Advertisements
Advertisements
प्रश्न
Why do transition metals exhibit higher enthalpy of atomization?
Advertisements
उत्तर
Enthalpy of Atomisatioun α number of volence electrons
→ Greater the number of valence electrons. stronger is the resultant bonding.
→ For transition metals, more is (n -1) d electrons and n s electrons so more is intermetallic bonding. So, higher is enthalpy of Atomisation for Transmition metals.
APPEARS IN
संबंधित प्रश्न
Complete and balance the following chemical equations
`Fe^(2+) + MnO_4^(-) + H^+ ->`
Maximum oxidation state is shown by ____________.
When an oxide of manganese (A) is fused with KOH in the presence of an oxidising agent and dissolved in water, it gives a dark green solution of compound (B). Compound (B) disproportionates in neutral or acidic solution to give purple compound (C). An alkaline solution of compound (C) oxidises potassium iodide solution to a compound (D) and compound (A) is also formed. Identify compounds A to D and also explain the reactions involved.
A metallic ion 'M' reacts with chloride ion to form white precipitate which is readily soluble in aqueous ammonia. Identify 'M'?
On strong heating AgNO3, the gases evolved are:-
Give reasons for the following statement:
Transition metals and most of their compounds show paramagnetic behaviour.
Assertion (A): Transition metals show their highest oxidation state with oxygen.
Reason (R): The ability of oxygen to form multiple bonds to metals.
Account for the following:
Eu2+ with electronic configuration [Xe]4f76s2 is a strong reducing agent.
Write the ionic equation for reaction of KI with acidified KMnO4.
‘Spin only’ magnetic moment is the same for which of the following ions?
- Ti3+
- Cr2+
- Mn2+
- Fe2+
- Sc3+
Choose the most appropriate answer from the options given below:
