1.

    Which of the following methods is NOT typically used for concentrating a dilute ore?

    A

    Froth flotation

    B

    Magnetic separation

    C

    Gravity separation

    D

    Distillation

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Concentration of ores, Froth flotation, Magnetic separation, Gravity separation, Distillation

    Related Questions

    1.

    The viscosity of a liquid is influenced by temperature. How does viscosity typically change with a rise in temperature?

    A

    Increases

    B

    Decreases

    C

    Remains constant

    D

    Fluctuates randomly

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    PYQ YEAR: 2017
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Viscosity, Temperature, Liquids

    2.

    The number of moles of KMnO4KMn{O_4} that will be needed to react completely with one mole of oxalate ion in acidic solution is

    A

    52\frac{5}{2}

    B

    32\frac{3}{2}

    C

    25\frac{2}{5}

    D

    12\frac{1}{2}

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Redox reactions, Balancing chemical equations, Stoichiometry

    3.

    A solution is prepared by dissolving 10 g of sucrose (C12H22O11C_{12}H_{22}O_{11}) in 200 g of water. What is the mole fraction of sucrose?

    A

    0.0026

    B

    0.0292

    C

    0.0500

    D

    0.997

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    PYQ YEAR: 2015
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Mole Fraction, Molar Mass, Solutions

    4.

    100 mL of 0.1 M solution of a reductant is diluted to 1 litre, which of the following changes?

    A

    Molarity

    B

    Millimole

    C

    Milliequivalent

    D

    None of these

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Molarity, Dilution, Millimoles, Milliequivalents

    5.

    Which of the following is NOT a method for expressing the concentration of a solution?

    A

    Molarity

    B

    Molality

    C

    Mass percentage

    D

    Density

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Solutions, Concentration Methods

    6.

    Which of the following methods is most suitable for separating a mixture of iodine and potassium chloride?

    A

    Sublimation

    B

    Distillation

    C

    Chromatography

    D

    Solvent Extraction

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Separation Techniques, Sublimation, Physical Properties

    7.

    A 1 molal aqueous solution contains 0.5 moles of solute. What is the mass of the solvent (water) in kilograms?

    A

    0.5 kg

    B

    1 kg

    C

    2 kg

    D

    1.5 kg

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    PYQ YEAR: 2022
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Molality, Moles, Solution

    8.

    What volume of 0.40 MM Na2S2O3{\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3} would be required to react with the I2{{\rm{I}}_2} liberated by adding excess of KI to 50 mL of 0.20 MM CuSO4{\rm{CuS}}{{\rm{O}}_4} solution?

    A

    12.5 mL

    B

    25 mL

    C

    50 mL

    D

    2.5 mL

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :stoichiometry, molarity, redox reactions

    9.

    0.5 grams of sodium hydroxide was treated with 12.5mL12.5 \mathrm{mL} of 0.75M0.75 \mathrm{M} HCl solution. The mass of sodium hydroxide left unreacted is equal to

    A

    0.125 g

    B

    0.25 g

    C

    0.5 g

    D

    0 g

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    PYQ YEAR: 2024
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Stoichiometry, Neutralization Reaction

    10.

    The speed of sound in air is dependent on temperature. Which of the following correctly describes this relationship?

    A

    Speed of sound decreases with increasing temperature

    B

    Speed of sound increases with increasing temperature

    C

    Speed of sound is independent of temperature

    D

    Speed of sound initially increases then decreases with increasing temperature

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Concentration Methods
    PYQ YEAR: 2017
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Speed of Sound, Temperature, Waves

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