1
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
The correct stability order of the following resonance structures of $$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO}$$ is
2
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List I with List II
| LIST I (Element) |
LIST II (Electronic Configuration) |
||
|---|---|---|---|
| A. | $$\mathrm{N}$$ | I. | $$[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5$$ |
| B. | $$\mathrm{S}$$ | II. | $$[\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^4$$ |
| C. | $$\mathrm{Br}$$ | III. | $$[\mathrm{He}] 2 \mathrm{~s}^2 2 \mathrm{p}^3$$ |
| D. | $$\mathrm{Kr}$$ | IV. | $$[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^6$$ |
Choose the correct answer from the options given below:
3
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
The electronic configuration of Einsteinium is :
(Given atomic number of Einsteinium $$=99$$)
4
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following compound can give positive iodoform test when treated with aqueous $$\mathrm{KOH}$$ solution followed by potassium hypoiodite.
A
B
C
D
$$\mathrm{CH_3CH_2CH_2CHO}$$
Paper analysis
Total Questions
Chemistry
30
Mathematics
30
Physics
30
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