🧪 Chemistry MCQ Quiz Hub

1. In which form the chemical compound RDX is used?
As an composition
As an reactor
As an explosive
As an nuclear weapon

2. As a vegetable preservative poly______ foam is used.
Uthane
Uriathenes
Urathanes
Urethanes

3. Chemistry is a branch of science which can be used for providing the services to mankind. Comment on the statement.
TRUE
FALSE
May Be
Strongly not

4. Bio-chemical compounds are used as....
Skin Treatments
Food preservatives
Cooking Oils
All of the above

5. Tell the composition of soap?
Sodium salt with fatty acids.
Potassium salt with fatty acids
Both a & b
Sodium and Potassium salt mixed with chemicals

6. Which of the following compound is not used as an an alkali?
Sodium hydroxide
Potassium hydroxide
Carbon hydroxide
Nitrogen hydroxide

7. Define toxicity?
A chemical reaction
A process used in the manufacturing of detergents
A harmful effect of soaps and detergents required to measure the effectiveness.
A process used in the manufacturing of soaps

8. Which one is not the form of Biocides?
Salt
 Iodine
 Sugar
 Bleech

9.  How biocides work?
Control the multiplication of insects
Kill the insects
 Manage the original form of material
Control the bacteria

10. What is Rodenticide?
A medicine to kill worms
A medicine to kill animals
A lubricant
A pesticide

11.  Most commonly used Rodenticides are _______ in nature.
 Anti pesticides
Anti solvent
Anti Coagulant
Non anti coagulant

12. Which acid is present in lemon?
marlic acid
citric acid
lactic acid
tartaric acid

13. Natural rubber is a ________ which is having high elasticity.
Substance
Material
Elastomer
Chemical using carbon as main compound

14. How will you define the process of Vulcanization?
Sample of butane mixed with sulphur and litharge
Sample of propane mixed with sulphur and litharge
 Sample of plastic formed carbon mixed with sulphur and litharge
Sample of rubber mixed with sulphur and litharge

15. What is NBR?
Normal Acrylonitrile-butadiene rubber
Natural Acrylonitrile-butadiene rubber
N Acrylonitrile-butane rubber
Acrylonitrile-butadiene rubber

16.  A synthetic rubber is having__________weight.
Higher resistance
Lower density
Higher molecular
Higher atomic

17. Which of the following is not a type of elements?
Metals
Non Metals
Metalloids
Gases

18.  Which of the following is the heaviest metal?
osmium
mercury
 iron
nickel

19. Which one of the following received the Greener Reaction Conditions Award in 1996?
Dow Chemical
Exon Chemicals
US EPA
None of these

20. Which of the following is used for clean oxidation?  
 Supercritical carbon dioxide
Supercritical hydrogen
Aqueous hydrogen peroxide
All of these

21. Green solvents are derived from ______.
 Renewable resources
Carbon resources
Non-renewable resources
All of these

22.  Eating tobacco and throwing on the road can produce______pollutant.
Air
Soil
Noise
Water

23. Which of the following is not green house gas?
CO
 O3
CH4
H2O Vapour

24. Which of the following is not the components of photochemical smog that occurs in warm, dry and sunny climate?
 NO2
O3
SO3
Unsaturated hydrocarbon

25. Which of the following treatment is used for removal of biological impurities?
 Sedimentation
Boiling
Sterilization
distillation              

26. Which of the following indicator used in determination of hardness?
 EBT
Phenolphthalein
Methyl orange
Thymol blues

27. Who is known as the father of Modern Chemistry?
Kolvey  
Wholer     
Leviatiae 
Pasteur.

28. The inventor of the atomic theory is:
Rutherford  
Madam Curie
 John Dalton   
Albert Einstein

29. Nucleon is the name which is employed for:
Electron and proton  
proton and neutron
Electron and neutron   
None of these

30. The mass number of an atom is:
Number of nucleons in the nucleus
Number of protons in the nucleus
Number of neutrons in the nucleus
None of these

31.  Atom is electrically:
Positive 
negative     
bipositive
neutral

32. The atomic properties depend upon:
Number of nucleons in the nucleus
Number of protons in the nucleus
Number of neutrons in the nucleus
 None of these

33. The number of neutrons and protons in the nucleus of 88Ra226 are:
138 and 88 
88 and 138
226 and 88
88 and 226

34. Who was the inventor of radioactivity?
Madam Curie   
Irine Curie
Henery Bacqurel 
Rutherford

35. The penetrating power of which of the following invisible radiations emitting from the nucleus has its maximum value:
a-rays   
f)-rays   
y-rays  
None of these   

36. Which of the following is negatively charged?
Alpha-rays 
Beta-rays     
 Gama-rays
X-ray

37. How many charges alpha-rays consist of?
Two unit positive charges
Unit negative charge
Unit positive charge
None of these

38. Which of the following is not a radioactive element?
Astatine
Francium
 Titanium
Zirconium

39. Which of the following is the unit of radioactivity?
Curie
Becquerel
Rutherford
All of these

40. The substance (element) obtained after emission of a beta-particle from 11Na22:
Mg
Mn
 Ag
Pb

41. The half life of a radioactive substance is 4 months then the time spent in decaying ¾th of the substance would be:
3 months
 4 months
 8 months
12 months

42. The estimation of the age of the earth is done by:
Uranium dating
Carbon dating
Atomic clock
Bio clock

43.  The isotope of any atomic nucleus is in which:
Number of neutrons be same but number of protons be different
Number of protons be same but the number of neutrons be different
 Number of protons and neutrons both are same
Number of protons and neutrons both are different

44. The group displacement law is propounded by:
Sody & Fujan
Rutherford & Sody
Rutherford & Fujan
Rutherford & Madam Curie

45. Which of the following is estimated by the radio carbon dating?
Age of the human being
Age of the fossils
Disease of the human body
Purity of the metals

46. The number of isotopes in the hydrogen:
2
3
4
5

47. Which of the following is not the isotope of hydrogen?
Protium
Deuterium
Iterium
Tritium

48.  8O16, 8O17, 8O18 are called:
Isotopes
Isotones
Isobars
Isoneutrons

49. What is the radioactive isotope of hydrogen is called?
Deuterium
Rotium
Radium
Tritium