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प्रश्न
Water contains _____ and _____ element.
उत्तर
Water contains hydrogen and oxygen element.
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संबंधित प्रश्न
What are the different types of mixtures ?
Indicate whether the following statement is true or false:
All elements are artificially prepared
Indicate whether the following statement is true or false:
Noble gases are high reactive
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 given below.
The negatively charged particles in an atom
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
The first letter of an element is always written in ______ letter.
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
