1
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
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For a good quality cement, the ratio of lime to the total of the oxides of $$\mathrm{Si}, \mathrm{Al}$$ and $\mathrm{Fe}$ should be as close as to :

A
3
B
2
C
1
D
4
2
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous $$\mathrm{NaOH}$$ is :

JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 29 English

Choose the correct answer from the options given below:

A
$$\mathrm{C}>\mathrm{A}>\mathrm{D}>\mathrm{B}$$
B
$$\mathrm{D}>\mathrm{B}>\mathrm{A}>\mathrm{C}$$
C
$$\mathrm{A}>\mathrm{B}>\mathrm{D}>\mathrm{C}$$
D
$$\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}$$
3
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct reaction profile diagram for a positive catalyst reaction.

A
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 23 English Option 1
B
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 23 English Option 2
C
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 23 English Option 3
D
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 23 English Option 4
4
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Natural amino acid
LIST II
One letter code
A. Glutamic acid I. Q
B. Glutamine II. W
C. Tyrosine III. E
D. Tryptophan IV. Y

Choose the correct answer from the options given below:

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