1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compounds is not colored yellow?
A
K3[Co(NO2)6]
B
(NH4)3[As(Mo3O10)4]
C
BaCrO4
D
Zn2[Fe(CN)6]
2
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The ionic radii (in Å) of N3–, O2– and F are respectively:
A
1.36, 1.71 and 1.40
B
1.71, 1.40 and 1.36
C
1.71, 1.36 and 1.40
D
1.36, 1.40 and 1.71
3
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is the energy of a possible excited state of hydrogen?
A
–6.8 eV
B
–3.4 eV
C
+6.8 eV
D
+13.6 eV
4
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The mean of the data set comprising of 16 observations is 16. If one of the observation valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data, is :
A
15.8
B
14.0
C
16.8
D
16.0

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