MEDIUM
Earn 100

Mark the correct statements (s).
(i) Manganese exhibits +7 oxidation state
(ii) Zinc forms coloured ions
(iii) is diamagnetic
(iv) Sc forms +4 oxidation state
(v) Zn exhibits only +2 oxidation state
(a)(i) and (ii)
(b)(ii) and (iv)
(c)(iii) and (iv)
(d)(i) and (v)

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Important Questions on Transition and Inner Transition Elements
EASY
Find the metallic and ferromagnetic substance.

EASY
The colour and magnetic nature of manganate ion is-

MEDIUM
A compound of vanadium chloride has spin only magnetic moment of BM. Its formula is

MEDIUM
The statement that is INCORRECT about the interstitial compounds is:

HARD
Which of the following arrangements does not represent the correct order of the property stated against it?

MEDIUM
Which one of the following species is stable in aqueous solution?

HARD
Maximum number of covalent bonds formed by and are -

MEDIUM
Magnetic moment BM is given by which of the following ions?
(At.nos.

HARD
The equation which is balanced and represents the correct product(s) is

EASY
When heated in air, brown copper powder turns black. This black powder would turn brown again when heated with

EASY
The metal that gives hydrogen gas upon treatment with both the acid as well as the base is

MEDIUM
The pair of metal ions that can give a spin only magnetic moment of for the complex , is:

EASY
Consider the hydrated ions of and . The correct order of their spin-only magnetic moments is:

EASY
Which of the following are the transition metal ions responsible for colour in ruby and emerald respectively?

EASY
The correct order of the first ionization enthalpies is:

EASY
For the following Assertion and Reason, the correct option is:
Assertion: For hydrogenation reactions, the catalytic activity increases from Group to Group metals with maximum activity shown by Group elements.
Reason: The reactants are most strongly adsorbed on group elements.

EASY
Reason of lanthanoid contraction is:

HARD
Spin only magnetic moment is given by:
(Atomic Number of )

EASY
The transition elements that has the lowest enthalpy of atomisation is:

EASY
Match the catalysts to the correct process.
Catalyst | Process | ||
A. | i. | Wacker process | |
B. | ii. | Ziegler – Natta polymerisation | |
C. | iii. | Contact process` | |
D. | iv. | Deacon’s process |

