How do you separate substances with different densities?

How do you separate substances with different densities?
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If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the(A) Sedimentation(B) Flocculation(C) Dispersion(D) Centrifugation

Description : If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the (A) Sedimentation (B) Flocculation (C) Dispersion (D) Centrifugation

Last Answer : (D) Centrifugation

How do water relative densities as a solid and a liquid differ from most other substances?

Description : How do water relative densities as a solid and a liquid differ from most other substances?

Last Answer : The solid phase of water (ice) is less dense than its liquid phase, therefore ice floats on liquid water. For other substances, the solid phase is most dense and it sinks in its liquid.

Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from different direction during the rainy season (c) Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Description : Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from ... Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Last Answer : Ans: (b)

Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about (A) 1 to 2° (B) 2 to 5° (C) 5 to 10° (D) 10 to 15°

Description : Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about (A) 1 to 2° (B) 2 to 5° (C) 5 to 10° (D) 10 to 15°

Last Answer : (B) 2 to 5°

Solid particles of different densities are separated by (A) Filters (B) Thickness (C) Cyclones (D) Sorting classifier

Description : Solid particles of different densities are separated by (A) Filters (B) Thickness (C) Cyclones (D) Sorting classifier

Last Answer : (D) Sorting classifier

When a beam of light travels through media of two different densities, if theangle of incidence isgreater than the critical angle, _______ occurs. A) reflection B) refraction C) incidence D) criticism

Description : When a beam of light travels through media of two different densities, if theangle of incidence isgreater than the critical angle, _______ occurs. A) reflection B) refraction C) incidence D) criticism

Last Answer : reflection

The range of a particular Rotameter can be increased by (A) Use of floats of different densities (B) No means (C) Increasing the diameter of the float (D) Decreasing the diameter of the float

Description : The range of a particular Rotameter can be increased by (A) Use of floats of different densities (B) No means (C) Increasing the diameter of the float (D) Decreasing the diameter of the float

Last Answer : (A) Use of floats of different densities

What is the name of the process where a liquid passes through a semipermeable membrane to separate it from other substances?

Description : What is the name of the process where a liquid passes through a semipermeable membrane to separate it from other substances?

Last Answer : A: Filtration.

Chromatography can be used to A. form mixtures B. change mixture compositions C. separate mixtures into pure substances D. all of these

Description : Chromatography can be used to A. form mixtures B. change mixture compositions C. separate mixtures into pure substances D. all of these

Last Answer : separate mixtures into pure substances

Fill in the blanks- _____and _____ densities should be found out, in order to get a better insight into the human-land ratio. -Geography

Description : Fill in the blanks- _____and _____ densities should be found out, in order to get a better insight into the human-land ratio. -Geography

Last Answer : (c) Physiological and Agricultural

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

Which are the regions with the highest and lowest densities respectively? -Do You Know?

Description : Which are the regions with the highest and lowest densities respectively? -Do You Know?

Last Answer : answer:

The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -

Description : The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -

Last Answer : The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : - A. ` ... `1 : 2` C. `2 : 3` D. `3 : 1`

What Molecular orbital interactions are not possible because the atomic orbitals have overlapping electron densities.?

Description : What Molecular orbital interactions are not possible because the atomic orbitals have overlapping electron densities.?

Last Answer : Need answer

What does gases low densities show about the distance between gas particles?

Description : What does gases low densities show about the distance between gas particles?

Last Answer : A low-density gas would have molecules that are farther apartand fewer in numbers per unit volume.

RETICULAR DENSITIES SEEN IN THE RIGHT LOWER LUNG?

Description : RETICULAR DENSITIES SEEN IN THE RIGHT LOWER LUNG?

Last Answer : Any cavitary lesion - Lucency (darkened area) within the lung parenchyma, with or without irregular margins that might be surrounded by an area of airspace consolidation or infiltrates, or by nodular or ... (reticular) densities, or both. The walls surrounding the lucent area can be thick or thin.

Heavy metals got their name because compared to other atoms they have - (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii

Description : Heavy metals got their name because compared to other atoms they have - (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii

Last Answer : (2) Higher atomic masses Explanation: Arsenic, beryllium, cadmium, chromium, lead, manganese, mercury, nickel, and selenium are some of the metals called 'heavy' because of their high relative atomic ... and can cause damage or death in animals, humans, and plants even at very low concentrations.

Which are the regions with the highest and lowest densities respectively?

Description : Which are the regions with the highest and lowest densities respectively?

Last Answer : Europe and Oceania

Which are the regions with the highest and lowest densities respectively?

Description : Which are the regions with the highest and lowest densities respectively?

