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प्रश्न
Give an example of a reaction where the following are involved:
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उत्तर
\[\ce{Pb(NO3)2(s) + 2KI (s) -> 2KNO3 + PbI2 (s)}\]
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संबंधित प्रश्न
A solution of a substance ‘X’ is used for white washing Name the substance ‘X’ and write its formula.
Give an example of the following chemical change.
Two solids combine to form a liquid
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Analogy:
H2O: Water:: NaCl: ______.
Rusting of iron is ______.
______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
______ is a chemical substance is used in whitewashing.
Define the following term:
Chemical change
