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प्रश्न
Liquids have definite shape and definite volume.
विकल्प
True
False
उत्तर
False.
Correct Liquids have a definite volume but not definite shape.
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संबंधित प्रश्न
Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
Define Aerosol Give one example.
Fill in the following blanks with suitable words :
A heterogeneous mixture of liquid and solid is conveniently separated by...............
What is chromatography ? State its two applications.
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
Why wires cannot be drawn from materials such as stone or wood?
Which of the following statements are true for pure substances?
(i) Pure substances contain only one kind of particles
(ii) Pure substances may be compounds or mixtures
(iii) Pure substances have the same composition throughout
(iv) Pure substances can be exemplified by all elements other than nickel
The movement of particles in liquids is ______.
The physical state of water at 373 K is ______.
Atoms are tiny particles that repel each other when they are squeezed very close.
