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प्रश्न
Name: a Metal Which is a Poor Conductor of Electricity.
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उत्तर
Tungsten
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संबंधित प्रश्न
Give two examples of the following.
Non-metals which are lustrous
Define:
Atomicity
Name A substance used as an insulator.
Find the atomicity of the Following molecule:
Carbon Monoxide
Indicate whether the following statement is true or false:
Molecules combine to form atoms
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
Match the statements in List I – 1 to 10 correct answers in List II-A to J.
| List I | LIst II | ||
| 1 | Fluorine and chlorine | A | Nitrogen |
| 2 | A diatomic molecule | B | Boron |
| 3 | A molecule containing the elements hydrogen and oxygen. | C | Reactants |
| 4 | A metalloid - showing properties of both metals and non-metals. | D | Chemical Formula |
| 5 | The term used for the substances which take part in the chemical reaction | E | Halogens |
| 6 | The term represents a substance by means of symbols. | F | Water |
| 7 | The term used for the substances formed as a result of a chemical reaction | G | Nitric Acid |
| 8 | A compound containing one atom of zinc and two atoms of chlorine. | H | Products |
| 9 | The chemical name for nitrogen monoxide. | I | Phosphorus |
| 10 | A polyatomic molecule. | J | Zinc Chloride |
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.
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 |
