JEE Advanced 2017 Paper 1 Offline | p-Block Elements Question 22 | Chemistry

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 $${H_2}O$$

JEE Advanced 2016 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

The nitrogen containing compound produced in the reaction of HNO₃ with P₄O₁₀

can also be prepared by reaction of P₄ and HNO₃.

is diamagnetic.

contains one N$$-$$N bond.

reacts with Na metal producing a brown gas.

JEE Advanced 2016 Paper 1 Offline

MCQ (More than One Correct Answer)

-2

The crystalline form of borax has.

tetranuclear [B₄O₅(OH)₄]^2- unit

all boron atoms in the same plane

equal number of sp² and sp³ hybridised boron atoms

one terminal hydroxide per boron atom

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