1
JEE Main 2023 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Ion having highest hydration enthalpy among the given alkaline earth metal ions is :

A
$$\mathrm{Sr}^{2+}$$
B
$$\mathrm{Ca}^{2+}$$
C
$$\mathrm{Be}^{2+}$$
D
$$\mathrm{Ba}^{2+}$$
2
JEE Main 2023 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Structures of $$\mathrm{BeCl}_{2}$$ in solid state, vapour phase and at very high temperature respectively are :

A
Polymeric, Dimeric, Monomeric
B
Dimeric, Polymeric, Monomeric
C
Polymeric, Monomeric, Dimeric
D
Monomeric, Dimeric, Polymeric
3
JEE Main 2023 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The group of chemicals used as pesticide is :

A
Dieldrin, Sodium arsinite, Tetrachloroethene
B
Aldrin, Sodium chlorate, Sodium arsinite
C
DDT, Aldrin
D
Sodium chlorate, DDT, PAN
4
JEE Main 2023 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements:

Statement I: Morphine is a narcotic analgesic. It helps in relieving pain without producing sleep.

Statement II: Morphine and its derivatives are obtained from opium poppy.

In the light of the above statements, choose the correct answer from the options given below

A
Both Statement I and Statement II are true
B
Statement I is true but Statement II is false
C
Both Statement I and Statement II are false
D
Statement I is false but Statement II is true
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