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Correct the Following Statement: Molecular Formula of Water is H2o2 - Chemistry

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प्रश्न

Correct the following statement:

Molecular formula of water is H2O2

एका वाक्यात उत्तर

उत्तर

Molecular formula of water is H2O.

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पाठ 1: The Language of Chemistry - Exercise 1 (C) [पृष्ठ १९]

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सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 1 The Language of Chemistry
Exercise 1 (C) | Q 11.2 | पृष्ठ १९

संबंधित प्रश्‍न

Fill the following blanks with suitable words :

In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................


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


What do the symbols, H2, S and O4 mean in the formula H2SO4 ?


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


The formula of carbonate of a metal M is M2CO3.

What will be the formula of its iodide ?   


The formula of carbonate of a metal M is M2CO3.

What will be the formula of its nitride ?


Give the empirical formula of : Benzene C6H6


What is a chemical formula? What is the significance of a formula?give an example to illustrate?​


Write the formula of the following compound:

Sodium hydroxide


Write the formula of the following compound:

Magnesium sulphate


Write the formula of the following compound:

Aluminium chloride


Write the formula of the following compound:

Copper [II] chloride


Write the formula of the following compound:

Copper [II] nitrate


Write the formula of the following compound:

Tetra amine copper [II] sulphate


Write the formula of the following compound:

Iron [II] sulphate


Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.


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

KNO3


Write the chemical formula for the following elements.

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

Write the molecular formulae for the following compounds

Copper (II) bromide


Play a game for writing formula.

Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.

For example:

The formula for sodium sulphate:

2 sodium ions can be fixed on one sulphate ion.

Hence, the formula will be Na2SO4.

Do it yourself:

Now, write the formula of sodium phosphate.


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