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Write the Formula of the Following Compound: Copper [I] Chloride - Chemistry

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प्रश्न

Write the formula of the following compound:

Copper [I] oxide

एका वाक्यात उत्तर
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उत्तर

Copper [I] oxide - Cu2O - `"Cu"^(1+)["O"]^(2-)`

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पाठ 1: The Language Of Chemistry - Additional Questions

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विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 1 The Language Of Chemistry
Additional Questions | Q 12.07

संबंधित प्रश्‍न

Write the chemical formula of the Calcium carbonate.


What is meant by the symbol of an element ? Explain with examples.


The formula of carbonate of a metal M is M2CO3.

What will be the formula of its nitride ?


Correct the following statement:

Formula of iron (lll) oxide is FeO.


Identify the following substance:

Gas C that is colourless and can be used as a bleaching agent.


XCl2 is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.


Name the element in the compound and give the formula of the following compound:

Blue vitriol


Name the element in the compound and give the formula of the following compound:

Ethanol


Write the formula of the following compound:

Sodium bisulphite


Write the formula of the following compound:

Copper [II] oxide


Write the formula of the following compound:

Iron [II] chloride 


Write the formula of the following compound:

Iron [II] sulphide


Write the formula of the following compound:

Iron [II] hydroxide


Write the formula of the following compound:

Lead [II] oxide


Find the valency of the element which is underlined in the following formula.

  1. NaCl
  2. CO2
  3. Al (PO4)
  4. Ba (NO3)2
  5. CaCl2

Which of the following represents a correct chemical formula? Name it.


Write the molecular formulae of all the compounds that can be formed by the combination of the following ions

Cu2+, Na+, Fe3+, C1 , `"SO"_4^-2`, `"PO"_4^3-`


Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).

  1. Ammonia
  2. Carbon monoxide
  3. (Hydrogen chloride
  4. Aluminium fluoride
  5. Magnesium sulphide

Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.

  Across   Down
2 The element used by Rutherford during his α–scattering experiment 1 A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air
3 An element which forms rust on exposure to moist air 4 Both brass and bronze are alloys of the element
5 A very reactive non–metal stored under water 6 The metal which exists in the liquid state at room temperature
6 Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. 8 An element with symbol Pb


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