JEE Main 2020 (Online) 6th September Evening Slot | p-Block Elements Question 150 | Chemistry

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

JEE Main 2020 (Online) 5th September Evening Slot

MCQ (Single Correct Answer)

-1

Boron and silicon of very high purity can be obtained through :

Liquation

Electrolytic refining

Zone refining

Vapour phase refining

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