Combination Reaction
Combination Reaction
Types of Chemical Reactions:
Chemical reactions are of different types. Some of them are described here.
Combination Reactions:
The reactions in which two or more substances combine to produce a single substance are known as combination reactions or synthesis reactions. This may be represented by:
Case I
When two elements combine to form a compound. Examples
(i) Hydrogen combines with oxygen to form water.
(ii) When magnesium burns in air or oxygen, magnesium oxide is formed.
(iii) Sodium combines with chlorine to form sodium chloride.
Case II
When two or more compounds combine to form a new compound: In some combination reactions two or more compounds combine together to produce a new compound. Examples:
Which of the following are correct ? (a) A chemical reaction in which two or more substances (reactants) combine to form a new substance ( product) is called combination reaction. (b) Combinations reaction is example of (c) Combination of nitrogen and hydrogen gas yields ammonia gas. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Ammonia and hydrogen chloride combine together to form ammonium chloride. (b) Combination of nitrogen and hydrogen gas yields ammonium. (c) Hydrogen combines with oxygen to form water. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) A chemical reaction in which two or more substances (reactants) combine to form a new substance ( product) is called combination reaction. (b) Combination of nitrogen and hydrogen gas yields ammonia gas. | |||
| Right Option : C | |||
| View Explanation | |||
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We started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
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