Last Answer : Europe and Oceania

. In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness

Description : . In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness

Last Answer : (D) Hardness, rigidity & brittleness

Separation of solid particles based on their densities is called (A) Sizing (B) Sorting (C) Clarification (D) Dispersion

Description : Separation of solid particles based on their densities is called (A) Sizing (B) Sorting (C) Clarification (D) Dispersion

Last Answer : (B) Sorting

Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their(A) Particle sizes(B) Densities(C) Terminal velocities(D) None of these

Description : Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their (A) Particle sizes (B) Densities (C) Terminal velocities (D) None of these

Last Answer : (C) Terminal velocities

Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called (A) Classification (B) Froth floatation (C) Thickening (D) Clarification

Description : Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called (A) Classification (B) Froth floatation (C) Thickening (D) Clarification

Last Answer : (A) Classification

Dimensions of relative density are A. mass × length-3 B. mass × length3 C. It has no dimensions, since it's a ratio of two densities D. length3 × mass-1

Description : Dimensions of relative density are A. mass × length-3 B. mass × length3 C. It has no dimensions, since it's a ratio of two densities D. length3 × mass-1

Last Answer :  It has no dimensions, since it's a ratio of two densities

The following are true about the sodium channels: a. they are made up of polypeptide chains b. have the highest densities at the nodes of Ranvier c. open in response to depolarization d. remain open as long as depolarization is maintained

Description : The following are true about the sodium channels: a. they are made up of polypeptide chains b. have the highest densities at the nodes of Ranvier c. open in response to depolarization d. remain open as long as depolarization is maintained

Last Answer : have the highest densities at the nodes of Ranvier

Both the conduction and displacement current densities coexist in which medium? a) Only conductors in air b) Only dielectrics in air c) Conductors placed in any dielectric medium d) Both the densities can never coexist

Description : Both the conduction and displacement current densities coexist in which medium? a) Only conductors in air b) Only dielectrics in air c) Conductors placed in any dielectric medium d) Both the densities can never coexist

Last Answer : c) Conductors placed in any dielectric medium

Calculate the electric field when the conductivity is 20 units, electron density is 2.4 units and the velocity is 10m/s. Assume the conduction and convection current densities are same. a) 2.4 b) 4.8 c) 3.6 d) 1.2

Description : Calculate the electric field when the conductivity is 20 units, electron density is 2.4 units and the velocity is 10m/s. Assume the conduction and convection current densities are same. a) 2.4 b) 4.8 c) 3.6 d) 1.2

Last Answer : d) 1.2

The total charge of a surface with densities 1,2,...,10 is a) 11 b) 33 c) 55 d) 77

Description : The total charge of a surface with densities 1,2,...,10 is a) 11 b) 33 c) 55 d) 77

Last Answer : c) 55

The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the (A) Inverse of fluid viscosity (B) Square of particle size (C) Difference in the densities of the particle & fluid (D) All (A), (B) and (C)

Description : The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the (A) Inverse of fluid viscosity (B) Square of particle size (C) Difference in the densities of the particle & fluid (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Electrostatic separation of minerals from each other is based on their differences in the following property. (A) Densities (B) Magnetic permeabilities (C) Electrical conductivities (D) Hardness

Description : Electrostatic separation of minerals from each other is based on their differences in the following property. (A) Densities (B) Magnetic permeabilities (C) Electrical conductivities (D) Hardness

Last Answer : (C) Electrical conductivities

The same volume of all gases is representative of their (A) Specific gravities (B) Densities (C) Gas characteristic constants

Description : The same volume of all gases is representative of their (A) Specific gravities (B) Densities (C) Gas characteristic constants

Last Answer : Option D

The same volume of all gases would represent their  (a) densities  (b) specific weights  (c) molecular weights  (d) gas characteristic constants  (e) specific gravities.

Description : The same volume of all gases would represent their  (a) densities  (b) specific weights  (c) molecular weights  (d) gas characteristic constants  (e) specific gravities.

Last Answer : Answer : c

The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are (a) 0.5 to 0.8 Wb/m2 (b) 0.8 to 1.0 Wb/m2 (c) 1.1 to 1.35 Wb/m2 (d) 1.4 to 1.8 Wb/m2

Description : The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are (a) 0.5 to 0.8 Wb/m2 (b) 0.8 to 1.0 Wb/m2 (c) 1.1 to 1.35 Wb/m2 (d) 1.4 to 1.8 Wb/m2

Last Answer : (c) 1.1 to 1.35 Wb/m2

Laser radiation is: w) monochromatic x) directed in a narrow beam y) produced with large power densities z) all of the above

Description : Laser radiation is: w) monochromatic x) directed in a narrow beam y) produced with large power densities z) all of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE

