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Question

Identify the correct combination reaction of two compounds to form a new product


A
H2+Cl22HCl
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B
2CO+O22CO2
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C
CaO+H2OCa(OH)2
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D
NH3+HClNH4Cl
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Solution

The correct options are
A $$H_{2} + Cl_{2} \rightarrow 2HCl$$
B $$CaO + H_{2}O \rightarrow Ca(OH)_{2}$$
C $$2CO + O_{2}\rightarrow 2CO_{2}$$
D $$NH_{3} + HCl \rightarrow NH_{4}Cl$$
A combination reaction is a reaction where two or more elements or compounds combine to form a single compound (product). Such reactions may be represented by equations of the following form: X + Y $$\longrightarrow$$ XY.
Example -  $$CaO + H_{2}O \longrightarrow Ca(OH)_{2}$$

                 $$NH_{3} + HCl \longrightarrow NH_{4}Cl$$
So all of the above options are correct.

Chemistry

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