The element from group 15 that forms a strong bond with hydrogen is:

1.	N	2.	P
3.	As	4.	Sb

The condition that does not exist in the Haber process for the manufacturing of ammonia is:

1. Pressure (around 200 ×10⁵ Pa)
2. Temperature (700 K)
3. Catalyst such as iron oxide.
4. Presence of inert gases.

An element that does not have a d-orbital is:

The least basic compound is:

1. BiH₃

2. AsH₃

3. PH₃

4. NH₃

Incorrect statement about red phosphorus is:

1. It is hard and crystalline.

2. It is poisonous.

3. It is less reactive than white phosphorus.

4. It is insoluble in water.

Which element exhibits the highest catenation property?

1. Phosphorus

2. Nitrogen

3. Antimony

4. Bismuth

PCl₅ acts as

1. Reducing agent

2. Oxidising agent

3. Dehydrating Agent

4. None of the above.

The electron gain enthalpy values for O → O^– and O → O^2– are –141 and 702 kJ  mol^-1 , respectively. The correct statement about the formation of oxides is-

\(\mathrm{Xe}+\mathrm{PtF}_6 \rightarrow \text { ? }\)

The product of the above reaction is:

In which compound does phosphorous have the lowest oxidation state?

1. H₃PO₃ 

2. PCl₃ 

3. Ca₃P₂ 

4. POF₃