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प्रश्न
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
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उत्तर
Centrifugation is a technique used in a washing machine to squeeze out water from wet clothes while drying.
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संबंधित प्रश्न
Define the term matter. What is it composed of?
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
Fill in the following blank with suitable words :
The best evidence that the particles of matter are constantly moving comes from the studies of ................. and ...................
The best evidence for the existence and movement of particles in liquids was provided by :
Name the property which enables metals to be drawn into wires.
Fill in the following blanks with suitable words :
Brass is an alloy which is considered a ..............
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
State two physical properties on the basis of which metals can be distinguished from non-metals.
Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium
Milk of Magnesia is :
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Name the process which is used in milk dairies to separate cream from milk.
Which technique can be used to detect and identify traces of poison present in the stomach wash of a person ?
Fill in the following blanks with suitable words :
A heterogeneous mixture of liquid and solid is conveniently separated by...............
Describe a method to separate a mixture of camphor and sand.
Describe the various steps involved in the separation of iodine, iron filings and salt from a mixture.
Complete the given analogy.
Murukku from hot oil: ______:: Coffee powder residue from decoction: ______
A standard sheet of paper is about ______ of atoms thick
Evaporation does form bubbles.
______ is used for industrial refrigeration and transporting frozen food.
