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1

JEE Main 2021 (Online) 25th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

The major product of the following chemical reaction is :

JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 130 English

JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 130 English

A

$$C{H_3}C{H_2}CHO$$

B

$$C{H_3}C{H_2}C{H_3}$$

C

$$C{H_3}C{H_2}C{H_2}OH$$

D

$${(C{H_3}C{H_2}CO)_2}O$$

2

JEE Main 2021 (Online) 25th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

In Freundlich adsorption isotherm at moderate pressure, the extent of adsorption $$\left( {{x \over m}} \right)$$ is directly proportional to P^x. The value of x is :

A

$$\infty $$

B

zero

C

1

D

$${{1 \over n}}$$

3

JEE Main 2021 (Online) 25th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

In which of the following pairs, the outer most electronic configuration will be the same?

A

Cr⁺ and Mn²⁺

B

Ni²⁺ and Cu⁺

C

V²⁺ and Cr⁺

D

Fe²⁺ and Co⁺

4

JEE Main 2021 (Online) 25th February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Ellingham diagram is a graphical representation of :

A

$$\Delta$$G vs P

B

$$\Delta$$G vs T

C

($$\Delta$$G $$-$$ T$$\Delta$$S) vs T

D

$$\Delta$$H vs T

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