MEDIUM
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In the form of dichromate, Cr (VI) is a strong oxidising agent in acidic medium but Mo (VI) in MoO3 and W (VI) in WO3 are not because ___________.

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Important Questions on The d- and f-Block Elements

MEDIUM
Although Zirconium belongs to 4d transition series and Hafnium to 5d transition series even then they show similar physical and chemical properties because _____.
MEDIUM
The correct sequence of the paramagnetic property of the metal ions is
HARD
Maximum number of covalent bonds formed by N and P are -
MEDIUM
Which of the following sets correctly represents the increase in the paramagnetic property of the ions?
EASY
During galvanization of iron, which metal is used for coating the iron surface?
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 ions exhibits d-d transition and paramagnetism as well?
HARD
The equation which is balanced and represents the correct product(s) is
MEDIUM
The pair of metal ions that can give a spin only magnetic moment of 3.9BM for the complex [M(H2O)6]Cl2 , is:
EASY
The colour and magnetic nature of manganate ion MnO42- is-
EASY
Match the catalysts to the correct process.
 
  Catalyst   Process
A. TiCl3 i. Wacker process
B. PdCl2 ii. Ziegler – Natta polymerisation
C. CuCl2 iii. Contact process`
D. V2O5 iv. Deacon’s process