Give me the answers of question no.4
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4.
1.The reaction in which two or more substance combine to form a new single substance is called synthesis reaction . This reaction is exothermic reaction
for example : 2H2 +O2 --> 2H2O
A substitution reaction is a reaction in which an atom or a group of atom substitutes another atom in an organic compound. For example, chlorination of alkanes occurs by substitution of H-atom in alkane by Cl-atom.
where R is an alkyl group
2)
https://www.meritnation.com/ask-answer/question/what-do-u-mean-by-electrolytic-decomposition-give-examples/chemical-reactions-and-equations/2527831
https://www.meritnation.com/ask-answer/question/give-an-example-for-photo-chemical-decomposition-recation-w/chemical-reactions-and-equations/5138723
Kindly post remaining queries separately
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4.
1.The reaction in which two or more substance combine to form a new single substance is called synthesis reaction . This reaction is exothermic reaction
for example : 2H2 +O2 --> 2H2O
A substitution reaction is a reaction in which an atom or a group of atom substitutes another atom in an organic compound. For example, chlorination of alkanes occurs by substitution of H-atom in alkane by Cl-atom.
where R is an alkyl group
2)
https://www.meritnation.com/ask-answer/question/what-do-u-mean-by-electrolytic-decomposition-give-examples/chemical-reactions-and-equations/2527831
https://www.meritnation.com/ask-answer/question/give-an-example-for-photo-chemical-decomposition-recation-w/chemical-reactions-and-equations/5138723
Kindly post remaining queries separately
Regards