JEE Main 2019 (Online) 9th April Morning Slot | p-Block Elements Question 116 | Chemistry

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JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

C₆₀, an allotrope of carbon contains :

12 hexagons and 20 pentagons.

20 hexagons and 12 pentagons.

16 hexagons and 16 pentagons

18 hexagons and 14 pentagons.

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

Diborane (B₂H₆) reacts with O₂ and H₂O independently, then products formed are

B₂O₃ and HBO₂

B₂O₃ and H₃BO₃

HBO₂ and H₃BO₃

HBO₂ and HBO₃

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

-1

The element that does NOT show catenation is -

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

-1

Iodine reacts with concentrated HNO₃ to yield Y along with other products. The oxidation state of iodine in Y, is -

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