JEE Main 2021 (Online) 25th February Morning Slot | p-Block Elements Question 95 | Chemistry

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JEE Main 2021 (Online) 25th February Morning Slot

MCQ (Single Correct Answer)

-1

The correct statement about B₂H₆ is :

Its fragment, BH₃, behaves as a Lewis base.

All B$$-$$H$$-$$B angles are of 120$$^\circ$$.

The two B$$-$$H$$-$$B bonds are not of same length.

Terminal B$$-$$H bonds have less p-character when compared to bridging bonds.

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

The reaction of NO with N₂O₄ at 250 K gives :

N₂O₃

N₂O₅

N₂O

NO₂

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

Reaction of an inorganic sulphite X with dilute H₂SO₄ generates compound Y. Reaction of Y with NaOH gives X. Further, the reaction of X with Y and water affords compound Z. Y and Z, respectively, are :

S and Na₂SO₃

SO₂ and NaHSO₃

SO₂ and Na₂SO₃

SO₃ and NaHSO₃

JEE Main 2020 (Online) 6th September Morning Slot

MCQ (Single Correct Answer)

-1

The correct statement with respect to dinitrogen is :

N₂ is paramagnetic in nature

it can be used as an inert diluent for reactive chemicals

it can combine with dioxygen at 25^oC

liquid dinitrogen is not used in cryosurgery

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