Home
MCQS
Chemistry MCQ Quiz Hub
Chemistry MCQ Questions set-8
Choose a topic to test your knowledge and improve your Chemistry skills
1. Atomic bomb is based on which of the following principle?
Nuclear fusion
Nuclear fission
Natural radioactivity
All options are correct
2. Ionic compounds ______. I. have high boiling point II. have high melting point III. conduct electricity in solution
Only I and II
Only I and III
Only II and III
All I II and III
3. Which of the following can be beaten and converted into thin sheets?
Zinc
Phosphorus
Sulphur
Oxygen
4. Which metal is liquid at room temperature?
Bromine
Chlorine
Mercury
Cesium
5. Generally covalently bonded molecules ______. I. have high boiling and melting point as compare to ionically bonded molecules II. poor conductors of electricity III. have weak intermolecular force
Only I and II
Only I and III
Only II and III
All I II and III
6. The melting point of ice is ____ K.
253.16
263.16
273.16
283.16
7. Find the similarity in the following : Carbon Silicon Boron Arsenic
All of them are gases
All of them are non-metals
All of them are metals
No similarity
8. Charge on proton is equal to the charge on ______.
Electron
Positron
Neutron
Alpha particle
9. In the following reaction fill in the blank. Acid + Base ? _______ + Water
Carbon dioxide
Metal Oxide
Hydrogen Gas
Salt
10. How many atoms are present in a (NH4)2SO4 molecule?
15
14
13
12
11. 2O represents two ......... of oxygen.
ions
electrons
atoms
molecules
12. Group 8A of the periodic table contains the
least reactive metals
most reactive nonmetals
most reactive metals
least reactive nonmetals
13. Which among the following has lowest electron affinity?
Fluorine
Chlorine
Bromine
Argon
14. Saturated carbon compounds can form which types of chain structures? I. Straight chain II. Branched chain
Only I
Only II
Neither I nor II
Both I and II
15. ___ is used for making chemical apparatus like beakers flasks etc.
Potash glass
Hard glass
Jena glass
Soda glass
16. Which of the following is a chemical formula of quicklime?
Ca2O
Ca2CO3
CaO2
CaO
17. _____ is used for making vinegar.
Tartaric acid
Malic acid
Oxalic acid
Acetic acid
18. Chemical name of vinegar is
Onam
Pongal
Bihu
Hornbill
19. Which of the following is used as anaesthetics?
N2
N2O
CH4
CO2
20. What is the maximum number of states of matter?
Three
Four
Five
Variable
21. Which of the following acts as best adsorbent?
Charcoal
Activated Charcoal
Activated Coconut Charcoal
Carbon black
22. Chemical formula for sulphurous acid is:
H2SO4
H2SO3
H3SO3
H3SO4
23. The atoms of Germanium Arsenic Selenium and Bromine contain ...... shells.
3
7
5
4
24. Which of the follow is the last element in Newlands Law of Octaves classification?
Rhodium
Radium
Iron
Thorium
25. Which among the following has the maximum density?
Water
Ice
Ethylene
Acetone
26. Which of the following elements has the lowest melting point?
Xenon
Iodine
Barium
Magnesium
27. What is the common name of Sodium Bicarborate?
Baking Soda
Washing Powder
Plaster of Paris
Fly Ash
28. What is the compound formed when Ag+ and Cl- combine?
Argon Chlorate
Argon Chloride
Silver Chloride
Silver Chlorate
29. Which of the following gas was released during Bhopal gas tragedy?
Methyl isocyanate
Sodium isothiocyanate
Nitrogen isothiocyanate
Potassium isothiocyanate
30. In arc welding Argon is used because of its
Low reactivity with metal
Ability to lower the melting point of the metal
High flammability
High calorific value
31. Which of the following induces souring of milk?
Acetic Acid
Citric Acid
Ascorbic Acid
Lactic Acid
32. Which of the following bonds are weakest in nature?
Single bond
Double bond
Triple bond
Hydrogen bond
33. In Mendeleevs periodic table the properties of the elements are considered a periodic function of their:
Atomic mass
Ionization enthalpy
Atomic size
Atomic number
Submit