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प्रश्न
Give the symbol of the following element:
Hydroxide
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उत्तर
| Name | Symbol |
| Hydroxide | OH |
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संबंधित प्रश्न
State what a chemical formula denotes.
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the radical of the following valency:
Oxygen
Write the radical of the following valency:
Iodine
Name the following:
An acid whose formula is ‘H2CO3’.
State the valency of the following metallic element and write symbol with the valency
Zinc
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Zincate
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
