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प्रश्न
Name the metals that are used in jewellery.
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उत्तर
Silver and gold are used for making jewels and for decorative purposes.
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संबंधित प्रश्न
Intermolecular force of attraction is maximum in ............ less in .......... and the least in .............
The inter-molecular force is maximum in
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
What is meant by saying that metals are sonorous ?
What is the difference between solutions and colloids ?
Describe the various steps involved in the separation of iodine, iron filings and salt from a mixture.
How is cream separated from milk ?
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
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
