WorksheetsGeneral Chemistry Quiz
Total questions: 20
Worksheet time: 12mins
The smallest particle into which an element can be divided and still be the same substance is called _____.
Molecule
Atom
Electron
Neutron
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(i) and (iv)
Match the following:
i)-A, ii)-B, iii)-D, iv)-C
i)-B, ii)-A, iii)-C, iv)-D
i)-B, ii)-D, iii)-A, iv)-C
i)-A, ii)-D, iii)-C, iv)-B
An element has mass number 39 and atomic number 19. What are the number of protons present in the element?
39
19
20
None of the above
Inert gases have their valency=0.
True
False
In the equation:
3Fe + XH2O ↔ Y + 4H2
The values of X and Y are:
3 and Fe2O3
3 and Fe3O4
4 and Fe2O3
4 and Fe3O4
An atom of an element has two shells and both are completely filled, what would be the atomic number of that element?
10
14
20
16
The pH of a few common substances were measured and noted as above.
Which option lists the substances from least to most acidic?
Battery acid, Soft drinks, Human saliva, Lime water
Soft drinks, Human saliva, Battery acid, Lime water
Lime water, Battery acid, Human saliva, Soft drinks
Lime water, Human saliva, Soft drinks, Battery acid
When a piece of magnesium metal is added to dilute hydrochloric acid in a test tube, fizzing occurs and hydrogen gas is released from the mixture. What would happen to the burning splinter brought near the mouth of the test tube?
Will get extinguished
Will rekindle
Will go off with a pop sound
None of the above
Which of the following statements is true about A and B?
A and B are isotopes
A and B are isobars
Both isotopes and isobars
None of the above
CO2 can be easily liquified and even solidified because
It has weak forces of attraction
It has comparatively more force of attraction than other gases
It has more intermolecular space
It is present in atmosphere
Which of the following has highest kinetic energy?
Particles of ice at 0°C
Particles of water at 0°C
Particles of water at 100°C
Particles of steam at 100°C
Bose-Einstein Condensate have
Very low kinetic energy
Low kinetic energy
High kinetic energy
Highest kinetic energy
Which of the following is most suitable for summer?
Cotton
Nylon
Polyester
Silk
Which of the following is incorrect about plasma?
Fluorescent tube and neon sign bulbs consist of plasma
The gas gets ionized when electrical energy flows through it
It consists of super-energetic and super-excited particles
The plasma glows with colour which does not depend upon nature of gas
Acid Rain is caused by
CO2 and CO
SO2 and O2
SO2 and NO2
NO2 and O2
Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:
Carbon only
Carbon and nitrogen
Carbon, hydrogen, and oxygen
Carbon and hydrogen
In a solution of saltwater (a saline solution), salt is the:
Solute
Solvent
Colloid
Sol
Second hardest material in the world
Graphite
Boron Nitride
Carbide
Iron
Which are the ions responsible for transfer of information in neurons
Ca and Mg
Cl and Br
Fe and Cr
Na and K
