Characteristics of chemical Reactions
Characteristics of Chemical Reactions
The important characteristics of chemical reactions are:
Which of the following are correct ? (a) When a silver nitrate solution reacts with sodium chloride solution it gives precipitate of silver chloride and sodium nitrate solution is an example of formation of precipitate. (b) When water is added to quick lime the vessel becomes warm due to evolution of heat is an example of evolution of a gas temperature. . (c) When hydrogen gas react with oxygen gas it results in formation of liquid water is an example of change in state | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) Change in color is the characteristics of chemical reaction . (b) Change in volume is the characteristics of reaction . | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following is necessary for rusting of iron ? | |||
| Right Option : D | |||
| View Explanation | |||
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