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Science TNSB Mentoring
Class 10 Crash course
Types of chemical reactions
Classification of chemical reactions
4.
Combination reaction
Question:
3
m.
Answer the given question:
Define combination reaction with examples.
A reaction in which
single compound breaks down into simpler substances by absorption of light
compound breaks down into simpler substances by passing electric current
two or more simple substances combine to form a two or more compounds
two or more substances combine to form a single product
is known as
combination
reaction. Most combination reactions are
exothermic
endothermic
reversible
absorbs energy
\(Compound\) + \(Compound\) → \(Compound\)
Example:
\(2AgCl → 2Ag + Cl_2\)
\(PCl_3 + Cl_2 → PCl_5\)
\(SiO_2\) + \(CaO\) → \(CaSiO_3\)
\(2Na + Cl_2 → 2NaCl\)
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