Under which of the following conditions does the behavior of a real gas resemble that of an ideal gas? Is it: w) under all conditions of temperature and pressure x) only at very high pressure y) only when the gas is near condensation z) only at low densities when the molecules are relatively far apart

Description : Under which of the following conditions does the behavior of a real gas resemble that of an ideal gas? Is it: w) under all conditions of temperature and pressure x) only at very high pressure ... when the gas is near condensation z) only at low densities when the molecules are relatively far apart  

Last Answer : ANSWER: Z -- ONLY AT LOW DENSITIES WHEN THE MOLECULES ARE RELATIVELY FAR APART

1. BMD testing is done to diagnose which disease? 2. Which are the regions with the highest and lowest densities respectively? 3. With whose reign is the Gandhara school of art associated? 4. Which Directive Principle of State Policy has NOT been implemented so far? 5. If you swim one km, how many miles do you swim?

Description : 1. BMD testing is done to diagnose which disease? 2. Which are the regions with the highest and lowest densities respectively? 3. With whose reign is the Gandhara school of art associated? 4. Which ... of cancer ? 20. From which fund are the salaries of the Judges of the Supreme Court drawn?

Last Answer : Answer : 1. Osteoporosis 2. Europe and Oceania 3. Kanishka 4. Uniform civil code for the citizens 5. 0.62 6. Stamp Duties 7. Nilgiri Hills 8. Todarmal 9. Prime Minister of India 10. Vitamin A ... 15. K2 16. Tax on entertainment 17. Assam 18. Harappan Culture 19. Biopsy test 20. Consolidated Fund

Heavy metals got their name because compared to other atoms they have (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii

Description : Heavy metals got their name because compared to other atoms they have (1) Higher densities (2) Higher atomic masses (3) Higher atomic numbers (4) Higher atomic radii

Last Answer : Higher atomic masses

The core of a transformer (medium size) uses to provide high flux densities

Description : The core of a transformer (medium size) uses to provide high flux densities (a) diamagnetic (c) ferromagnetic core (b) paramagnetic (d) none of these

Last Answer : The core of transformer is made up colled rolled grain oriented. It is a ferromagnetic material..

Which of the following statements holds for the divergence of electric and magnetic flux densities?

Description : Which of the following statements holds for the divergence of electric and magnetic flux densities?  A) Both are zero B) These are zero for static densities but non zero for time varying densities C) It is zero for electric flux density D) It is zero for magnetic flux density

Last Answer : Which of the following statement holds for the divergence of electric and magnetic flux densities ?  (A) Both are zero (B) These are zero for static densities but non zero for time varying densities. (C) It is zero for the electric flux density (D) It is zero for the magnetic flux density

Why do different substances have different solubilities?

Description : Why do different substances have different solubilities?

Last Answer : Need answer

(3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of the atom, the electron configuration determines how it will bond, with what it will bond, and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.

Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide

Substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected are called - (1) Catalysts (2) Hydrocarbons (3) Oxidising agents (4) Substitutes

Description : Substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected are called - (1) Catalysts (2) Hydrocarbons (3) Oxidising agents (4) Substitutes

Last Answer : (1) Catalysts Explanation: Catalysts are substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected. Eg: hydrogenation of vegetable oils using a nickel catalyst.

The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized tissues perform different functions in the organism. (iv) Entire surface of the organism is in contact with the environment for taking in food. (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Description : The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized ... b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Last Answer : Answer: (c)

Second messengers a. are substances that interact with first messengers inside cells b. are substances that bind to first messengers in the cell membrane c. are hormones secreted by cells in response to stimulation by another hormone d. mediate the intracellular responses to many different hormonesand neurotransmitters e. are not formed in the brain

Description : Second messengers a. are substances that interact with first messengers inside cells b. are substances that bind to first messengers in the cell membrane c. are hormones secreted by cells ... the intracellular responses to many different hormonesand neurotransmitters e. are not formed in the brain

Last Answer : mediate the intracellular responses to many different hormonesand neurotransmitters

Third law of thermodynamics is helpful in (A) Prediction of the extent of a chemical reaction (B) Calculating absolute entropies of substances at different temperature (C) Evaluating entropy changes of chemical reaction (D) Both (B) and (C)

Description : Third law of thermodynamics is helpful in (A) Prediction of the extent of a chemical reaction (B) Calculating absolute entropies of substances at different temperature (C) Evaluating entropy changes of chemical reaction (D) Both (B) and (C)

Last Answer : D) Both (B) and (C)

The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their (A) Equivalent weight (B) (Equivalent weight)2 (C) Molecular weight (D) (Molecular weight)2

Description : The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their (A) Equivalent weight (B) (Equivalent weight)2 (C) Molecular weight (D) (Molecular weight)2

Last Answer : (A) Equivalent weight