Match the catalysts to the correct process. Catalyst Process A. T i C l 3 i. Wacker process B. P d C l 2 ii. Ziegler – Natta polymerisation C. C u C l 2 iii. Contact process` D. V 2 O 5 iv. Deacon’s process

A → i i , B → i , C → i v , D → i i i

A → i i i , B → i , C → i i , D → i v

A → i i i , B → i i , C → i v , D → i

A → i i , B → i i i , C → i v , D → i

HARD

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

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Important Questions on d and f Block Elements

EASY

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

Find the metallic and ferromagnetic substance.

EASY

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

The colour and magnetic nature of manganate ion

({MnO}_{4}^{2 -})

is-

MEDIUM

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

A compound of vanadium chloride has spin only magnetic moment of

1.73

BM. Its formula is

MEDIUM

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

The statement that is INCORRECT about the interstitial compounds is:

HARD

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

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

MEDIUM

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

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

HARD

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

Maximum number of covalent bonds formed by

N

and

P

are -

MEDIUM

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

Magnetic moment

2.83

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

T i = 22, C r = 24, M n = 25, N i = 28)

HARD

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

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

EASY

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

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

EASY

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

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

MEDIUM

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

The pair of metal ions that can give a spin only magnetic moment of

3.9 B M

for the complex

[M {(H_{2} O)}_{6}] C l_{2}

, is:

EASY

Chemistry>Inorganic Chemistry>d and f Block Elements>General Properties of the Transition Elements

Consider the hydrated ions of

T i^{2 +}, V^{2 +}, T i^{3 +}

and