Chemistry
Grade-10
Easy
Question
_______ is the element not found in the native state.
- Cu
- Pt
- Au
- Na
Hint:
ores of elements.
The correct answer is: Na
The ore of sodium is rock salt. The sodium compound present in this ore is sodium chloride. The chemical formula of the ore is NaCl.
Related Questions to study
Chemistry
Copper pyrites ore is concentrated by which of the following methods?
Copper pyrites ore is concentrated by which of the following methods?
ChemistryGrade-10
Chemistry
Which one of the following is not a method of concentration of ore?
Which one of the following is not a method of concentration of ore?
ChemistryGrade-10
Chemistry
The practical application in the froth floatation process for the concentration of ores is:
The practical application in the froth floatation process for the concentration of ores is:
ChemistryGrade-10
Chemistry
Pick the odd one out:
Pick the odd one out:
ChemistryGrade-10
Chemistry
What is the role of aluminum in the metallurgical process?
What is the role of aluminum in the metallurgical process?
ChemistryGrade-10
Chemistry
Pick the odd one out:
Pick the odd one out:
ChemistryGrade-10
Chemistry
The metal that is not extracted from leaching is:
The metal that is not extracted from leaching is:
ChemistryGrade-10
Chemistry
Oil that is used in the froth floatation process as a frothing agent:
Oil that is used in the froth floatation process as a frothing agent:
ChemistryGrade-10
Chemistry
______________ are the collectors that increase the metal component of the ore’s non wettability.
______________ are the collectors that increase the metal component of the ore’s non wettability.
ChemistryGrade-10
Chemistry
In which process do we use the rotation paddle?
In which process do we use the rotation paddle?
ChemistryGrade-10
Chemistry
_______________ is used to concentrate an ore when either the particles of the ore or the impurities present in it are magnetic in nature.
_______________ is used to concentrate an ore when either the particles of the ore or the impurities present in it are magnetic in nature.
ChemistryGrade-10
Chemistry
____________ is usually used for concentration of ores when the particles of the ore have a higher mass compared to the earthy or rocky gangue particles.
____________ is usually used for concentration of ores when the particles of the ore have a higher mass compared to the earthy or rocky gangue particles.
ChemistryGrade-10
Chemistry
Which of the following is concentrated by magnetic separation method?
Which of the following is concentrated by magnetic separation method?
ChemistryGrade-10
Chemistry
What is the use of a rotating paddle in the froth floatation technique?
What is the use of a rotating paddle in the froth floatation technique?
ChemistryGrade-10
Chemistry
Which of the following can be concentrated by the electromagnetic separation technique?
Which of the following can be concentrated by the electromagnetic separation technique?
ChemistryGrade-10
