JEE Main 2018 (Online) 15th April Evening Slot | JEE Main Year Wise Previous Years Questions - ExamSIDE.Com

1

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

The correct order of electron affinity is :

A

F > Cl > O

B

F > O > Cl

C

Cl > F > O

D

O > F > Cl

2

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

For per gram of reactant, the maximum quantity of N₂ gas is produced in which of the following thermal decomposition reactions ?
(Given : Atomic wt. - Cr = 52 u, Ba = 137 u)

A

(NH₄)₂Cr₂O₇(s) $$ \to $$ N₂(g) + 4H₂O(g) + Cr₂O₃(s)

B

2NH₄NO₃(s) $$ \to $$ 2 N₂(g) + 4H₂O(g) + O₂(g)

C

Ba(N₃)₂(s) $$ \to $$ Ba(s) + 3N₂(g)

D

2NH₃(g) $$ \to $$ N₂(g) + 3H₂(g)

3

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?

A

I moves faster and has higher R_f value than II

B

II movesfaster and has higher R_f value than I

C

I moves slower and has higher R_f value than II

D

II moves slower and has higher R_f value than I

4

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

The major product formed in the following reaction is :
JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English

JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English

A

JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English Option 1

B

JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English Option 2

C

JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English Option 3

D

JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 252 English Option 4

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