1
JEE Advanced 2017 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0.75
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The order of the oxidation state of the phosphorous atom in

$${H_3}P{O_2},{H_3}P{O_4},{H_3}P{O_3}$$ and $${H_4}{P_2}{O_6}$$ is
A
$${H_3}P{O_3} > {H_3}P{O_2} > {H_3}P{O_4} > {H_4}{P_2}{O_6}$$
B
$${H_3}P{O_4} > {H_3}P{O_2} > {H_3}P{O_3} > {H_4}{P_2}{O_6}$$
C
$${H_3}P{O_4} > {H_4}{P_2}{O_6} > {H_3}P{O_3} > {H_3}P{O_2}$$
D
$${H_3}P{O_2} > {H_3}P{O_3} > {H_4}{P_2}{O_6} > {H_3}P{O_4}$$
2
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
The reaction, $$3Cl{O^ - }(aq)$$$$ \to ClO_3^ - (aq) + 2C{l^ - }(aq)$$ is an example of :
A
Oxidation reaction
B
Reduction reaction
C
Disproportionate reaction
D
Decomposition reaction
3
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
Amongst the following identify the species with an atom in +6 oxidation state
A
$$MnO_4^ - $$
B
$$Cr(CN)_6^{3 - }$$
C
$$NiF_6^{2 - }$$
D
$$Cr{O_2}C{l_2}$$
4
IIT-JEE 1999
MCQ (Single Correct Answer)
+2
-0.5
The normality of 0.3 M phosphorus acid (H3PO3) is
A
0.1
B
0.9
C
0.3
D
0.6
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