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प्रश्न
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 |
उत्तर
| Group 'A' | Group 'B' |
| 1. Stainless steel | (e) Alloy |
| 2. Silver | (f) Metal |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (b) compound |
| 5. Coal | (a) Non-metal |
| 6. Hydrogen | (d) Element |
संबंधित प्रश्न
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Give two examples of the following.
Non-metals which are lustrous
Give two examples of the following.
Inert gases
Indicate whether the following statement is true or false:
Noble gases are high reactive
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Complete the statement with the correct words.
_______ are chemicals which are hydroxide (or oxides) of ______ eg. sodium hydroxide.
Differentiate between homogenous & heterogeneous mixtures.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Higher-Order Thinking questions:
Why is hydrogen considered an element?
How are elements classified?
