मराठी

Correct the Following Statement: Molecular Formula of Water is H2o2

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प्रश्न

Correct the following statement:

Molecular formula of water is H2O2

एका वाक्यात उत्तर
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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

Write the chemical formula of the Magnesium chloride.


The formula of carbonate of a metal M is M2CO3.

What will be the formula of its nitride ?


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

Phosphoric acid


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

Ethanol


Write the formula of the following compound: 
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Write the formula of the following compound:

Potassium iodide


Write the formula of the following compound:

Sodium iodide


Write the formula of the following compound:

Zinc sulphate


Write the formula of the following compound:

Copper [I] chloride


Write the formula of the following compound:

Copper [II] sulphide


Write the formula of the following compound:

Tetra amine copper [II] sulphate


Write the formula of the following compound:

Iron [II] sulphate


Write the formula of the following compound:

Lead [II] nitrate


Write the formula of the following compound:

Silver [I] chloride


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

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

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Write the chemical formula for the following compounds

  1. Aluminium sulphate
  2. Silver nitrate
  3. Magnesium oxide
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Which of the following represents a correct chemical formula? Name it.

BiPO4


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


Play a game for writing formula.

Example 1: Make placards with symbols and valencies of the elements separately. Each student should hold two placards, one with the symbol in the right hand and the other with the valency in the left hand. Keeping the symbols in place, students should criss-cross their valencies to form the formula of a compound.


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