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

A compound is formed by two elements $$\mathrm{X}$$ and $$\mathrm{Y}$$. The element $$\mathrm{Y}$$ forms cubic close packed arrangement and those of element $$\mathrm{X}$$ occupy one third of the tetrahedral voids. What is the formula of the compound?

A
$$\mathrm{XY}_{3}$$
B
$$\mathrm{X_3Y}_{2}$$
C
$$\mathrm{X_3Y}$$
D
$$\mathrm{X_2Y}_{3}$$
2
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Strong reducing and oxidizing agents among the following, respectively, are :

A
$$\mathrm{Ce}^{4+}$$ and $$\mathrm{Eu}^{2+}$$
B
$$\mathrm{Eu}^{2+}$$ and $$\mathrm{Ce}^{4+}$$
C
$$\mathrm{Ce}^{4+}$$ and $$\mathrm{Tb}^{4+}$$
D
$$\mathrm{Ce}^{3+}$$ and $$\mathrm{Ce}^{4+}$$
3
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Element detected
LIST II
Reagent used / Product formed
A. Nitrogen I. $$\mathrm{Na_2[Fe(CN)_5NO]}$$
B. Sulphur II. $$\mathrm{AgNO_3}$$
C. Phosphorous III. $$\mathrm{Fe_4[Fe(CN)_6]_3}$$
D. Halogen IV. $$\mathrm{(NH_4)_2MoO_4}$$

Choose the correct answer from the options given below:

A
A-III, B-I, C-IV, D-II
B
A-II, B-I, C-IV, D-III
C
A-IV, B-II, C-I, D-III
D
A-II, B-IV, C-I, D-III
4
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The possibility of photochemical smog formation is more at :

A
Industrial areas
B
Himalayan villages in winter
C
The places with healthy vegetation
D
Marshy lands
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