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प्रश्न
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
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उत्तर
Chemical Change.
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संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Condensation of steam is not a chemical change.
Name three biochemical catalysts found in the human body.
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.
................+ HCI `→` NaCI + `"H"_2"O"` + .........................
TRUE \ FALSE
Copper can displace iron from iron sulphate.
TRUE \ FALSE
Evaporation of water is a physical change. True or false ?
Fill in the blank
A new substance is formed in a _______ change.
Balancing a chemical equation is based on
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.
Give an example of a reaction where the following are involved
Light
Give a chemical test to distinguish between the following gases.
CO2 and SO2
Give a chemical test to distinguish between the following gases.
H2 and O2
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Give a balanced equation for the conversion of an ammonium salt to a basic gas.
______ change results in the change of the substance.
Burning of paper is the best example of ______ change.
______ is a natural indicator.
Rusting of iron is ______.
What is thermochemical reactions?
