measurements.:





ANSWER= (D) three

 

13. Plasma was identified by the English scientist ............. in 1879.:





ANSWER= (B) William Crookes

 

14. The processes of diffusion and effusion are best understood by ........ of diffusion.:





ANSWER= (A) Graham's law

 

15. How much plasma exists in universe?:





ANSWER= (C) 99%

 

16. Pressure remaining constant, at which temperature the volume of a gas will become twice of what it is at 0 degree C.:





ANSWER= (C) 546K

 

17. How many types of inter molecular forces?:





ANSWER= (A) 4

 

18. The process of changing liquid into vapours is called......:





ANSWER= (B) Evaporation

 

19. There are------tpes of solids on the basis of arrangement of atoms:





ANSWER= (C) 2

 

20. The Shape of crystel in which,it usually grows is called------:





ANSWER= (D) Habit of a crystel

 

21. Mettalic and Covalent Solids are the example of.......





ANSWER= (B) Crystaline Solid

 

22. There are........ crystel systems:





ANSWER= (D) none of the above

 

23. Acetone and choloroform are soluable in each other due to :





ANSWER= (B) Inter molecular hydrogen bonding

 

24. There are........ Bravis Lattices:





ANSWER= (D) 14

 

25. The branch of science which deals with the......... crystals is called crystalography:





ANSWER= (A) Structure

 

26. ....... Produces flashes on Zn'S plate:





ANSWER= (B) +ve

 

27. Proton and Electron were discovered in........





ANSWER= (B) 1886

 

28. Chadwick was awarded nobel prize in......... in 1935





ANSWER= (B) Physics

 

29. The atomic number of rare earths have been determine by.......





ANSWER= (B) Moseley's Law

 

30.Quantum number's values for 2p orbitals are:





ANSWER= (A) n=2 L=1

 

 

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