1.  Zn

2.  Fe2+

3.  Ni3+

4.  Cu+

4
Correct Answer :

Fe<sup>2+</sup><br> <sup></sup>


Explanation :
No Explanation available for this question

1.  +7

2.  +8

3.  +6

4.  +5

4
Correct Answer :

+8


Explanation :
No Explanation available for this question

1.  [Ar]3d7

2.  [Ar]3d1

3.  [Ar]3d54s2

4.  [Ar]3d64s1

4
Correct Answer :

[Ar]3d<sup>5</sup>4s<sup>2</sup><br> <sup></sup>


Explanation :
No Explanation available for this question

1.  1:4

2.  7:32

3.  3:16

4.  3:32

4
Correct Answer :

7:32<br>


Explanation :
No Explanation available for this question

1.  CO,NO

2.  N2O,CO

3.  N2O,CO2

4.  CO2,NO2

4
Correct Answer :

N<sub>2</sub>O,CO<sub>2</sub><br> <sub></sub>


Explanation :
No Explanation available for this question

1.  CO,CO2

2.  HCl,NH3

3.  O2,N2

4.  CO2,N2

4
Correct Answer :

HCl,NH<sub>3</sub><br> <sub></sub>


Explanation :
No Explanation available for this question

1.  HgO

2.  Hg2O2

3.  Hg2O

4.  HgO2

4
Correct Answer :

Hg<sub>2</sub>O


Explanation :
No Explanation available for this question

1.  +7

2.  +5

3.  +3

4.  +1

4
Correct Answer :

+1


Explanation :
No Explanation available for this question

1.  CaCO3 and O3

2.  ClO2 and CaO

3.  Cl2O and CaO

4.  CaC12

4
Correct Answer :

CaC12


Explanation :
No Explanation available for this question

1.  54

2.  10

3.  18

4.  2

4
Correct Answer :

54


Explanation :
No Explanation available for this question

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