JEE Advanced 2018 Paper 1 Offline | p-Block Elements Question 18 | Chemistry

JEE Advanced 2018 Paper 1 Offline

MCQ (More than One Correct Answer)

-1

The compounds(s) which generate(s) $${N_2}$$ gas upon thermal decomposition below $${300^ \circ }C$$ is (are)

$$N{H_4}N{O_3}$$

$$\left( {N{H_4}} \right){}_2C{r_2}O{}_7$$

$$Ba{\left( {{N_3}} \right)_2}$$

$$M{g_3}{N_2}$$

JEE Advanced 2017 Paper 2 Offline

MCQ (More than One Correct Answer)

-1

Among the following, the correct statement(s) is (are)

$$Al{\left( {C{H_3}} \right)_3}$$ has the three-centre two-electron bonds in its dimeric structure

$$B{H_3}$$ has the three-center two-electron bonds in its dimeric structure

$$AlC{l_3}$$ has the three-center two-electron bonds in its dimeric structure

The Lewis acidity of $$BC{l_3}$$ is greater than that of $$AlC{l_3}$$

JEE Advanced 2017 Paper 1 Offline

MCQ (More than One Correct Answer)

-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

The physical state of $${X_2}$$ at room temperature changes from gas to solid down the group

Decrease in ionization energy down the group

Decrease in $${\pi ^ * } - {\sigma ^ * }$$ gap down the group

Decrease in HOMO-LUMO gap down the group

JEE Advanced 2017 Paper 1 Offline

MCQ (More than One Correct Answer)

-1

The correct statement(s) about the oxoacids, $$HCl{O_4}$$ and $$HClO$$ is (are)

The central atom in both $$HCl{O_4}$$ and $$HClO$$ is $$s{p^3}$$ hybridized

$$HCl{O_4}$$ is more acidic than $$HClO$$ because of the resonance stabilization of its anion

$$HCl{O_4}$$ is formed in the reaction between $$C{l_2}$$ and $${H_2}O$$

The conjugate base of $$HCl{O_4}$$ is weaker base than $${H_2}O$$

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