Answer:
iv. -NH₂
Explanation:
The amine group is an activating substituent and provides an <em>ortho-para </em>orientation.
The free electrons in the nitrogen atom provide <u>stabilization by resonance </u>in the sigma complex if the attack by the electrophilic reactant occurs in the positions <em>ortho</em> or <em>para </em>with regards to the nitrogen atom.
1) Chemical equation.
2) Types of reaction.
In the reaction above, we can see that two different compounds get together to form a new compound. <em>This is called a synthesis or a combination.</em>
Decomposition: A compound is broken down into simpler compounds.
Combustion: A compound containing Carbon and Hydrogen combines with oxygen.
Double replacement: Positive and negative ions in two compounds switch places.
Glass is VERY unreactive. meaning that the chemical won't destroy the chemical