The correct statement is

(1) Green vitriol and blue vitriol are isomorphous

(2) KMnO4 and K2Cr2O7 are coloured due to d-d transitions

(3) Cu2Cl2 and Ag2S are coloured

(4) Upon strong heating paramagnetic gases are evolved by CuSO4 and AgNO3

Subtopic:  d-Block Elements- Properties & Uses |
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Which is true about ionic radius of M2+?

(1) Ni2+<Cu2+<Zn2+

(2) Ni2+>Cu2+>Zn2+

(3) Cu2+<Ni2+<Zn2+

(4) Zn2+<Ni2+<Cu2+

Subtopic:  d-Block Elements- Properties & Uses |
 59%
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Which of the following will not give a positive chromyl chloride test?

(1) CuCl2

(2) ZnCl2

(3) HgCl2

(4) NH4Cl

Subtopic:  d-Block Elements- Properties & Uses |
 54%
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What is the n-factor ratio when KMnO4 reacts with conc. HCl?

(1) 3:4

(2) 8:1

(3) 16:1

(4) 2:1

Subtopic:  Chemistry of Mn and Cr Compounds |
 53%
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Which of the following can not exist together in aqueous solution?

(1) HgCl2 and SnCl2

(2) HgCl2 and SnCl4

(3) SnCl4 and FeCl3

(4) SnCl4 and PbCl4

Subtopic:  d-Block Elements- Properties & Uses |
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A substance is found to have a magnetic moment of 3.9 B.M. The ion may be 

(1) Fe+3

(2) Mn+2

(3) Co+2

(4) Cu+2

Subtopic:  d-Block Elements- Properties & Uses |
 77%
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When an excess of KCN is added to a solution of CuSO4, the final product obtained is :

1. K2[Cu(CN)4]

2. K3[Cu(CN)4]

3. CuCN

4. K[Cu(CN)2]

Subtopic:  Introduction, Classification and Nomenclature |
 57%
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Which of the following atomic numbers is not the atomic number of the inner transition element: 29, 59, 74, 95, 102, 104?

(1) 59

(2) 95

(3) 102

(4) 104

Subtopic:  Lanthanoid & Actinoids Contraction |
 60%
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Which of the following is the correct order of second ionization energy?

(1) V>Cr>Mn

(2) V<Cr<Mn

(3) V<Cr>Mn

(4) V>Cr<Mn

Subtopic:  d-Block Elements- Properties & Uses |
 67%
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When dimethyl glyoxime is subjected to reflux with pure nickel sheet pieces in an appropriate solvent for 10 minutes, what is the outcome?

(1) Red precipitate

(2) Blue precipitate

(3) Yellow precipitate

(4) No precipitate

Subtopic:  d-Block Elements- Properties & Uses |
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