Advertisements
Advertisements
Question
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Which element shows only +3 oxidation state?
Solution
Sc shows only the +3 oxidation state.
APPEARS IN
RELATED QUESTIONS
Complete the following chemical equations:
`(i) Cr_2O_7^(2-)+6Fe^(2+)+14H^+ ->`
`(ii) 2CrO_4^(2-)+2H^+ ->`
`(iii) 2MnO_4^-+5C_2O_4^(2-)+16H^+ ->`
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Which element is a strong oxidising agent in +3 oxidation state and why?
What are the transition elements? Write two characteristics of the transition elements.
Why are Mn2+ compounds more stable than Fe2+ towards oxidation to their +3 state?
An antifriction alloy made up of antimony with tin and copper, which is extensively used in machine bearings is called _______.
(A) Duralumin
(B) Babbitt metal
(C) Spiegeleisen
(D) Amalgam
Explain why transition metals and their compounds act as a catalyst.
Electronic configuration of a transition element X in +3 oxidation state is [Ar]3d5. What is its atomic number?
Give reasons for the following statement:
Transition metals and most of their compounds show paramagnetic behaviour.
Give a reason for the following.
Some transition metals and their compounds get attracted towards the magnetic field.
Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following point:
Atomic sizes
