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Tricks to Remember p Block Reactions | Group 15 | Jee Mains, Advance, NEET, BITSAT & AIIMS Video Lecture - Class 12

FAQs on Tricks to Remember p Block Reactions - Group 15 - Jee Mains, Advance, NEET, BITSAT & AIIMS Video Lecture - Class 12

1. What are the common reactions of group 15 elements in the p block?

Ans. Group 15 elements in the p block, also known as the nitrogen family, exhibit several common reactions. Some of these reactions include the formation of covalent compounds with other elements, the ability to act as reducing agents, and the formation of oxides and hydrides.

2. How do group 15 elements form covalent compounds?

Ans. Group 15 elements have a tendency to gain three electrons to achieve a stable electron configuration. This makes them highly electronegative and allows them to form covalent compounds by sharing electrons with other elements. The number of covalent bonds formed by group 15 elements is typically 3, resulting in compounds such as ammonia (NH3) and phosphine (PH3).

3. What is the role of group 15 elements as reducing agents?

Ans. Group 15 elements can act as reducing agents by donating electrons during a chemical reaction. They have a strong tendency to gain electrons, which allows them to reduce other elements or compounds. For example, nitrogen (N2) can be reduced to ammonia (NH3) by reacting with hydrogen gas in the presence of a catalyst.

4. How do group 15 elements react with oxygen to form oxides?

Ans. Group 15 elements react with oxygen to form oxides with different oxidation states. For example, nitrogen can form several oxides such as nitrogen monoxide (NO), nitrogen dioxide (NO2), and dinitrogen pentoxide (N2O5). These oxides can have various industrial applications, such as in the production of fertilizers and explosives.

5. What are the characteristics of hydrides formed by group 15 elements?

Ans. Group 15 elements can form hydrides by bonding with hydrogen. These hydrides, such as ammonia (NH3) and phosphine (PH3), have distinct characteristics. They are typically colorless gases with a pungent odor and are less dense than air. Ammonia is a strong base and can react with acids to form salts, while phosphine is a weak base and can undergo spontaneous combustion in the presence of air.

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