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Question
Tick (√) the correct alternative from the choice given for the following statement
A gaseous non-metal.
Options
Oxygen
Diamond
Zinc
Graphite
Gold
Solution
Oxygen
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RELATED QUESTIONS
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Why is it necessary to separate the constituents of a mixture.
Give two examples of Non-metals.
Tick (√) the correct alternative from the choice given for the following statement.
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Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
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 A, B, C, D & E for the statement given below :
A diatomic molecule.
The first letter of an element is always written in ______ letter.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
Higher-Order Thinking questions:
Why is hydrogen considered an element?
