This chapter is currently out of syllabus
1
JEE Main 2022 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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An element A of group 1 shows similarity to an element B belonging to group 2. If A has maximum hydration enthalpy in group 1 then B is :

A
Mg
B
Be
C
Ca
D
Sr
2
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The metal that has very low melting point and its periodic position is closer to a metalloid is :

A
Al
B
Ga
C
Se
D
In
3
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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

Assertion A: $$\mathrm{LiF}$$ is sparingly soluble in water.

Reason R: The ionic radius of $$\mathrm{Li}^{+}$$ ion is smallest among its group members, hence has least hydration enthalpy.

In the light of the above statements, choose the most appropriate 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.
4
JEE Main 2022 (Online) 26th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Reaction of $$\mathrm{BeCl}_{2}$$ with $$\mathrm{LiAlH}_{4}$$ gives :

(A) $$\mathrm{AlCl}_{3}$$

(B) $$\mathrm{BeH}_{2}$$

(C) $$\mathrm{LiH}$$

(D) $$\mathrm{LiCl}$$

(E) $$\mathrm{BeAlH}_{4}$$

Choose the correct answer from options given below :

A
(A), (D) and (E)
B
(A), (B) and (D)
C
(D) and (E)
D
(B), (C) and (D)
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