JEE Main 2022 (Online) 28th July Morning Shift | p-Block Elements Question 26 | Chemistry

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

-1

Match List - I with List - II, match the gas evolved during each reaction.

	List - I		List - II
(A)	$$\left(\mathrm{NH}_{4}\right)_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \stackrel{\Delta}{\longrightarrow}$$	(I)	$$\mathrm{H}_{2}$$
(B)	$$\mathrm{KMnO}_{4}+\mathrm{HCl} \rightarrow$$	(II)	$$\mathrm{N}_{2}$$
(C)	$$\mathrm{Al}+\mathrm{NaOH}+\mathrm{H}_{2} \mathrm{O} \rightarrow$$	(III)	$$\mathrm{O}_{2}$$
(D)	$$\mathrm{NaNO}_{3} \stackrel{\Delta}{\longrightarrow}$$	(IV)	$$\mathrm{Cl}_{2}$$

Choose the correct answer from the options given below :

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{II})$$

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{III})$$

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{II})$$

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Boron is unable to form $$\mathrm{BF}_{6}^{3-}$$.

Reason (R) : Size of B is very small.

In the light of the above statements, choose the correct answer from the options given below :

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true but (R) is false

(A) is false but (R) is true

JEE Main 2022 (Online) 27th July Morning Shift

MCQ (Single Correct Answer)

-1

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Activated charcoal adsorbs SO₂ more efficiently than CH₄.

Reason R : Gases with lower critical temperatures are readily adsorbed by activated charcoal.

In the light of the above statements, choose the correct answer from the options given below.

Both A and R are correct and R is the correct explanation of A.

Both A and R are correct but R is NOT the correct explanation of A.

A is correct but R is not correct.

A is not correct but R is correct.

JEE Main 2022 (Online) 27th July Morning Shift

MCQ (Single Correct Answer)

-1

Given below are two statements.

Statement I: The chlorides of $$\mathrm{Be}$$ and $$\mathrm{Al}$$ have Cl-bridged structure. Both are soluble in organic solvents and act as Lewis bases.

Statement II: Hydroxides of $$\mathrm{Be}$$ and $$\mathrm{Al}$$ dissolve in excess alkali to give beryllate and aluminate ions.

In the light of the above statements, choose the correct answer from the options given below.

Both Statement I and Statement II are true.

Both Statement I and Statement II are false.

Statement I is true but Statement II is false.

Statement I is false but Statement II is true.

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