NEET%20Test%20Series-2021%20to%202022/NEET%20Chemistry%20MCQS%20-%20D%20and%20F%20Block%20Elements Sample Test,Sample questions

Question:
 Gun metal is an alloy of:

1.Cu and Al

2.Cu and Sn

3.Cu, Zn and Sn

4.Cu, Zn and Ni

Posted Date:-2021-03-08 14:03:46


Question:
 The pair that has similar atomic radii is

1.Mn and Re

2.Ti and Hf

3.Sc and Ni

4.Mo and W

Posted Date:-2021-03-08 14:03:46


Question:
According to IUPAC nomenclature sodium nitroprusside dihydrate is named as

1.Sodium pentacyanonitrosylferrate (III)

2.Sodium nitroferrocyanide

3.Sodium nitroferricyanide

4.Sodium pentacyanonitrosylferrate (II)

Posted Date:-2021-03-08 14:03:46


Question:
In Fe(CO)5, the Fe-C bond possesses:

1.ionic character

2.sigma character only

3.pi character

4.both sigma and pi characters

Posted Date:-2021-03-08 14:03:46


Question:
Silver nitrate produces a black stain on the skin due to

1.being a strong reducing agent

2.its corrosive action

3.formation of complex compound

4.its reduction to metallic silver

Posted Date:-2021-03-08 14:03:46


Question:
The number of unpaired electrons in gaseous species of Mn3+, Cr3+ and V3+ respectively are:

1.4, 4 and 2

2.3, 3 and 2

3.4, 3 and 2

4.3, 3 and 3

Posted Date:-2021-03-08 14:03:46


Question:
When potassium ferrocyanide crystals are heated with concentrated sulphuric acid, the gas evolved is

1.sulphur dioxide

2.ammonia

3.carbon monoxide

4.carbon dioxide

Posted Date:-2021-03-08 14:03:46


Question:
Which of the following products are obtained when Na2CO3 is added to a solution of copper sulphate?

1.Basic copper carbonate , sodium sulphate and CO2

2.Copper hydroxide, sodium sulphate and CO2

3.Copper carbonate, sodium sulphate and CO2

4.Copper carbonate and sodium sulphate

Posted Date:-2021-03-08 14:03:46


Question:
Which one of the following elements shows the maximum number of different oxidation states in its compounds?

1.Eu

2.La

3.Cd

4.Am

Posted Date:-2021-03-08 14:03:46


Question:
Zinc and mercury do not show variable valency like d-block elements because

1.they are soft

2.their d-shells are complete

3.they have only two electrons in the outermost subshell.

4.their d-shells are incomplete

Posted Date:-2021-03-08 14:03:46


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