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1
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
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Correct statement about alkali metal oxides is :

A
peroxides are colored.
B
superoxides are paramagnetic.
C
oxides are paramagnetic.
D
peroxides are both colored and paramagnetic.
2
JEE Main 2022 (Online) 29th June Evening Shift
MCQ (Single Correct Answer)
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Amongst baking soda, caustic soda and washing soda, carbonate anion is present in :

A
washing soda only.
B
washing soda and caustic soda only.
C
washing soda and baking soda only.
D
baking soda, caustic soda and washing soda.
3
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
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Arrange the following in the decreasing order of their covalent character :

(A) LiCl

(B) NaCl

(C) KCl

(D) CsCl

Choose the most appropriate answer from the options given below :

A
(A) > (C) > (B) > (D)
B
(B) > (A) > (C) > (D)
C
(A) > (B) > (C) > (D)
D
(A) > (B) > (D) > (C)
4
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Match List-I with List-II

List-I
(Metal)		 List-II
(Emitted light wavelength (nm))
(A) Li (I) 670.8
(B) Na (II) 589.2
(C) Rb (III) 780.0
(D) Cs (IV) 455.5

Choose the most appropriate answer from the options given below :

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