1
JEE Main 2022 (Online) 27th July Evening Shift
+4
-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 :

A
Both (A) and (R) are true and (R) is the correct explanation of (A)
B
Both (A) and (R) are true but (R) is not the correct explanation of (A)
C
(A) is true but (R) is false
D
(A) is false but (R) is true
2
JEE Main 2022 (Online) 27th July Morning Shift
+4
-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.

A
Both A and R are correct and R is the correct explanation of A.
B
Both A and R are correct but R is NOT the correct explanation of A.
C
A is correct but R is not correct.
D
A is not correct but R is correct.
3
JEE Main 2022 (Online) 27th July Morning Shift
+4
-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.

A
Both Statement I and Statement II are true.
B
Both Statement I and Statement II are false.
C
Statement I is true but Statement II is false.
D
Statement I is false but Statement II is true.
4
JEE Main 2022 (Online) 27th July Morning Shift
+4
-1

Which oxoacid of phosphorous has the highest number of oxygen atoms present in its chemical formula?

A
Pyrophosphorus acid
B
Hypophosphoric acid
C
Phosphoric acid
D
Pyrophosphoric acid
JEE Main Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
EXAM MAP
Joint Entrance Examination