1
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Match List - I with List - II.

List - I List - II
(A) JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Chemistry in Everyday Life Question 38 English 1 (I) Dishwashing powder
(B) JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Chemistry in Everyday Life Question 38 English 2 (II) Toothpaste
(C) $${C_{17}}{H_{35}}CO{O^ - }N{a^ + } + N{a_2}C{O_3}$$ + Rosinate (III) Laundry soap
(D) $$C{H_3}{(C{H_2})_{16}}COO{(C{H_2}C{H_2}O)_n}C{H_2}C{H_2}OH$$ (IV) Hair conditioner

Choose the correct answer from the options given below :

A
(A) - (III), (B) - (II), (C) - (IV), (D) - (I)
B
(A) - (IV), (B) - (II), (C) - (III), (D) - (I)
C
(A) - (IV), (B) - (III), (C) - (II), (D) - (I)
D
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
2
JEE Main 2022 (Online) 27th June Morning Shift
Numerical
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-1
Out of Syllabus
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Metal deficiency defect is shown by Fe0.93O. In the crystal, some Fe2+ cations are missing and loss of positive charge is compensated by the presence of Fe3+ ions. The percentage of Fe2+ ions in the Fe0.93O crystals is __________. (Nearest integer)

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3
JEE Main 2022 (Online) 27th June Morning Shift
Numerical
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-1
Change Language

If the uncertainty in velocity and position of a minute particle in space are, 2.4 $$\times$$ 10$$-$$26 (m s$$-$$1) and 10$$-$$7 (m) respectively. The mass of the particle in g is ____________. (Nearest integer)

(Given : h = 6.626 $$\times$$ 10$$-$$34 Js)

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4
JEE Main 2022 (Online) 27th June Morning Shift
Numerical
+4
-1
Change Language

2 g of a non-volatile non-electrolyte solute is dissolved in 200 g of two different solvents A and B whose ebullioscopic constants are in the ratio of 1 : 8. The elevation in boiling points of A and B are in the ratio $${x \over y}$$ (x : y). The value of y is ______________. (Nearest integer)

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