Chemistry
Grade-10
Easy
Question
When a vessel is exposed to moist air, it forms a green coating on the surface. The vessel must be made of:
- Zinc
- Copper
- Magnesium
- Iron
Hint:
Copper oxide is green in color.
The correct answer is: Copper
- Zinc is unreactive so it doesn't form any coating on the surface.
- Copper is reactive, reacts with oxygen and forms a green coating on the surface.
- Magnesium is not much known for making utensils.
- Iron forms brown coating on the surface of the vessels.
Related Questions to study
Chemistry
What type of chemical reaction is rusting of iron?
What type of chemical reaction is rusting of iron?
ChemistryGrade-10
Chemistry
The safe effect of the corrosion is
The safe effect of the corrosion is
ChemistryGrade-10
Chemistry
Galvanizing is:
Galvanizing is:
ChemistryGrade-10
Chemistry
What is the chemical name given to Rust ?
What is the chemical name given to Rust ?
ChemistryGrade-10
Chemistry
What two things cause Iron to Rust ?
What two things cause Iron to Rust ?
ChemistryGrade-10
Chemistry
Similarities between corrosion and rancidity are
Similarities between corrosion and rancidity are
ChemistryGrade-10
Chemistry
Examples of corrosion are
Examples of corrosion are
ChemistryGrade-10
Chemistry
Which of the following methods is not used for the prevention of corrosion?
Which of the following methods is not used for the prevention of corrosion?
ChemistryGrade-10
Chemistry
Which of these objects would be affected by corrosion?
Which of these objects would be affected by corrosion?
ChemistryGrade-10
Chemistry
A substance added to food containing fats and oils to prevent rancidity is called:
A substance added to food containing fats and oils to prevent rancidity is called:
ChemistryGrade-10
Chemistry
The gasses that can be used for the storage of food products are
The gasses that can be used for the storage of food products are
ChemistryGrade-10
Chemistry
The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:
The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:
ChemistryGrade-10
Chemistry
Among the following that is not a method to prevent corrosion?
Among the following that is not a method to prevent corrosion?
ChemistryGrade-10
Chemistry
What are the coefficients that would properly balance this equation?
__Ca + __H2O → __Ca(OH)2 + __H2
What are the coefficients that would properly balance this equation?
__Ca + __H2O → __Ca(OH)2 + __H2
ChemistryGrade-10
Chemistry
How many aluminum atoms are in Al2(SO4)3?
How many aluminum atoms are in Al2(SO4)3?
ChemistryGrade-10
