1.

    The process of removing gangue from ore is known as:

    A

    Concentration

    B

    Refining

    C

    Smelting

    D

    Roasting

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Concentration of ores, Gangue

    Related Questions

    1.

    A solution is prepared by dissolving 10 g of glucose in 190 g of water. What is the mass percentage of glucose in the solution?

    A

    5%

    B

    10%

    C

    2%

    D

    95%

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Solutions, Concentration, Mass Percentage

    2.

    If we dissolve 20g of NaOH in 200ml of water, what will be the mass percentage of NaOH in the solution (assuming the density of water is 1g/ml)?

    A

    9.09%

    B

    10%

    C

    11.11%

    D

    20%

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Solutions, Concentration, Mass Percentage, Density

    3.

    If 20 g of solute is dissolved in 80 g of solvent, what is the mass percentage of the solute?

    A

    20%

    B

    80%

    C

    25%

    D

    40%

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Solutions, Mass Percentage

    company logo

    NEET Subjects

    Our Bots

    Company