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प्रश्न
Indicate whether the following statement is true or false:
Molecules can exist independently.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Find the atomicity of the Following molecule:
Carbon Monoxide
Fill in the blank
The most abundant element in the earth’s crust is _______.
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
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 ___________
Give an example of two liquids which form homogenous.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
Reason out
Elements are called semimetals.
Give the chemical formula for cane sugar.
