1
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II:

LIST I
(Species)
LIST II
(Maximum allowed concentration in ppm in drinking water)
A. $$\mathrm{F^-}$$ I. < 50 ppm
B. $$\mathrm{SO_4^{2-}}$$ II. < 5 ppm
C. $$\mathrm{NO_3^-}$$ III. < 2 ppm
D. $$\mathrm{Zn}$$ IV. < 500 ppm

Choose the correct answer from the options given below :

A
A-IV, B-III, C-II, D-I
B
A-I, B-II, C-III, D-IV
C
A-II, B-I, C-III, D-IV
D
A-III, B-IV C-I, D-II
2
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of electronegativity for given elements is:

A
$$ \mathrm{C}>\mathrm{P}>\mathrm{At}>\mathrm{Br}$$
B
$$\mathrm{Br}>\mathrm{C}>\mathrm{At}>\mathrm{P}$$
C
$$\mathrm{Br}>\mathrm{P}>\mathrm{At}>\mathrm{C}$$
D
$$\mathrm{P}>\mathrm{Br}>\mathrm{C}>\mathrm{At}$$
3
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II:

LIST I LIST II
A. Saccharin I. High potency sweetener
B. Aspartame II. First artificial sweetening agent
C. Alitame III. Stable at cooking temperature
D. Sucralose IV. Unstable at cooking temperature

Choose the correct answer from the options given below:

A
A-II, B-III, C-IV, D-I
B
A-II, B-IV, C-I, D-III
C
A-II, B-IV, C-III, D-I
D
A-IV, B-III, C-I, D-II
4
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of spin only magnetic moments for the following complex ions is

A
$$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}<\left[\mathrm{CoF}_{6}\right]^{3-}<\left[\mathrm{MnBr}_{4}\right]^{2-}<\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{3-}$$
B
$$\left[\mathrm{MnBr}_{4}\right]^{2-}<\left[\mathrm{CoF}_{6}\right]^{3-}<\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}<\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{3-}$$
C
$$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}<\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{3-}<\left[\mathrm{CoF}_{6}\right]^{3-}<\left[\mathrm{MnBr}_{4}\right]^{2-}$$
D
$$\left[\mathrm{CoF}_{6}\right]^{3-}<\left[\mathrm{MnBr}_{4}\right]^{2-}<\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}<\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{3-}$$
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