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प्रश्न
______ is not made of matter.
पर्याय
Gold ring
Iron nail
Light ray
Oil drop
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उत्तर
Light ray is not made of matter.
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संबंधित प्रश्न
Name one solid, one liquid and one gaseous non-metal.
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Name the different types of solutions. Give one example of each.
What is a colloid ? Give two examples of colloids (or colloidal solutions)
One of the following represents the solution of solid in a solid. This one is :
Fill in the following blanks with suitable words :
The separation of liquids by fractional distillation is based on the difference in their .....................
What's the solution?
We need to rub salt on a corncob, but only salt crystals are available.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
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
Complete the following table:
| S.No. | CELSIUS | KELVIN |
| 1. | 90°C | 363 K |
| 2. | ______ | 283 K |
| 3. | 63 °C | ______ |
| 4. | 250°C | ______ |
| 5. | ______ | 303 K |
