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प्रश्न
Differentiate between in Chemical reaction and chemical equation.
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उत्तर
| Chemical reaction | Chemical Equation |
| Any chemical change in matter which involves its transformation into one or more new substances is called a chemical reaction. | A chemical equation is the symbolic representation of a chemical reaction using the symbols and the formula of the substances involved in the reaction. |
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संबंधित प्रश्न
Define catalyst.
Write true or false :
When iron and sulphur are heated together a grey mass is formed which is attracted by a magnet .
Explain the following reaction with one suitable example of Displacement reaction.
Choose the correct option from the bracket and explain the statement giving a reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
Addition of an aqueous solution of ZnSO4 to an aqueous solution of BaCl2 is an example of ______ reaction.
State the type of reactions for the following represent and balance the ones that are not balanced.
Cl2 + 2KBr → 2KCl + Br2
State the original colour of the following substance and colour of residue obtained after heating.
Copper carbonate
What do you observe when Cobalt chloride paper is introduced in water vapour.
Give a chemical test to distinguish between the following gases.
HCl and Cl2
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
Select the correct answer for the following options:
The pale blue precipitated obtained when copper [II] sulphate reacts with sodium hydroxide.
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
Give a suitable example with an equation to show the representation of a chemical reaction.
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
The chemical formula of rust is ______.
Iron and rust are the same substances.
Magnesium + oxygen → magnesium oxide.
2Mg + O2 → 2Mg O
Chemical changes are important in our day-to-day life. Give examples.
What is the difference between reactants and products?
