JEE Advanced 2017 Paper 1 Offline | p-Block Elements Question 23 | 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 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

JEE Advanced 2015 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

The correct statements regarding (i) HClO, (ii) HClO₂, (iii) HClO₃ and (iv) HClO₄ is (are)

The number of Cl=O bonds (ii) and (iii) together is two.

The number of lone pairs of electrons on Cl in (ii) and (iii) together is three.

The hybridization of Cl in (iv) is sp³

Amongst (i) to (iv), the strongest acid is (i).

JEE Advanced Subjects