1.  basic;NaOH and Ca(OH)2

2.  neutral;Na2CO3 and CaCO3

3.  basic; Na2CO3 and CaCO3

4.  acidic; NaOH and CaCO3

4
Correct Answer :

acidic; NaOH and CaCO<sub>3</sub>


Explanation :
No Explanation available for this question

1.  6 and 6.93

2.  5 and 5.92

3.  5 and 4.9

4.  4 and 5.92

4
Correct Answer :

5 and 5.92


Explanation :
No Explanation available for this question

1.  +6,1090  

2.  +8,1030

3.  +6,1030

4.  +8,1200

4
Correct Answer :

+6,103<sup>0</sup>


Explanation :
No Explanation available for this question

1.  Pb2+>Pb4+

2.  Pb4+> Pb2+

3.  Si2+>Si4+

4.  Sn4+>Sn2+

4
Correct Answer :

Sn<sup>4+</sup>&gt;Sn<sup>2+</sup>


Explanation :
No Explanation available for this question

1.  H2SO3

2.  H2S2O8

3.  O2

4.  H2

4
Correct Answer :

H<sub>2</sub>S<sub>2</sub>O<sub>8</sub>


Explanation :
No Explanation available for this question

1.  -e2/r

2.  -e2/r2

3.  -e2/2r

4.  -e2/2r2

4
Correct Answer :

-e<sup>2</sup>/2r


Explanation :
No Explanation available for this question

1.  9.94x10-12

2.  9.94x10-19

3.  4.97x10-12

4.  4.97x10-19

4
Correct Answer :

9.94x10<sup>-12</sup>


Explanation :
No Explanation available for this question

1.  (x/m) = KP

2.  (x/m) = KPn

3.  log(x/m) = KPn

4.  log(x/m )= Kn logP

4
Correct Answer :

(x/m) = KPn


Explanation :
No Explanation available for this question

1.  sp2

2.  sp3

3.  sp

4.  dsp2

4
Correct Answer :

sp<sup>3</sup>


Explanation :
No Explanation available for this question

1.  MgO,H2O,CO2

2.  Mg(HCO3)2,H2O

3.  Mg(OH)2,H2O

4.  Mg,CO2,H2O

4
Correct Answer :

MgO,H<sub>2</sub>O,CO<sub>2</sub>


Explanation :
No Explanation available for this question

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