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प्रश्न
Which of the following is a solid?
विकल्प
Kerosene
Air
Water
Apple
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उत्तर
Apple
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संबंधित प्रश्न
Give reasons
Liquids have definite volume but no definite shape
Give reasons
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar
Fill in the blanks:
Any matter which has a definite ______ but no definite shape is called a ______.
Write whether the following statement is true or false:
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely
The three main states of matter are solids, liquids, and gases. Compare the three states with reference to the following characteristics of matter
(a) volume
(b) shape
(c) compressibility
(d) diffusion.
______ soil is suitable for growing cotton.
Filtration method is effective in separating ______ mixture.
Intermolecular forces of attractions are maximum in ______.
Define the term ‘Diffusion’.
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]
