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प्रश्न
Give one use of the following substance:
Brass
एक पंक्ति में उत्तर
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उत्तर
Brass: To make water taps and utensils.
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संबंधित प्रश्न
Define: Elements
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
What are the different types of mixtures ?
What are the advantages of chromatography?
State the number of atoms of H2SO4
Name: A form of carbon used as a gem
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Write the names of elements from the following symbol:
Br
Write an answer to the following question in your own words.
Which elements (metals and non-metals), compounds and mixtures do we use in our day-to-day life?
