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ICSE Class 8 Answered

Pls provide me some question qch can come in unit test in language of chemistry
Asked by susmita | 30 Jun, 2018, 09:31: PM
answered-by-expert Expert Answer
1. Write the balanced chemical equations

2. Explain the term variable valency


3. Write the molecular formulae for the following compounds.

Common salt

 Sand

 Marble

 Acetic acid


4. Give the symbols of following elements 

 i. Sodium

 ii. Gold

 iii. Mercury

 iv. Potassium

 

5. Differentiate: Acidic radicals and Basic radicals

6. Give the symbols and valencies of following radicals

 Ammonium

 Nitrite  

Aluminium

Carbonate
 
Answered by Varsha | 02 Jul, 2018, 12:45: PM
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