Paper chromatography uses a solid stationary phase (paper) and a liquid mobile phase (solvent). The correct answer remains Solid/Liquid, as the paper acts as a solid support and the solvent moves through it as a liquid.
2682
What method is employed to remove suspended solids from a liquid mixture?
Filtration is a technique used to separate insoluble particles from liquids by passing the mixture through a filter medium, which traps the solid particles and allows the liquid to pass through.
2683
A substance with extremely high vapour pressure at its melting point will exhibit a specific phase transition when heated.
When a substance has high vapour pressure at its melting point, it can transition directly from solid to gas without going through the liquid phase due to the strong intermolecular forces holding the molecules together.
2684
What is the residue left after sugar crystallization from concentrated sugar cane juice?
The residue left after sugar crystallization is known as molasses. It's a thick, dark liquid derived from refining sugar cane or sugar beets. The process involves concentrating the juice and then crystallizing the sugar, leaving molasses as the by-product.
2685
What should be considered when using a funnel with a breaker?
The correct answer is 'splashing' because touching the breaker's wall prevents liquid from splashing out, ensuring a smooth and controlled flow of materials.
2686
Rising of a wetting liquid in a capillary tube is due to__________________?
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2687
Process used to separate insoluble particles from liquids is ___________ ?
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2688
Why doesn't mountain snow melt completely when the sun warms it?
A high latent heat of fusion means a large amount of heat energy is required to change the snow from solid to liquid without changing its temperature. This explains why snow melts gradually even under consistent solar heating.
2689
How does surface tension change when a liquid's surface area is increased?
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2690
Which analytical technique separates components of a mixture by passing the sample through a stationary phase where components travel at different rates?
Chromatography is a versatile separation technique based on the differential distribution of components between a stationary phase and a mobile phase. As the mobile phase carries the mixture through the stationary medium, components interact differently with the stationary phase, causing them to migrate at distinct velocities and separate over time.
