JEE Main 2022 (Online) 29th June Evening Shift | p-Block Elements Question 40 | Chemistry | JEE Main - ExamSIDE.com

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1

JEE Main 2022 (Online) 29th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

A

NaBH₄

B

LiBH₄

C

B₂H₆

D

Na₂B₄O₇

2

JEE Main 2022 (Online) 29th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

Sulphur dioxide is one of the components of polluted air. SO₂ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO₂ is

A

2SO₂ + O₂ $$\to$$ 2SO₃

B

SO₂ + O₃ $$\to$$ SO₃ + O₂

C

SO₂ + H₂O₂ $$\to$$ H₂SO₄

D

2SO₂ + O₂ + 2H₂O $$\to$$ 2H₂SO₄

3

JEE Main 2022 (Online) 29th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

A white precipitate was formed when BaCl₂ was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is

A

I^$$-$$

B

SO₃^2$$-$$

C

S^2$$-$$

D

NO₂^$$-$$

4

JEE Main 2022 (Online) 29th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is :

A

Phosphonic acid

B

Phosphinic acid

C

Pyrophosphorus acid

D

Hypophosphoric acid

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