1
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
The compounds(s) which generate(s) $${N_2}$$ gas upon thermal decomposition below $${300^ \circ }C$$ is (are)
A
$$N{H_4}N{O_3}$$
B
$$\left( {N{H_4}} \right){}_2C{r_2}O{}_7$$
C
$$Ba{\left( {{N_3}} \right)_2}$$
D
$$M{g_3}{N_2}$$
2
JEE Advanced 2017 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Among the following, the correct statement(s) is (are)
A
$$Al{\left( {C{H_3}} \right)_3}$$ has the three-centre two-electron bonds in its dimeric structure
B
$$B{H_3}$$ has the three-center two-electron bonds in its dimeric structure
C
$$AlC{l_3}$$ has the three-center two-electron bonds in its dimeric structure
D
The Lewis acidity of $$BC{l_3}$$ is greater than that of $$AlC{l_3}$$
3
JEE Advanced 2017 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
The correct statement(s) about the oxoacids, $$HCl{O_4}$$ and $$HClO$$ is (are)
A
The central atom in both $$HCl{O_4}$$ and $$HClO$$ is $$s{p^3}$$ hybridized
B
$$HCl{O_4}$$ is more acidic than $$HClO$$ because of the resonance stabilization of its anion
C
$$HCl{O_4}$$ is formed in the reaction between $$C{l_2}$$ and $${H_2}O$$
D
The conjugate base of $$HCl{O_4}$$ is weaker base than $${H_2}O$$
4
JEE Advanced 2017 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
The color of the $${X_2}$$ molecules of group $$17$$ elements changes gradually from yellow to violet down the group. This is due to
A
The physical state of $${X_2}$$ at room temperature changes from gas to solid down the group
B
Decrease in ionization energy down the group
C
Decrease in $${\pi ^ * } - {\sigma ^ * }$$ gap down the group
D
Decrease in HOMO-LUMO gap down the group
JEE Advanced Subjects