Advertisements
Advertisements
Question
Why are pentahalides more covalent than trihalides?
Advertisements
Solution
In pentahalides, the oxidation state is +5 and in trihalides, the oxidation state is +3. Since the metal ion with a high charge has more polarizing power, pentahalides are more covalent than trihalides.
RELATED QUESTIONS
Explain how does nitrogen exhibit anomalous behaviour amongst group 15 elements.
Give reasons for the following : (CH3)3 P = O exists but (CH3)3 N = O does not.
Why does nitrogen show catenation properties less than phosphorus?
Among the hydrides of Group-15 elements, which have the maximum basic character?
Account for the following :
Noble gases have very low boiling points.
What is the action of Magnesium on bismuth.
Explain the geometry of [Cu(NH3)4]2+ on the basis of hybridisation [ At. No. Cu = 29 ].
The strongest oxidising agent is ____________.
The element which forms oxides in all oxidation states varying from +1 to +5 is ____________.
Collectively the elements of group 15 are called:
Which of the following group 15 elements forms metallic bonds in an elemental state?
The p-block element of group 15 that forms predominantly basic oxide is _____________.
Which of the following trihalide is unstable?
Among the following, which one is a wrong statement.
The oxidation state of central atom in the anion of compound \[\ce{NaH2PO2}\] will be ______.
Match the items of Columns I and II and mark the correct option.
| Column I | Column II | |
| (A) | Its partial hydrolysis does not | (1) He |
| (B) | It is used in modern diving apparatus | (2) XeF6 |
| (C) | It is used to provide inert atmosphere for filling electrical bulbs |
(3) XeF4 |
| (D) | Its central atom is in sp3d2 hybridisation | (4) Ar |
In which of the following compounds, metal is in lowest oxidation state?
The correct order of increase acidic strength of CIOH(1), BrOH (II) and lOH (iii) is.
Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4 : 1 ratio) is ______.
