Thermodynamics Chemistry JEE Mains Questions. We covered all the Thermodynamics Chemistry JEE Mains Questions in this post for free so that you can practice well for the exam.
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Thermodynamics Chemistry JEE Mains Objective Questions for Students
A smuggler could not carry gold by depositing iron on the gold surface because:
(a) Gold has a lower standard reduction potential than iron.
(b) Gold has a higher standard reduction potential than iron.
(c) Iron rusts.
(d) Gold is denser.
Option b – Gold has a higher standard reduction potential than iron
Corrosion is basically an:
(a) Interaction
(b) Union between two light metals and a heavy metal.
(c) Altered reaction in the presence of H₂O.
(d) Electrochemical phenomenon.
Option d – Electrochemical phenomenon
To protect iron against corrosion, the durable metal plating on it is:
(a) Tin plating
(b) Copper plating
(c) Zinc plating
(d) Nickel plating
Option c – Zinc plating
Galvanized iron sheets are protected from rusting due to the presence of a layer of:
(a) Lead
(b) Chromium
(c) Zinc
(d) Tin
Option c – Zinc
Silverware turns black after a period of time due to the formation of:
(a) Nitrate coating on silver.
(b) Sulphide coating on silver.
(c) Chloride coating on silver.
(d) Oxide coating on silver.
Option b – Sulphide coating on silver
On exposure to moist air, copper gains a green coat on its surface due to the formation of which one of the following compounds?
(a) Copper carbonate
(b) Copper oxide
(c) Copper sulfate
(d) Copper nitrate
Option a – Copper carbonate
Aluminium surfaces are often ‘anodized’. This means the deposition of a layer of:
(a) Chromium oxide
(b) Aluminium oxide
(c) Nickel oxide
(d) Zinc oxide
Option b – Aluminium oxide
On the basis of position in the electrochemical series, the metal that does not displace hydrogen from water and acid is:
(a) Al
(b) Pb
(c) Ba
(d) Hg
Option d – Hg
Which one among the following metals is prominently used in mobile phone batteries?
(a) Copper
(b) Zinc
(c) Nickel
(d) Lithium
Option d – Lithium
Food cans are coated with tin but not with zinc because:
(a) Zinc is costlier than tin.
(b) Zinc has a higher melting point than tin.
(c) Zinc is more reactive than tin.
(d) Tin is more reactive than zinc.
Option c – Zinc is more reactive than tin
We covered all the thermodynamics chemistry jee mains questions above in this post for free so that you can practice well for the exam.
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