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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
Define the following term of Atom .
Define matter. Give four examples of matter.
Name a metal which is soft and a non-metal which is hard.
“Is malleable and ductile” best describes :
Which one of the following is not a metalloid ?
Iron powder and sulphur powder were mixed together and divided into two parts A and B. When part A was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute hydrochloric acid was added to part B then gas E was evolved.
- What type of substance is B ?
- What type of substance is C ?
- Name the gas (i) D, and (ii) E ?
- State one characteristic property of gas D.
- Write one test to identify gas E.
Which technique is used in a washing machine to squeeze out water from wet clothes while drying ?
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water ?
A teabag placed in a cup of hot water will diffuse into the water.
Define the term matter.
