The magnetic moment of a transition metal ion is found to be 3.87 B.M. It is probably:

1.  Fe2+

2.  Ti3+

3.  Cr3+

4.   Ni2

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4
Correct Answer :

Cr3+


Explanation :
No Explanation available for this question

Among the following the compound that is both paramagnetic and coloured is

1.  K2Cr2O7

2.  (NH4)2[FeCl6]

3.  VOSO4

4.  K3[Cu (CN)4]

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4
Correct Answer :

VOSO4


Explanation :
No Explanation available for this question

Horn silver dissolves in excess of sodium cyanide forming

1.  AgCN

2.  Na[Ag(CN)2]

3.  Na2[Ag(CN)3]

4.  Na4[Ag(CN)4]

View Answer  
4
Correct Answer :

Na2[Ag(CN)3]


Explanation :
No Explanation available for this question

Which of the following is used as a catalyst in Deacons process for the manufacture of chlorine

1.  Silver bromide

2.  Cupric chloride

3.  Mercuric oxide

4.  Zinc carbonate

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4
Correct Answer :

Cupric chloride


Explanation :
No Explanation available for this question

Tinning of utensils is done to

1.  Prevent corrosion

2.  Prevent attack of acids

3.  Enhance heat conductance

4.  Beautify utensils

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4
Correct Answer :

Prevent corrosion


Explanation :
No Explanation available for this question

Which of the following gives oxygen on moderate heating

1.  Cupric oxide

2.  Zinc oxide

3.  Mercuric oxide

4.  Aluminium oxide

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4
Correct Answer :

Mercuric oxide


Explanation :
No Explanation available for this question

Calomel is:

1.  HgCl2

2.  HgS

3.  PbCl2

4.  Hg2Cl2

View Answer  
4
Correct Answer :

Hg2Cl2


Explanation :
No Explanation available for this question

Which of the following does not form oxide with air

1.  Silver

2.  Zinc

3.  Mercury

4.  Sodium

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4
Correct Answer :

Silver


Explanation :
No Explanation available for this question

A ring weighing 4 g contains 3 g of gold. It can be marked as

1.  20 carat gold

2.  22 carat gold

3.  18 carat gold

4.  15 carat gold

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4
Correct Answer :

18 carat gold


Explanation :
No Explanation available for this question

In case of actinides, the degree of complex formation decreases as:

1.  M4+>M3+>MO22+>MO2+

2.  M3+>M4+>MO22+>MO2+

3.  M4+>MO22+>M3+>MO2+

4.  MO22+>M4+>MO2+>M3+

View Answer  
4
Correct Answer :

M4+>MO22+>M3+>MO2+


Explanation :
No Explanation available for this question
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