CBSE Class 10 Chemistry Combination and Decomposition Reaction
- Write two observations when lead nitrate is heated in a test tube
- Write the balanced equation for steps involved in white washing walls
- if the symbol of heat i.e triangle is given on the arrow between reactants and products the which type of reaction is that exothermic or endothermic?
- silver nitrate solution is kept in colored bottles.why?
- Give examples of photochemical reaction with explanation ...
- Which two reactions are used in black and white photography
- Why is a combustion reaction an Oxidation reaction
- on heating green coloured ferous sulphate crystal reddish brown solid is left and smell of a gas having odour of burning sulphur is absorbed ? why is the amount of a gas collected in one of the test tube in activity 1.7 double of the amount collected in other. name these gases? give five example of ridox reaction? during the reaction of some metal with dilute hydrochloride following observations were make: the temperature of the reaction rises when aluminium is added. the reaction of sodium metal is found to be highly explosive. some bubbles of a gas are seen when lead is reacted with the acid
- Compound A, the main supporter of life on Earth, needs a drop of sulphuric acid to give a rocket fuel and the supporter of combustion. Compound B, with the same components of A are colourless and kept away from sunlight, produces A and the supporter of combustion. compound C is prepared by using diamond and the supporter of combustion. This compound forms a precipate with slaked lime unless excess amount is passed into it. (a) Identify A, B and C (b) Write balanced chemical equations in each case (c) Name the type of reaction in each case (d) What is the colour of the precipitate left behind in the last case?
- Maam 1. Can you give me the details of all oxides of iron - its colour,formation,chemical equation,etc? 2. Can there be two or more products in a combination reaction? Give examples.
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