1
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Precipitating reagent and conditions)
LIST II
(Cation)
A. $$
\mathrm{NH}_4 \mathrm{Cl}+\mathrm{NH}_4 \mathrm{OH}
$$
I. $$\mathrm{Mn^{2+}}$$
B. $$
\mathrm{NH}_4 \mathrm{OH}+\mathrm{Na}_2 \mathrm{CO}_3
$$
II. $$\mathrm{Pb^{2+}}$$
C. $$
\mathrm{NH}_4 \mathrm{OH}+\mathrm{NH}_4 \mathrm{Cl}+\mathrm{H}_2 \mathrm{~S} \text { gas }
$$
III. $$\mathrm{Al^{3+}}$$
D. dilute $$\mathrm{HCl}$$ IV. $$\mathrm{Sr^{2+}}$$

Choose the correct answer from the options given below:

A
A-III, B-IV, C-I, D-II
B
A-III, B-IV, C-II, D-I
C
A-IV, B-III, C-II, D-I
D
A-IV, B-III, C-I, D-II
2
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement I : Gallium is used in the manufacturing of thermometers.

Statement II : A thermometer containing gallium is useful for measuring the freezing point $$(256 \mathrm{~K})$$ of brine solution.

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
Statement I is true but Statement II is false
C
Statement I is false but Statement II is true
D
Both Statement I and Statement II are false
3
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

The density of '$$x$$' $$\mathrm{M}$$ solution ('$$x$$' molar) of $$\mathrm{NaOH}$$ is $$1.12 \mathrm{~g} \mathrm{~mL}^{-1}$$, while in molality, the concentration of the solution is $$3 \mathrm{~m}$$ ( 3 molal). Then $$x$$ is

(Given : Molar mass of $$\mathrm{NaOH}$$ is $$40 \mathrm{~g} / \mathrm{mol}$$)

A
3.8
B
3.0
C
3.5
D
2.8
4
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Compound/Species)
LIST II
(Shape/Geometry)
A. $$\mathrm{SF_4}$$ I. Tetrahedral
B. $$\mathrm{BrF_3}$$ II. Pyramidal
C. $$\mathrm{BrO_3^-}$$ III. See saw
D. $$\mathrm{NH_4^+}$$ IV. Bent T-Shape

Choose the correct answer from the options given below:

A
A-III, B-II, C-IV, D-I
B
A-III, B-IV, C-II, D-I
C
A-II, B-IV, C-III, D-I
D
A-II, B-III, C-I, D-IV
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