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प्रश्न
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
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उत्तर
Solid-liquid heterogenous mixture — Sand and water, mud and water, sugar and oil.
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संबंधित प्रश्न
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 |
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Give two examples of non-metals.
How is sodium chloride different from its constituent elements, sodium and chlorine in its properties? Justify.
Give two examples of the following.
Inert gases
Indicate whether the following statement is true or false:
Metals reflect light and are good conductors of electricity
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
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 |
Classify the substances given in Fig. 2.2 into elements and compounds
