1
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List I
(molecules/ions)
List II
(No. of lone pairs of e$$^-$$ on central atom)
A. $$\mathrm{IF_7}$$ I. Three
B. $$\mathrm{ICl}$$$$_4^ - $$ II. One
C. $$\mathrm{XeF_6}$$ III. Two
D. $$\mathrm{XeF_2}$$ IV. Zero

Choose the correct answer from the options given below :

A
A - II, B - I, C - IV, D - III
B
A - IV, B - I, C - II, D - III
C
A - IV, B - III, C - II, D - I
D
A - II, B - III, C - IV, D - I
2
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Lithium aluminium hydride can be prepared from the reaction of :

A
$$\mathrm{LiCl}$$ and $$\mathrm{Al_2H_6}$$
B
$$\mathrm{LiH}$$ and $$\mathrm{Al}(\mathrm{OH})_{3}$$
C
$$\mathrm{LiH}$$ and $$\mathrm{Al}_{2} \mathrm{Cl}_{6}$$
D
$$\mathrm{LiCl}, \mathrm{Al}$$ and $$\mathrm{H}_{2}$$
3
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The alkaline earth metal sulphate(s) which are readily soluble in water is/are :

A. $$\mathrm{BeSO}_{4}$$

B. $$\mathrm{MgSO}_{4}$$

C. $$\mathrm{CaSO}_{4}$$

D. $$\mathrm{SrSO}_{4}$$

E. $$\mathrm{BaSO}_{4}$$

Choose the correct answer from the options given below :

A
A and B
B
B and C
C
B only
D
A only
4
JEE Main 2023 (Online) 30th January Morning Shift
Numerical
+4
-1
Out of Syllabus
Change Language

A $$300 \mathrm{~mL}$$ bottle of soft drink has $$0.2 ~\mathrm{M}~ \mathrm{CO}_{2}$$ dissolved in it. Assuming $$\mathrm{CO}_{2}$$ behaves as an ideal gas, the volume of the dissolved $$\mathrm{CO}_{2}$$ at $$\mathrm{STP}$$ is ____________ $$\mathrm{mL}$$. (Nearest integer)

Given : At STP, molar volume of an ideal gas is $$22.7 \mathrm{~L} \mathrm{~mol}^{-1}$$

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