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प्रश्न
A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?
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उत्तर
Iron nails are attracted by magnet. Thus, they can separated from saw dust using magnetic separation.
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संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
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Fill in the following blanks with suitable words :
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Fill in the following blanks with suitable words :
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An atom or group of atoms _________ having a resultant charge.
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(i) ice
(ii) wood
(iii) soil
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