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प्रश्न
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.
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उत्तर
The white particles of baking soda disappear when put in lemon juice. This means that it is a chemical change.
संबंधित प्रश्न
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
Write the missing reactants and products and balance the equations.
NaOH + ............... `→` NaCI + ...................
What is the reaction called when oxidation and reduction take place simultaneously? Explain with one example.
What do you understand by 'chemical reaction'?
Give a chemical test to distinguish between the following gases.
HCl and Cl2
Select the correct answer for the following options:
The basic gas obtained when two gases react in presence of a catalyst and the reaction is exothermic.
Give a word equation for the following reaction.
Two solids which combine on heating, to give a liquid.
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
Mention the various conditions required for a chemical reaction to occur.
What are the chemical reactions that occur in everyday life?
