1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
For the cell reaction
2Fe3+(aq) + 2I (aq) $$ \to $$ 2Fe2+(aq) + I2(aq)
$${E_{cell}^\Theta }$$ = 0.24 V at 298 K. The standard Gibbs energy ($$\Delta $$rGo) of the cell reaction is :
[Given that Faraday constant F = 96500 C mol–1]
A
46.32 kJ mol–1
B
23.16 kJ mol–1
C
–46.32 kJ mol–1
D
–23.16 kJ mol–1
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
For the chemical reaction
N2(g) + 3H2(g) ⇌ 2NH3(g)
the correct option is :
A
$$ - {{d\left[ {{N_2}} \right]} \over {dt}} = 2{{d\left[ {N{H_3}} \right]} \over {dt}}$$
B
$$ - {{d\left[ {{N_2}} \right]} \over {dt}} = {1 \over 2}{{d\left[ {N{H_3}} \right]} \over {dt}}$$
C
$$3{{d\left[ {{H_2}} \right]} \over {dt}} = 2{{d\left[ {N{H_3}} \right]} \over {dt}}$$
D
$$ - {1 \over 3}{{d\left[ {{H_2}} \right]} \over {dt}} = -{1 \over 2}{{d\left[ {N{H_3}} \right]} \over {dt}}$$
3
NEET 2019
MCQ (More than One Correct Answer)
+4
-1
Out of Syllabus
Which mixture of the solution will lead to the formation of negatively charged colloidal [AgI] I sol. ?
A
50 mL of 2 M AgNO3 + 50 mL of 1.5 M KI
B
50 mL of 0.1 M AgNO3 + 50 mL of 0.1 M KI
C
50 mL of 1 M AgNO3 + 50 mL of 1.5 M KI
D
50 mL of 1 M AgNO3 + 50 mL of 2 M KI
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one is malachite from the following?
A
Fe3O4
B
CuCO3.Cu(OH)2
C
CuFeS2
D
Cu(OH)2
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