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State of the following formula of a compound is incorrect. Incorrectly write the correct formula. (NH4)3SO4 - Chemistry

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प्रश्न

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

(NH4)3SO4

एका वाक्यात उत्तर
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उत्तर

(NH4)3SO4

Correct formula – (NH4)2SO4

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पाठ 1: The Language Of Chemistry - The Language Of Chemistry

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विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 1 The Language Of Chemistry
The Language Of Chemistry | Q 2.01

संबंधित प्रश्‍न

What do the following abbreviations stand for ?

  1. O
  2. 2O
  3. O2
  4. 3O2

An element Z has a valency of 3. What is the formula of oxide of Z ?


Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.


An element X of valency 3 combines with another element Y of valency 2. What will be the formula of the compound formed ?


Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.


Identify the following substance:

An alkaline gas A which gives dense white fumes with hydrogen chloride.


Identify the following substance:

Gas B that has an offensive smell as of rotten eggs.


Identify the following substance:

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


The formula of the nitride of a metal X is XN, state the formula of :

  1. its sulphate
  2. its hydroxide.

Write the formula of the following compound: 
Potassium chloride

Write the formula of the following compound:

Potassium sulphate


Write the formula of the following compound:

Copper [I] sulphide


Write the formula of the following compound:

Lead [II] oxide


State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

NaZnO2


Write the chemical formula for the following elements.

  1. Hydrogen
  2. Nitrogen
  3. Ozone
  4. Sulphur

Write the chemical formula for the following compounds

  1. Aluminium sulphate
  2. Silver nitrate
  3. Magnesium oxide
  4. Barium chloride

Write the molecular formulae for the following compounds

Calcium (II) phosphate


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


Derive the chemical formula for calcium chloride.


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