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प्रश्न
Give one example for the following types of mixtures :
misicible liquids
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उत्तर
Misicible liquids — water and ethanol.
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संबंधित प्रश्न
Fill in the blank
A pure substance has definite.................. and constant ..............
Name the substance you will add to speed up sedimentation.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Give two examples of the following.
Non-metals which are solids
Define: Atom
Indicate whether the following statement is true or false:
Molecules can exist independently.
Complete the statement – an element is a pure substance made up of ____________ atoms.
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Differentiate between homogenous & heterogeneous mixtures.
Name the two elements which are derived from the country.
