Back to GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
1
Medium
1 of 1
Understanding
+4 | -1
Presence of small impurity usually makes a metal quite hard because the impurities:
View answer and explanation
Correct option: B
Reduce the number of slide planes
Option B (Reduce the number of slide planes) is correct because impurities disrupt the regular arrangement of atoms, hindering the movement of dislocations and reducing the number of slide planes.
More Questions from GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
Practice All Chapter MCQs →
Mac Arthur and Forest cyanide process is used in the extraction of:
Which form of iron has lowest percentage of carbon?
Assertion (A): Wolframite impurities are separated from cassiterite by electromagnetic separation.
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction:
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction: