Chemical reactions are of different types. Some of them are described here.
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:
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.
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 | |||
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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 | |||
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A chemical reaction in which two or more substances (reactants) combine to form a new substance ( product) is called _________________. | |||
Right Option : B | |||
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