1
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Number of lone pairs of electrons in the central atom of $$\mathrm{SCl}_{2}, \mathrm{O}_{3}, \mathrm{ClF}_{3}$$ and $$\mathrm{SF}_{6}$$, respectively, are :

A
0, 1, 2 and 2
B
2, 1, 2 and 0
C
1, 2, 2 and 0
D
2, 1, 0 and 2
2
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In following pairs, the one in which both transition metal ions are colourless is :

A
$$\mathrm{Sc}^{3+}, \mathrm{Zn}^{2+}$$
B
$$\mathrm{Ti}^{4+}, \mathrm{Cu}^{2+}$$
C
$$\mathrm{V}^{2+}, \mathrm{Ti}^{3+}$$
D
$$\mathrm{Zn}^{2+}, \mathrm{Mn}^{2+}$$
3
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In neutral or faintly alkaline medium, $$\mathrm{KMnO}_{4}$$ being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be :

A
5
B
1
C
0
D
3
4
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which among the following pairs has only herbicides?

A
Aldrin and Dieldrin
B
Sodium chlorate and Aldrin
C
Sodium arsinate and Dieldrin
D
Sodium chlorate and sodium arsinite
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