Question
Write the notes :
Combination Reaction
Combination Reaction
✓
Answer
When two or more reactants combine in a reaction to form a single product. It is called a combination reaction. e.g.: When Magnesium strip is burnt in air, it combines with oxygen, to form white ash of magnesium oxide.
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Complete the following table for homologous series of Alkenes.
→| Name | Molecular formula | Condensed structural formula | Number of carbon atom | Number of $-CH_2-$ units | Boiling point $^\circ C$ |
| Ethene | $C_2H_4$ | $CH_2= CH_2$ | $2$ | $0$ | $-102$ |
| Propene | $C_3H_6$ | $CH_3–CH = CH_2$ | $3$ | $1$ | $-48$ |
| $1-$Butene | $C_4H_8$ | $CH_3–CH_2–CH = CH_2$ | ______ | ______ | $-6.5$ |
| $1-$Pentene | $C_5H_{10}$ | $CH_3–CH_2–CH_2–CH = CH_2$ | ______ | ______ | $30$ |
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