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प्रश्न
State the property of the following substance.
Sodium nitrate is soluble in water, but calcium carbonate is not.
विकल्प
Physical
Chemical
उत्तर
Physical
संबंधित प्रश्न
State two characteristic properties of a solid.
Give one difference between atoms and molecules.
Describe simple experiments to prove that gases have mass.
Complete the given analogy.
Solid: Rigidity:: Gas: ______
Complete the given analogy.
Solid: Definite shape:: ______: Shape of the vessel.
Identify the state of matter based on the arrangement of the molecules.
Solids are compressible.
Which of the following are homogeneous in nature?
- ice
- wood
- soil
- Air
The tendency of particles to spread out in order to occupy the available space is ______.
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]
