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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
A non-metal which is a good conductor of electricity.
विकल्प
oxygen
diamond
zinc
graphite
gold
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उत्तर
graphite
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संबंधित प्रश्न
Fill in the blank
A pure substance has definite.................. and constant ..............
Give Two Examples for Each of the Following: Inert Gases
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Give two examples of Metalloids.
Give two examples of the following.
Metals which are soft
Give reason: Graphite is used to make a lead of the pencils.
Tick (√) the correct alternative from the choice given for the following statement
A metal which is brittle
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 given below.
The negatively charged particles in an atom
Write the names of elements from the following symbol:
Pt
