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प्रश्न
Write the formula of the following compound:
Silver [II] chloride
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उत्तर
Silver [II] chloride - AgCl2
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संबंधित प्रश्न
Write down the formulae for the following compounds :
Magnesium hydroxide
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
An element X has a valency of 4 whereas another element Y has a valency of 1. What will be the formula of the compound formed between X and Y ?
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Correct the following statement:
Molecular formula of water is H2O2
Identify the following substance:
Gas C that is colourless and can be used as a bleaching agent.
Name the element in the compound and give the formula of the following compound:
Nitric acid
Name the element in the compound and give the formula of the following compound:
Ethane
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Calcium bisulphite
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Aluminium nitrate
Write the formula of the following compound:
Lead [II] sulphate
Define the term Relative atomic 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.
Mg(SO4)2
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
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).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- 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 |
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.
