CBSE Class 10: Combination and Decomposition Reaction Videos | Chemical Reactions

• what is the color of ferrous sulphate 
• what is pop formula
• BaCl2 +NaSO4 gives NaCl+BaSO4 is a neutalisation reaction?
• On heating blue coloured powder of Copper (I) Nitrate in a boiling tube, Copper Oxide (black), Oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identify the brown gas X evolved. (c) Identify the type of reaction. (d) What could be the pH range of the aqueous solution of the gas X ?
• when metals react with nitric acid then this gas is produced
• what is electrolytic refining
• Mention the type of reaction that take place on heating lead nitrate crystal
• Name the compound used for testing CO2gas.  
• 2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction.
• Colour of ferric oxide

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