Advertisements
Advertisements
प्रश्न
Which of the following characteristics of transition metals is associated with their catalytic activity?
विकल्प
Paramagnetic nature
Colour of hydrated ions
High enthalpy of atomisation
Variable oxidation states
Advertisements
उत्तर
Variable oxidation states
Explanation:
Transition metals have a tendency to have varying oxidation states, which allows them to create unstable intermediates and provide a novel reaction path with a lower Ea. As a result, transition metals have catalytic activity.
संबंधित प्रश्न
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Which element has the highest m.p?
Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?
What is meant by ‘disproportionation’?
Which one of the following ions is coloured?
Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine. Why?
Identify the metal and justify your answer.
\[\ce{MO3F}\]
On strong heating AgNO3, the gases evolved are:-
Mercury is the only metal liquid at room temperature due to its:-
Which of the following transition metals shows +1 and +2 oxidation states?
Decide which of the following atomic numbers are the atomic numbers of the inner transition elements:
29, 59, 74, 95, 102, 104
